Zatsikha, Yuriy V. published the artcileDevelopment of a Class of Easily Scalable, Electron-Deficient, Core-Extended Benzo-Fused Azadipyrromethene Derivatives (“”MB-DIPY””), Product Details of C8H4N2, the main research area is benzofused azadipyrromethene derivative MBDIPY.
We have developed a new synthetic strategy for the preparation of a series of isoindolin-1-imines and isoindolin-1-ones from aromatic ketones and phthalonitrile. Self-condensation reactions of these isoindolin-1-imines led to the formation of a novel class of benzo-fused, highly electron-deficient core-extended azadipyrromethene chromophores (“”MB-DIPY””). The influence of temperature, catalyst, and the template ions on the self-condensation reaction rate, yield, and stereoselectivity was examined in detail. New chromophores (sodium, zinc, and metal-free compounds) were characterized by NMR, UV-vis, fluorescence, high-resolution mass spectroscopies, and in many cases, X-ray crystallog. Their redox properties were probed by electrochem. and spectroelectrochem. approaches that revealed the remarkable electron-accepting nature of the new systems. Stepwise one- and two-electron reduction of the new MB-DIPYs and their zinc complexes was investigated by spectroscopic and spectroelectrochem. methods. Both one- and two-electron reduced forms of all zinc complexes studied have strong absorption in the near-IR region up to â?200 nm. Unusual spectroscopic and electrochem. properties of these dyes were correlated with their electronic structures and excited-state natures predicted by d. functional theory (DFT) and time-dependent DFT calculations Despite some structural similarities with well-known aza-BODIPYs, the new MB-DIPYs differ remarkably from them in spectroscopic and redox properties.
Journal of Organic Chemistry published new progress about Crystal structure. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Product Details of C8H4N2.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts