Buker, Nicholas; Firestone, Kimberly A.; Haller, Marnie; Purvis, Lafe; Lao, David; Snoeberger, Robert; Jen, Alex K.-Y.; Dalton, Larry R. published the artcile< Functionalized guanidines for electro-optic materials>, Computed Properties of 112-63-0, the main research area is guanidine imidazole benzimidazole preparation nonlinear optical chromophore; UV visible absorption hyperpolarizability guanidine containing nonlinear optical chromophore; functionalized guanidine electrooptical material.
Guanidines derived from imidazoles or benzimidazoles such as I are prepared as potential nonlinear optical chromophores. Condensation of 4-nitrobenzaldehyde with 4,5,5-trimethyl-3-cyano-2,5-dihydrofuranylidenemalononitrile, reduction of the nitro group, and substitution of 1,3-dimethyl-2-chloroimidazolidinium chloride by the aromatic amine yields I. Olefination of 3,4-dibutyl-2-thiophenecarboxaldehyde with di-Et 4-nitrophenylphosphonate, formylation of the thiophene ring, condensation with 4,5,5-trimethyl-3-cyano-2,5-dihydrofuranylidenemalononitrile, reduction of the nitro group, and reaction with either 1,3-dimethyl-2-chloroimidazolidinium chloride or 1,3-dimethyl-2-chlorobenzimidazolium chloride provides the thiophene-containing chromophores. I has both a lower UV-visible absorption wavelength maximum and a higher hyperpolarizability than the comparable chromophore lacking the guanidine; guanidine-containing chromophores with a divinylthiophene linker have decreased hyperpolarizabilities compared to the chromophore lacking the guanidine. Guanidine-containing chromophores are more stable to heat than the related diethylamino chromophores.
Materials Research Society Symposium Proceedings published new progress about Chromophores. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.
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