LASER-INDUCED ABSORPTION AND FLUORESCENCE STUDIES OF PHOTOCHROMIC SCHIFF-BASES

被引：105

作者：

KOWNACKI, K ^{[1
]}

MORDZINSKI, A ^{[1
]}

WILBRANDT, R ^{[1
]}

GRABOWSKA, A ^{[1
]}

机构：

[1] RISO NATL LAB,DEPT ENVIRONM SCI & TECHNOL,DK-4000 ROSKILDE,DENMARK

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 227卷 / 03期

关键词：

D O I：

10.1016/0009-2614(94)00826-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three photochromic Schiff bases: N-salicylideneaniline (SA), N-salicylidene-1-naphthylamine (SN), and N,N-bis-(salicylidene)-p-phenylenediamine (Bsp), were studied in acetonitrile by means of steady-state and time-resolved absorption and fluorescence spectroscopy, as well as semiempirical quantum chemical calculations. In all these molecules, the transient absorption and two-step laser-induced fluorescence spectra of long-lived transients are remarkably similar. The photochromic species is tentatively assigned to the non-hydrogen bonded form of the proton transfer reaction product with a considerable contribution of zwitterionic character.

引用

页码：270 / 276

页数：7

共 26 条

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