OXIDATIVE-DEGRADATION OF ORGANIC PHOTOCHROMES

被引：37

作者：

MALATESTA, V

MILOSA, M

MILLINI, R

LANZINI, L

BORTOLUS, P

MONTI, S

机构：

[1] ENIRICERCHE SPA,I-20097 SAN DONATO MILANE,ITALY

[2] CNR,IST FRAE,I-40126 BOLOGNA,ITALY

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 246卷

关键词：

D O I：

10.1080/10587259408037833

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Photo-oxidation of some representative spiropyrans and spiro-oxazines does not seem to involve singlet oxygen O-2((1) Delta g). The photochromes rather behave, in the spiro and merocyanine form, as O-2((1) Delta g) quenchers. Only a methoxy-nitro benzopyran derivative was found to promote formation of singlet oxygen. Superoxide anion O-2(radical anion) is likely the activated oxygen species responsible for their oxidative photodegradation.

引用

页码：303 / 310

页数：8