PROTON-TRANSFER ALONG THE INTERNAL HYDROGEN-BONDS IN EXCITED SCHIFF-BASES - PHOTOCHROMISM IN SYMMETRICAL SYSTEMS WITH 2 EQUIVALENT REACTION SITES

被引：44

作者：

GRABOWSKA, A ^{[1
]}

KOWNACKI, K ^{[1
]}

KACZMAREK, L ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST ORGAN CHEM,PL-01224 WARSAW,POLAND

来源：

JOURNAL OF LUMINESCENCE | 1994年 / 60-1卷

关键词：

D O I：

10.1016/0022-2313(94)90304-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photophysics (phototautomeric fluorescence, transient absorption) and quantum-chemical study (Molecular Mechanics, INDO/S) of the photochromic Schiff bases - derivatives of salicylideneaniline - were reported. It was shown that in molecules with two equivalent internal H-bonds only one proton is translocated to create the monoketo-tautomer with a zwitterionic character. In contrast, the same molecule in the ground state has a strong tendency to remain symmetric.

引用

页码：886 / 890

页数：5

共 7 条

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