Mechanistic understanding of the photochromism of a hybrid dithienylethene-naphthopyran system by NMR spectroscopy
作者:S. Delbaere、J-C. Micheau、M. Frigoli、G. H. Mehl、G. Vermeersch
DOI:10.1002/poc.1188
日期:2007.11
Detailed 1H NMR kinetic investigations of the photochemical and thermal behaviour of a recently described poly-photochromic molecule including both dithienylethene and naphthopyran groups are reported. The combination of two photochromic moieties allows the selective controlled extension of the conjugated pi-electron system and the modulation of the absorption behaviour between ∼380 to ∼750 nm. It
报道了最近描述的包括二噻吩基乙烯和萘并吡喃基团的多光致变色分子的光化学和热行为的详细的1 H NMR动力学研究。两个光致变色部分的组合允许共轭pi电子系统的选择性控制扩展,以及在〜380至〜750 nm之间调节吸收行为。结果表明,两个光致变色实体是耦合的,并且不能独立运行。版权所有©2007 John Wiley&Sons,Ltd.