QUANTUM YIELDS OF SINGLET-OXYGEN PRODUCTION BY SOME NATURAL QUINOID FUNGAL METABOLITES AND DERIVATIVES

被引：30

作者：

AMINIANSAGHAFI, T

NASINI, G

CARONNA, T

BRAUN, AM

OLIVEROS, E

机构：

[1] ECOLE POLYTECH FED LAUSANNE, INST CHIM PHYS, CH-1015 LAUSANNE, SWITZERLAND

[2] CNR, CTR STUDIO SOSTANZE NAT, I-20133 MILAN, ITALY

[3] POLITECN MILAN, DIPARTIMENTO CHIM, I-20133 MILAN, ITALY

来源：

HELVETICA CHIMICA ACTA | 1992年 / 75卷 / 02期

关键词：

D O I：

10.1002/hlca.19920750213

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perylene quinone compounds of natural and synthetic origin have been investigated for their quantum efficiency of singlet-oxygen production (PHI(DELTA)). The results may be interpreted by a qualitative relation between PHI(DELTA) and the planarity of the sensitizer molecules, highest values (0.8-0.9) being observed where planarity is favoring tautomeric structures. On the other hand, derivatives exhibiting non-planar quinoid structures show lower PHI(DELTA), and methylated derivatives react photochemically.

引用

页码：531 / 538

页数：8

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