Category: 1835-49-0

Nitriles used to be known as cyanides; the smallest organic nitrile is ethanenitrile, CH3CN, (old name: methyl cyanide or acetonitrile – and sometimes now called ethanonitrile). 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds, including methyl cyanoacrylate, used in super glue, and nitrile rubber, a nitrile-containing polymer used in latex-free laboratory and medical gloves. Recommanded Product: Tetrafluoroterephthalonitrile.

Han, Xiaocui;Chen, Liyuan;Wang, Yan;Wang, Tianjiao;Cui, Fengchao;Jiang, Zhenhua;Pang, Jinhui research published 《 Novel Polymers with Ultrapermeability Based on Alternately Planar and Contorted Units for Gas Separation》, the research content is summarized as follows. Polymers of intrinsic microporosity (PIMs) have been the potential candidates as gas separation membrane materials, because of their high permeability and good processing. Here, three PIMs (PIM-ABAs) with ultrahigh permeability are reported; these are significantly more permeable than the PIM-1 and other PIMs reported and do not lose high selectivity and good processing merit. The introduction of large and rigid planar units alternatively contorted units suppresses the compact packing of polymer chains, resulting in the hierarchical porosity range of 0.5-4.0 nm. The presence of larger pores is responsible for promoting permeability. PIM-ABA-OMEN demonstrates the optimal CO₂ permeability (16 736 barrer), which is 3.95 times more than PIM-1 (4234 barrer) with equivalent gas selectivity and PIM-ABA-EN exhibits the promotion of both permeability and selectivity. After being aged for 186 days, PIM-ABAs still showed the CO₂ permeability above 8000 barrer, which is almost as 2 times greater than that of unaged PIM-1. This work provides a new strategy for the preparation of PIMs with enhanced gas separation performance.

1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , Recommanded Product: Tetrafluoroterephthalonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles used to be known as cyanides; the smallest organic nitrile is ethanenitrile, CH3CN, (old name: methyl cyanide or acetonitrile – and sometimes now called ethanonitrile). 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds, including methyl cyanoacrylate, used in super glue, and nitrile rubber, a nitrile-containing polymer used in latex-free laboratory and medical gloves. Related Products of 1835-49-0.

Han, Xiaocui;Chen, Liyuan;Wang, Tianjiao;Zhang, Haibo;Pang, Jinhui;Jiang, Zhenhua research published 《 Ultrapermeable polymeric membranes based on particular ultra-rigid units for enhanced gas separation》, the research content is summarized as follows. To overcome the trade-off between permeability and selectivity of polymeric membranes and understand the influence of ultra-rigid units on gas separation performance, a series of PIMs (PIM-EN-x) based on spirodifluoranthene (EN) have been prepared These polymers showed outstanding thermal stability. Their 5% weight loss temperature is higher than 503°C. PIM-EN-x owned high BET surface area, ranging from 804 to 895 m² g^-1. With the increase of EN units, the gas permeability increased. The CO₂ permeability of PIM-EN-40 is 11512 barrer, which is increased by 172% compared to PIM-1 with no loss in selectivity. The gas separation performance of PIM-EN-x surpassed the 2008 upper bound and near the latest upper bound. This work put forward a special structural unit to prepare polymers for CO₂ separation and natural gas sweetening.

Related Products of 1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Organic compounds containing multiple nitrile groups are known as cyanocarbons. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds. One of the most common occurrences of nitriles is in Nitrile rubber. Category: nitriles-buliding-blocks.

He, Shanshan;Zhu, Bin;Jiang, Xu;Han, Gang;Li, Songwei;Lau, Cher Hon;Wu, Yadong;Zhang, Yanqiu;Shao, Lu research published 《 Symbiosis-inspired de novo synthesis of ultrahigh MOF growth mixed matrix membranes for sustainable carbon capture》, the research content is summarized as follows. Mixed matrix membranes (MMMs) are one of the most promising solutions for energy-efficient gas separation However, conventional MMM synthesis methods inevitably lead to poor filler-polymer interfacial compatibility, filler agglomeration, and limited loading. Herein, inspired by symbiotic relations in nature, a universal bottom-up method is designed for in situ nanosized metal organic framework (MOF) assembly within polymer matrixes. Consequently, the method eliminating the traditional postsynthetic step significantly enhanced MOF dispersion, interfacial compatibility, and loading to an unprecedented 67.2 weight% in synthesized MMMs. Utilizing exptl. techniques and complementary d. functional theory (DFT) simulation, it is validated that these enhancements synergistically ameliorated CO₂ solubility, which was significantly different from other works where MOF typically promoted gas diffusion. The approach simultaneously improves CO₂ permeability and selectivity, and superior carbon capture performance is maintained even during long-term tests; the mech. strength is retained even with ultrahigh MOF loadings. This symbiosis-inspired de novo strategy can potentially pave the way for next-generation MMMs that can fully exploit the unique characteristics of both MOFs and matrixes.

1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , Category: nitriles-buliding-blocks

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles used to be known as cyanides; the smallest organic nitrile is ethanenitrile, CH3CN, (old name: methyl cyanide or acetonitrile – and sometimes now called ethanonitrile). 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds, including methyl cyanoacrylate, used in super glue, and nitrile rubber, a nitrile-containing polymer used in latex-free laboratory and medical gloves. HPLC of Formula: 1835-49-0.

Geng, Chenxu;Sun, Yuxiu;Zhang, Zhengqing;Qiao, Zhihua;Zhong, Chongli research published 《 Mitigated Aging in a Defective Metal-Organic Framework Pillared Polymer of an Intrinsic Porosity Hybrid Membrane for Efficient Gas Separation》, the research content is summarized as follows. Although polymers of intrinsic microporosity (PIMs) were recognized as highly permeable membrane materials in gas separation, the phys. aging phenomenon seriously affected their performance due to the collapse of micropores. In this work, we report an alternative approach to alleviate the phys. aging of PIM-based membranes, as demonstrated by pillaring the PIM-1 membrane with defect-engineered metal-organic framework (MOF) nanoparticles. With excellent interfacial compatibility between the defective UiO-66-FA and PIM-1 by the formation of hydrogen-bond networks, the incorporated MOF nanoparticles acted as pillars of the resulting mixed matrix membranes (UiO-66-FA/PIM-1 MMM) to prevent the collapse of the micropores of the PIM-1 membrane and hence reduce its aging. Concurrently, defective MOFs in the polymer matrix endow the resulting MMMs with fast diffusion pathways and facilitate CO₂ transport. Compared with the pristine PIM-1 membrane, UiO-66-FA/PIM-1 MMM displayed maintained CO₂/N₂ selectivity of about 23.1 but a sharp increased CO₂ permeability from 3980 to 16,591 barrer. Only a 25% reduction in CO₂ permeability was observed for the UiO-66-FA/PIM-1 MMM after 160 days of operation under the mixed-gas CO₂/N₂ separation conditions, which is less than the equivalent losses of 40 and 76% for the counterpart MOF-based hybrid membrane and PIM-1, resp. Given that the performances of the resulting membranes far surpass the 2008 Robeson upper bound, this study may provide a feasible way for sustainable development of PIM-based MMMs in gas separation application.

HPLC of Formula: 1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Industrially, the main methods for producing nitriles are ammoxidation and hydrocyanation. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Both routes are green in the sense that they do not generate stoichiometric amounts of salts. Related Products of 1835-49-0.

Gkika, Despina A.;Filiz, Volkan;Rangou, Sofia;Kyzas, George Z.;Mitrοpoulos, Athanasios C. research published 《 Cost Profile of Membranes That Use Polymers of Intrinsic Microporosity (PIMs)》, the research content is summarized as follows. Assessing the financial impact of polymers of intrinsic microporosity, otherwise known as PIMs, at the lab scale has been impeded by the absence of a holistic approach that would envelop all related financial parameters, and most importantly any indirect costs, such as laboratory accidents that have been consistently neglected and undervalued in past assessments. To quantify the cost of PIMs in relation to the risks befalling a laboratory, an innovative cost evaluation approach was designed. This approach consists of three stages. Firstly, a two-fold “window of opportunity” (WO) theory is suggested, dividing the total cost profile into two segments, followed up by a qual. risk anal. to establish the potential cost components. The last stage builds on a total cost of ownership model, incorporating the two types of WO. The total cost of ownership (TCO) approach was selected to ascertain the costs and construct the cost profile of PIMs, according to laboratory exptl. data. This model was applied to the synthesis and physicochem. characterization processes. The quant. anal. revealed that the most influential parameters for synthesis are accidents and energy costs. This is in contrast with the physicochem. characterization process, where the most important determinant is the energy cost.

Related Products of 1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Organic compounds containing multiple nitrile groups are known as cyanocarbons. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds. One of the most common occurrences of nitriles is in Nitrile rubber. Safety of Tetrafluoroterephthalonitrile.

Gong, Jun;Huang, Ruishan;Wang, Chunfei;Zhao, Zujin;Tang, Ben Zhong;Zhang, Xuanjun research published 《 Circularly polarized luminescent 4,4′-bicarbazole scaffold for facile construction of chiroptical probes》, the research content is summarized as follows. Small mols. with circularly polarized luminescence (CPL) are especially valuable in solution-based applications, like chiroptical probes for effective sensing. Such application was not well explored due in part to hard introduction of appropriate triggerable fluorophores. An easily post-modifiable CPL-active scaffold (4) is reported, and a feasible strategy to construct chiroptical probes for sensing hypochlorous acid is further proposed. Helically chiral 4 with a 4,4′-bicarbazole scaffold exhibits a large Stokes shift ≤142 nm and g_lum value of 0.9 × 10^-3. Through facile construction of phenothiazine moiety on 4, red-emitting compound 5 was obtained in high yield (85.3%), showing distinct optical and chiroptical responses towards hypochlorous acid with good liner relations and CPL sign blue-shifting of 120 nm in vitro. The probe is also applied to detect endogenous hypochlorous acid in living macrophages and can serve as a CPL sensor. Taking 5 as an application example, the authors envision that CPL-enabling scaffold 4 could find broad use in the design of more chiroptical probes.

Safety of Tetrafluoroterephthalonitrile, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles used to be known as cyanides; the smallest organic nitrile is ethanenitrile, CH3CN, (old name: methyl cyanide or acetonitrile – and sometimes now called ethanonitrile). 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds, including methyl cyanoacrylate, used in super glue, and nitrile rubber, a nitrile-containing polymer used in latex-free laboratory and medical gloves. HPLC of Formula: 1835-49-0.

Fan, Junmei;Qi, Lu;Qiao, Min;Gao, Zhipeng;Ding, Liping;Fang, Yu research published 《 A simple sensor ensemble-based chemical tongue for powerful fingerprint identification of multiple thiols and juice powder》, the research content is summarized as follows. A powerful discriminative sensor for identifying different thiols and their mixtures was developed. The sensor was easily constructed by using surfactant CTAB assemblies encapsulating two com. available fluorophores, namely, tetrafluoroterephthalonitrile (4F-2CN) and rhodamine B (RhB). UV-vis absorption and ESI-MS measurements revealed 4F-2CN can react with different thiols and yields different products with diverse absorption behaviors. Fluorescence measurements and control experiments showed that this single-system based sensor exhibits typical multiple-wavelength cross-reactive responses to multiple thiols, and RhB plays an important role in the process. This single sensor platform can not only distinguish 8 structurally similar thiols, but also differentiate their mixtures and be applied for identifying various com. juice powder of different brands or tastes and even com. available liquid juice of different tastes.

HPLC of Formula: 1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitrile is any organic compound with a −C≡N functional group. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile.The prefix cyano- is used interchangeably with the term nitrile in literature. Reference of 1835-49-0.

Fan, Shu-Ting;Tan, Min;Liu, Wen-Tao;Li, Bang-Jing;Zhang, Sheng research published 《 MOF-layer composite polyurethane membrane increasing both selectivity and permeability: Pushing commercial rubbery polymer membranes to be attractive for CO₂ separation》, the research content is summarized as follows. We demonstrated a novel MOF-layer composite membrane consisting of three layers, based on a polyurethane/PIM layer and a UiO-66-NH2 layer to sep. CO2/N2 mixture A small amount of PIM (i.e., ≤10 wt% PIM in PU) could completely dissolve in PU. After blending it with PU, it could use its own porosity to increase the CO2 permeability of the PU/PIM polymer blend layer. UIO66-NH2 was prepared into a 10μm thick MOF layer by spin coating. The densely packed MOF in this layer brings abundant adsorption sites to enrich CO2, thereby bringing high selectivity to the composite film. These unique two layers simultaneously increase permeability and CO2/N2 selectivity, and the PAN-UIO66-NH2-PU/PIM (10 wt%) composite membrane displayed a CO2 permeance of 333 Barrer and a CO2/N2 selectivity of 138, its performance can easily exceed the 2008 CO2/N2 upper bound. Moreover, the entanglement of its mol. chain with PIM slows down the aging, leading a more consistent selectivity performance over a sixty-day-ageing study period. This attractive separation performance of PAN-UIO66-NH2-PU/PIM provides an exciting platform for rubbery polymer membranes to economically sep. CO2 and makes com. PU an attractive option for large-scale industrial CO2 separation

1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , Reference of 1835-49-0

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Organic compounds containing multiple nitrile groups are known as cyanocarbons. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile. Nitriles are found in many useful compounds. One of the most common occurrences of nitriles is in Nitrile rubber. Formula: C8F4N2.

Feng, Xiaoquan;Peng, Donglai;Shan, Meixia;Niu, Xinpu;Zhang, Yatao research published 《 Facilitated propylene transport in mixed matrix membranes containing ZIF -8@Agmim core-shell hybrid material》, the research content is summarized as follows. The ZIF-8@Agmim core-shell hybrid material was synthesized via a favorable post-modification method of ion exchange (PMIE). This infrequent ZIF-8@Agmim core-shell structure maintains a well-integrated pore size that is almost the same as ZIF-8. The similar equilibrium isotherms with ZIF-8 and better kinetic separation toward propylene/propane than ZIF-8 render ZIF-8@Agmim to be an interesting candidate for propylene/propane separation The core-shell hybrid nanomaterial was further used as nanofillers in the polymer of intrinsic microporosity matrix (PIM-1) for propylene/propane separation The resultant mixed-matrix membranes (MMMs) exhibited a simultaneous increase in C₃H₆ permeability and C₃H₆/C₃H₈ ideal selectivity compared to pure polymer membrane owing to a synergistic effect of mol. sieving from ZIF-8 and π-complexation of Ag⁺ with propylene. The separation performance of the prepared MMM surpasses the upper bound line of polymer membranes. Furthermore, the hybrid materials possess superb photochem. stability and the corresponding MMMs exhibit excellent anti-aging property and long-term stability.

Formula: C8F4N2, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , 1835-49-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nitrile is any organic compound with a −C≡N functional group. 1835-49-0, formula is C8F4N2, Name is Tetrafluoroterephthalonitrile.The prefix cyano- is used interchangeably with the term nitrile in literature. Reference of 1835-49-0.

Corrado, Tanner J.;Huang, Zihan;Huang, Dezhao;Wamble, Noah;Luo, Tengfei;Guo, Ruilan research published 《 Pentiptycene-based ladder polymers with configurational free volume for enhanced gas separation performance and physical aging resistance》, the research content is summarized as follows. Polymers of intrinsic microporosity (PIMs) have shown promise in pushing the limits of gas separation membranes, recently redefining upper bounds for a variety of gas pair separations However, many of these membranes still suffer from reductions in permeability over time, removing the primary advantage of this class of polymer. In this work, a series of pentiptycene-based PIMs incorporated into copolymers with PIM-1 are examined to identify fundamental structure-property relationships between the configuration of the pentiptycene backbone and its accompanying linear or branched substituent group. The incorporation of pentiptycene provides a route to instill a more permanent, configuration-based free volume, resistant to phys. aging via traditional collapse of conformation-based free volume PPIM-i.p.-C and PPIM-np-S, copolymers with C- and S-shape backbones and branched isopropoxy and linear n-propoxy substituent groups, resp., each exhibited initial separation performance enhancements relative to PIM-1. Addnl., aging-enhanced gas permeabilities were observed, a stark departure from the typical permeability losses pure PIM-1 experiences with aging. Mixed-gas separation data showed enhanced CO2/CH4 selectivity relative to the pure-gas permeation results, with only ∼20% decreases in selectivity when moving from a CO2 partial pressure of ∼2.4 to ∼7.1 atm (atm. pressure) when utilizing a mixed-gas CO2/CH4 feed stream. These results highlight the potential of pentiptycene’s intrinsic, configurational free volume for simultaneously delivering size-sieving above the 2008 upper bound, along with exceptional resistance to phys. aging that often plagues high free volume PIMs.

1835-49-0, Tetrafluoroterephthalonitrile can react with alkyl grignard reagents to form 4-alkyltetraflurorobenzonitriles. It acts as a four electron donor ligand. Tetrafluoroterephthalonitrile can be used to synthesize polymers of intrinsic microporosity. It has been used to study UV rearranged polymers of teh PIM-1 type membrane for the efficient separation of H2 and CO2.
Tetrafluoroterephthalonitrile reacts with alkyl Grignard reagents to form corresponding 4-alkyltetrafluorobenzonitriles. Tetrafluoroterephthalonitrile acts as a four-electron donor ligand and forms tungsten(II)η 2-nitrile complexes.
Tetrafluoroterephthalonitrile is a hydroxyl group-containing organic chemical compound . It has been used in analytical chemistry as a reagent for the determination of peptide binding constants and disulfide bonds. Tetrafluoroterephthalonitrile binds to nucleophilic sites on proteins, such as the pim-1 protein, and can be used to transport other molecules across cell membranes. In addition, it has been used to produce polymers for use in analytical chemistry. This chemical is also able to bind with magnetic particles under constant pressure conditions, which makes it useful for optical sensor applications. , Reference of 1835-49-0

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts