Synthesis of new 2-(4-vinyl-2H-chromen-2-ylidene)malononitrile-based chromophores
作者:K. S. Levchenko、D. Yu. Demin、P. A. Chicheva、K. A. Chudov、E. V. Zinov’ev、K. A. Lyssenko、A. N. Fakhrutdinov、G. E. Adamov、P. S. Shmelin、E. P. Grebennikov
DOI:10.1007/s11172-019-2613-1
日期:2019.9
An approach towards new 2-(4-vinyl-2H-chromen-2-ylidene)malononitriles-derived chromophores was developed. The optical, solvatochromic, and electrochemical properties of the synthesized compounds were studied. The first hyperpolarizability (β) was calculated using M06-2x functional with 6–31+G* basis set. The synthesized compounds absorb at a wide spectral range, from 350 to 770 nm. Divinylthiophene-bridged
开发了一种新的 2-(4-vinyl-2H-chromen-2-ylidene) 丙二腈衍生生色团的方法。研究了合成化合物的光学、溶剂致变色和电化学性质。第一个超极化率 (β) 使用具有 6–31+G* 基组的 M06-2x 泛函计算。合成的化合物在很宽的光谱范围内吸收,从 350 到 770 nm。具有最窄带隙 (1.78 eV)、强溶剂化变色效应和最高第一超极化值 (β = 47805) 的二乙烯基噻吩桥化合物被认为是合成发色团中最有前途的。