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Photokinetic study on the photochromic reaction of Aberchrome 540TM: a further comment about the use of Aberchrome 540TM in chemical actinometry

1995; Elsevier BV; Volume: 88; Issue: 1 Linguagem: Inglês

10.1016/1010-6030(94)04027-y

1873-2666

Zhi‐Xin Guo, Guijun Wang, Yingwu Tang, Xinqi Song,

Neurobiology and Insect Physiology Research

The photochromic reaction of Aberchrome 540TM is studied using a photokinetic method. It is found that the photocyclization is accompanied by E↔Z isomerization. An equation is derived from photokinetic equations to describe the proportion of the light absorbed by the Z isomer to that absorbed by the E isomer. The value is 0.56 when the fulgide is irradiated after one cycle, which is the very reason why the irradiated solution should not be reused after bleaching.