Intramolecular charge transfer properties of dicyanovinyl-substituted aromatics was written by Katritzky, Alan R.;Zhu, Dong Wei;Schanze, Kirk S.. And the article was included in Journal of Physical Chemistry in 1991.Recommanded Product: 2-(Anthracen-9-ylmethylene)malononitrile This article mentions the following:
A series of five dicyanovinyl (DCV)-substituted aromatic compounds (referred to collectively as Ar-DCV, where Ar = 1-Ph, 1-naphthyl, 9-anthracenyl, 9-phenanthrenyl, and 1-pyrenyl) were prepared and their ground- and excited-state properties were examined Solvent-dependent NMR studies indicate that the ground state of the Ar-DCV compounds is polar. Strong intramol. charge transfer (ICT) absorption bands were observed for each compound The position of the ICT absorption is nearly independent of solvent polarity and the molar absorptivity is related to the twist angle between the aromatic donor and the DCV acceptor. The fluorescence spectra are highly solvatochromatic and the fluorescence energy correlates with the solvent polarity parameter Δf in a variety of solvents. The fluorescence quantum yields are low and no emission was observed from phenyl-DCV. An excited-state model is proposed which explains the solvent dependence of the ICT absorption and emission of the series of Ar-DCV compounds In the experiment, the researchers used many compounds, for example, 2-(Anthracen-9-ylmethylene)malononitrile (cas: 55490-87-4Recommanded Product: 2-(Anthracen-9-ylmethylene)malononitrile).
2-(Anthracen-9-ylmethylene)malononitrile (cas: 55490-87-4) belongs to nitriles. The electronic structure of nitriles is very similar to that of an alkyne with the main difference being the presence of a set of lone pair electrons on the nitrogen. Nitriles are susceptible to hydrogenation over diverse metal catalysts. The reaction can afford either the primary amine (RCH2NH2) or the tertiary amine ((RCH2)3N), depending on conditions.Recommanded Product: 2-(Anthracen-9-ylmethylene)malononitrile
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts