M. Osawa, M. Hoshino, T. Wada
Aug 31, 2006
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0
Influential Citations
5
Citations
Journal
Chemical Physics Letters
Abstract
Abstract 9-Diphenylphosphinophenanthrene in solutions at 298 K gives a broad ICT fluorescence spectrum centered at 510 nm in n -hexane. The origin of the ICT fluorescence is discussed on the basis of X-ray structure analysis, solvent effects on fluorescence, and MO calculations by contrast with 9-diphenylaminophenanthrene. The weak interaction between the non-bonding sp 3 orbital of the P atom and the π orbital of the phenanthrene moiety in the ground state is considered to promote the intramolecular charge transfer in the excited singlet state, leading to the ICT fluorescence.