Category: 91-15-6

Zatsikha, Yuriy V. published the artcileEnvironmentally Benign Route for Scalable Preparation of 1-Imino-3-thioisoindolines-The Key Building Blocks for the Synthesis of Dithio- and Diamino-β-isoindigo Derivatives, COA of Formula: C8H4N2, the main research area is imino thioisoindoline synthesis; dithio diamino beta isoindigo derivative synthesis.

A one-step, gram-scale protocol for the preparation of 1-imino-3-thioisoindolines and a novel one-pot two-step methodol. of the synthesis of dithio- or diamino-β-isoindigo derivatives starting from phthalonitriles and sodium hydrosulfide in an aprotic dipolar solvent have been developed. It was demonstrated that the electronic properties of the substituent(s) in the phthalonitrile core play a critical role in β-isoindigo synthesis resulting either in the selective formation of dithio- or diamino-β-isoindigo chromophores. The N-acylated 1-imino-3-thioisoindolines can be used for the direct, easily scalable, and chromatog.-free procedure for the preparation of a new class of N,N’-diacylamino-β-isoindigoid compounds Properties of the monomeric as well as J-aggregated forms of dithio- and diamino-β-isoindigo were probed by the absorption and fluorescence spectroscopies. It was demonstrated that the tetracyano-diamino-β-isoindigo 3f can form a J-aggregate that absorbs at 793 nm and fluoresces at 824 nm. This aggregate is stable in N,N-dimethylformamide solution; however, it slowly dissociates in THF or under sonication conditions. D. functional theory (DFT) and time-dependent DFT (TDDFT) calculations were employed to elucidate the electronic structures, spectroscopic properties, and aggregation of new dithio- and diamino-β-isoindigo derivatives

Journal of Organic Chemistry published new progress about Cyclization. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, COA of Formula: C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Olgun, Ugursoy published the artcileNano-gold-based synthesis, characterization and band gap energies of gold(III)-2(3)-tetrakis(allyloxy)-substituted phthalocyanine and gold(III)-phthalocyanine dyes, Quality Control of 91-15-6, the main research area is gold tetrakis allyloxy phthalocyanine band gap oxidation.

In this study, we have attempted to synthesize Au (III)-phthalocyanine (Au-Pc) and Au (III)-2 (3)-tetrakis (allyloxy) phthalocyanine (Au-AoPc) by using phthalonitrile (Pn), 3 allyloxy-substituted phthalonitrile (Ao-Pn) and gold nanoparticles (AuNPs) as the starting materials. The N,N′-dimethyl amino ethanol (DMAE)-stabilized AuNPs were prepared from the HAuCl4 solution The purple color AuNPs were obtained by the reduction of HAuCl4 solution by the addition of DMAE and adjusting pH 6-7 at room temperature Then, the blue color Au-Pc and the green color Au-AoPc dye materials were synthesized at 120 °C temperature by the reactions of the AuNPs with Pn and AoPn. The obtained AuNPs, Au-Pc and Au-AoPc complexes were characterized using optical microscopy, transmission electron microscopy (TEM), UV-Vis absorption, FT-IR and electrospray ionization-mass spectrometry. The TEM anal. results showed that the sizes of AuNPs were mostly 30-40 nm and distributed within the range of 10-100 nm. By using the Tauc method, the optical band gap energies (Eg) were calculated as 1.66 eV for the Q-band and 3.12 eV for the B-band of the Au-Pc, and as 1.79 eV for the Q-band and 3.32 eV for the B-band of the Au-AoPc. The DMAE-stabilized AuNPs, the Au-Pc and the soluble Au-AoPc dyes with low band gap energy can be utilized for various technologies in electronics, imaging, sensors and solar cells.

Journal of Materials Science: Materials in Electronics published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Bhatia, Harsh published the artcileAsymmetric-donor (D2D2)-acceptor (A) conjugates for simultaneously accessing intrinsic blue-RTP and blue-TADF, Formula: C8H4N2, the main research area is donor acceptor photoluminescent room temperature phosphorescence.

The development of new photoluminescent (PL) materials with simultaneous room-temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) features is highly desirable for bio-imaging, security applications and sensors due to the involvement of both singlet and longer-lived triplet states. Here, we report two carbazolyl-phenoxy-phthalonitrile conjugates (CPPN, CPPNF). Spectroscopic studies combining two daughter compounds (PPN, PPNF) in polar and nonpolar hosts confirmed efficient blue-RTP from the higher-energy triplet state (TPPN) due to the phenoxy-phthalonitrile (PPN) part, and blue-TADF via reverse intersystem crossing from the low-lying triplet state (TCzPN) of the carbazolyl-phthalonitrile (CzPN) part to the singlet (S1) state of the same CzPN part, utilizing the TPPN state that acts as an intermediate for spin-vibronic coupling. Such PL characteristics are observed due to the energetic proximity of 3LEPPN, 1CTCzPN and 3CTCzPN. In the hydrogen-bonded matrix and crystals, we found faint persistent green-RTP characteristics of the PPNF due to supramol. interactions and aggregation of the mol. This study could pave the way to understanding the involvement of different excited states associated with TADF and RTP processes of asym.-donor-acceptor systems.

Materials Advances published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Formula: C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wang, Wenzhi published the artcileMethoxypolyethylene Glycol-Substituted Zinc Phthalocyanines for Multiple Tumor-Selective Fluorescence Imaging and Photodynamic Therapy, Computed Properties of 91-15-6, the main research area is photodynamic therapy fluorescence imaging pharmacokinetics.

Highly tumor-tissue-selective drugs are a prerequisite for accurate diagnosis and efficient photodynamic therapy (PDT) of tumors, but the currently used fluorescent dyes and photosensitizers generally lack the ability for high accumulation and precise localization in tumor tissues. Here we report that monomethoxy polyethylene glycol (MPEG)-modified zinc phthalocyanine (ZnPc) can be selectively accumulated in multiple tumor tissues, and that the selectivity is controlled by the chain length of MPEG. MPEG-monosubstituted ZnPcs with different chain lengths were synthesized, among which the shorter chain (mw < 2k)-modified ZnPc did not show tumor tissue selectivity, while MPEG2k-5k-substituted ZnPc could be rapidly and selectively accumulated in H22 tumor tissues in mice after i.v. injection. Especially, MPEG4k-Pc showed the best tumor tissue selectivity with a tumor/liver (T/L) ratio of 1.7-2.2 in HepG2, MDA-MB231, AGS, and HT-29 tumor-bearing mice. It also exhibited potent photodynamic therapy effects after one PDT treatment, and tumor growth was significantly inhibited in H22-bearing mice with an inhibition rate over 98% and no obvious toxicity. Consequently, MPEG-modified ZnPc could serve as a potential platform for selective fluorescence imaging and photodynamic therapy of multiple tumors. Biomacromolecules published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Computed Properties of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Ishikawa, Yuta published the artcileRed-light-activatable ruthenium phthalocyanine catalysts, Name: Phthalonitrile, the main research area is ruthenium phthalocyanine red light activatable catalyst.

Phthalocyanine ruthenium complexes were identified as red-light activatable catalysts for trifluoromethylation reactions. The red-light mediated chlorotrifluoromethylation of alkenes could proceed without any sacrificial reducing reagents. This reaction exhibited good compatibility with a blue-light-absorbing substrate, while under irradation with blue light, i.e., under traditional photoreaction conditions, this substrate decomposed completely.

Chemical Communications (Cambridge, United Kingdom) published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Name: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Abdelhameed, Reda M. published the artcileBoosting the photocatalytic activity of Ti-MOF via emerging with metal phthalocyanine to degrade hazard textile pigments, Safety of Phthalonitrile, the main research area is metal phthalocyanine titanium photocatalytic activity textile pigment.

Metal-organic frameworks (MOFs) have shown a great potential for producing efficient and eco-friendly photocatalysts. Furthermore, phthalocyanines (PCs) are promising materials in photocatalytic reactions because of their unique adsorption and photosensitizing properties. Here, three phthalocyanines (Pcs) derivatives with Al3+ and Co2+ ions as the central metal were prepared to attach them to the MOFs matrix. The photocatalytic decay performance of methylene blue (MB) and methyl orange (MO) and their mixtures were investigated under visible light illumination. The photocatalyst NH2-MIL-125, Al-PcCl@NH2-MIL-125, CoPc@NH2-MIL-125, and CoPcPA@NH2-MIL-125 show 0.01, 0.012, 0.035, and 0.046 min-1 MB degradation rate, resp., while, the degradation rates of MO were 0.021, 0.027, 0.052 and 0.082, resp. Amazingly, the degradation rates of MB in presence of MO showed boosted photocatalytic decomposition with the degradation rate of 0.066, 0.069, 0.085, and 0.120 min-1, resp. This study illustrates a high performance for utilizing porous MOF-based materials not only as supports but as electron acceptors that enhance both photostability and photocatalytic activity.

Journal of Alloys and Compounds published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Gounden, Denisha published the artcileMetallophthalocyanines in a ternary photoactive layer (P3HT:MPc:PC70BM) for bulk heterojunction solar cells, Synthetic Route of 91-15-6, the main research area is metallophthalocyanine PHT PCBM bulk heterojunction solar cell.

Novel bulk heterojunction (BHJ) organic photovoltaic (OPV) solar cells have been fabricated by introducing a series of metallophthalocyanines (MPcs) into a blend of a poly(3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-Ph C70 butyric acid Me ester (PC70BM) photoactive layer. Sixteen MPcs have been synthesized with due consideration of the metal type and valency, functionalised ligand moieties and their resp. mol. energy levels. The MPcs were expected to act as an electron cascade material that improves the photovoltaic performance in a two-fold manner: first, to provide an efficient energy level offset between the polymeric donor (P3HT) and the fullerene-based derivative acceptor (PC70BM) to enhance charge transfer and reduce recombination within the OPV solar cells, and second, to harvest a greater portion of the solar spectrum as MPcs are associated with absorption near the near-IR region. BHJ OSCs were fabricated in the following inverted configuration: ITO/TiO2/P3HT:MPc:PC70BM/WO3/Ag and were investigated for their optimum photovoltaic performance. The BHJ OSCs comprising P3HT, PC70BM and the manganese MPc (MnPc) series photoactive layer displayed the best PCEs in the range of 2.36-2.62% which were approx. 47.5-63.7% higher than those of the binary reference BHJ OSCs.

Materials Advances published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Synthetic Route of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Saiful, Islam published the artcileLigand Rotation Induced Oxidation State Change and Spin Appearance of the Bis(phthalocyaninato)cerium (CePc2) Molecule on the Au(111) Surface, Quality Control of 91-15-6, the main research area is phthalocyaninatocerium gold surface structure mol rotation.

We demonstrate that a nonmagnetic mol. is changed into magnetic when its internal structure is rotated by forming an ordered film on a metal surface. We used a double-decker complex, bis(phthalocyaninato)cerium (CePc2), where the valence of the Ce atom changes between +3 and +4 with a small energy barrier. CePc2 is nonmagnetic in bulk and becomes magnetic in the monolayer film on Au(111). The intra-mol. structure and the magnetic property are revealed using scanning tunneling microscopy/spectroscopy. We attribute the mechanism to a change of the rotational angle (θ) between the upper and lower Pc ligands, driven by the steric repulsive force originating from forming an almost square lattice on Au(111). The θ changes from θ = 45° of the bulk value into θ = 0° for the film. GGA + U calculation indicates that the change from θ = 45° to θ = 0° causes the Ce valence change from the nonmagnetic +4 state into the magnetic +3 state.

Journal of Physical Chemistry C published new progress about Force, steric. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Zhou, He-Ye published the artcileA Calix[3]acridan-Based Host-Guest Cocrystal Exhibiting Efficient Thermally Activated Delayed Fluorescence, Application of Phthalonitrile, the main research area is thermally activated delayed fluorescence; Charge Transfer; Cocrystal; Host-Guest Interactions; Macrocycles; Thermally Activated Delayed Fluorescence.

A supramol. strategy to construct thermally activated delayed fluorescence (TADF) materials through host-guest charge transfer interactions was proposed. Consequently, a new class of macrocycle namely calix[3]acridan was conveniently synthesized in 90% yield. The host-guest cocrystal formed by calix[3]acridan and 1,2-dicyanobenzene exhibited efficient TADF properties due to intense intermol. charge transfer interactions. Moreover, the spatially separated HOMO and LUMO resulted in a very small singlet-triplet energy gap of 0.014 eV and hence guaranteed an efficient reverse intersystem crossing for TADF. Especially, a high photoluminescence quantum yield of 70% was achieved, and it represents the highest value among the reported intermol. donor-acceptor TADF materials.

Angewandte Chemie, International Edition published new progress about Absorptivity. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Acharyya, Shankha S. published the artcileUnprecedented Catalysis of Cs+ Single Sites Confined in Y Zeolite Pores for Selective Csp3-H Bond Ammoxidation: Transformation of Inactive Cs+ Ions with a Noble Gas Electronic Structure to Active Cs+ Single Sites, Quality Control of 91-15-6, the main research area is Catalysis Cs Single Sites Confined Y Zeolite Pores; ammoxidation toluene benzonitrile with O2 NH3 DFT.

We report the transformation of Cs+ ions with an inactive noble gas electronic structure to active Cs+ single sites chem. confined in Y zeolite pores (Cs+/Y), which provides an unprecedented catalysis for oxidative cyanation (ammoxidation) of Csp3-H bonds with O2 and NH3, although in general, alkali and alk. earth metal ions without a moderate redox property cannot activate Csp3-H bonds. The Cs+/Y catalyst was proved to be highly efficient in the synthesis of aromatic nitriles with yields >90% in the selective ammoxidation of toluene and its derivatives as test reactions. The mechanisms for the genesis of active Cs+ single sites and the ammoxidation pathway of Csp3-H bonds were rationalized by d. functional theory (DFT) simulations. The chem. confinement of large-sized Cs+ ions with the pore architecture of a Y zeolite supercage rendered the HOMO (HOMO)-LUMO (LUMO) gap reduction, HOMO component change, and preferable coordination arrangement for the selective reaction promotion, which provides a trimol. assembly platform to enable the coordination-promoted concerted ammoxidation pathway working closely on each Cs+ single site. The new reaction pathway without involvement of O2-dissociated O atom and lattice oxygen differs from the traditional redox catalysis mechanisms for the selective ammoxidation

ACS Catalysis published new progress about Ammoxidation. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts