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>First Singlethyphen;Singlet Electronic Transition in the Phenanthrene Molecule and the Band Structure of the Phenanthrene Crystal
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First Singlethyphen;Singlet Electronic Transition in the Phenanthrene Molecule and the Band Structure of the Phenanthrene Crystal
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机译:First Singlethyphen;Singlet Electronic Transition in the Phenanthrene Molecule and the Band Structure of the Phenanthrene Crystal
The absorption and emission spectra of single crystals of phenanthrene have been studied at 20deg;K. The data show that the transition moment in the molecule is shorthyphen;axis polarized, and that the factor group splitting in the crystal is 47 cmmdash;1. The emission originates in a region of very weak absorption at a frequency below the main absorption in analogy to several other molecular crystals whose spectra have been studied. It is suggested that the emitting level corresponds to a distorted lattice site.
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