Luminescence 2007-01-01

Singlet oxygen generation from lophine hydroperoxides.

M Kimura, G H Lu, H Nishigawa, Z Q Zhang, Z Z Hu

Index: Luminescence 22(2) , 72-6, (2007)

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Abstract

Singlet oxygen was detected from the reaction of lophine hydroperoxides 2 in the presence of 1,3-diphenyl-isobenzofuran as a singlet oxygen detector. In order to examine the substituent effect on the formation of (1)O(2), 2-(p-substituted phenyl) lophine peroxides 2a-c were tested. It was found that an electron-attracting group contributed to the efficient formation of (1)O(2) (80% for a NO(2) group), while an electron-donating group enhanced the efficiency of chemiluminescence.