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FORMATION OF INTRAMOLECULAR EXCIMER IN ARYL PHOSPHATES AND THEIR REACTIVITIES
Author(s) -
Okamoto Yoshiki,
Nakamura Mitsunobu,
And Min Shi,
Takamuku Setsuo
Publication year - 1992
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1992.tb02178.x
Subject(s) - intramolecular force , excimer , chemistry , photochemistry , quantum yield , aryl , fluorescence , monomer , stereochemistry , organic chemistry , alkyl , optics , physics , polymer
— The fluorescence spectra of bis(4‐methoxyphenyl) hydrogen phosphate and tris(4‐meth‐oxyphenyl) phosphate showed two emission bands. A longwavelength emission band arose from the intramolecular excimer of two 4‐methoxyphenyl groups and a short band arose from a 4‐methoxyphenyl group itself. There was a good correlation between the relative intensity of the monomer/excimer emissions and the quantum yield of 4,4′‐dimethoxybiphenyl, which was an intramolecular coupling product.