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