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Indenopyrans - synthesis and photoluminescence properties.

ABSTRACT: New indeno[1,2-c]pyran-3-ones bearing different substituents at the pyran moiety were synthesized and their photophysical properties were investigated. In solution all compounds were found to be blue emitters and the trans isomers exhibited significantly higher fluorescence quantum yields (relative to 9,10-diphenylanthracene) as compared to the corresponding cis isomers. The solid-state fluorescence spectra revealed an important red shift of ?max due to intermolecular interactions in the lattice, along with an emission-band broadening, as compared to the solution fluorescence spectra.

SUBMITTER: Diac AP

PROVIDER: S-EPMC4901902 | biostudies-other | 2016

REPOSITORIES: biostudies-other

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Indenopyrans - synthesis and photoluminescence properties.

Diac Andreea Petronela AP Ţepeş Ana-Maria AM Soran Albert A Grosu Ion I Terec Anamaria A Roncali Jean J Bogdan Elena E

Beilstein journal of organic chemistry 20160427

New indeno[1,2-c]pyran-3-ones bearing different substituents at the pyran moiety were synthesized and their photophysical properties were investigated. In solution all compounds were found to be blue emitters and the trans isomers exhibited significantly higher fluorescence quantum yields (relative to 9,10-diphenylanthracene) as compared to the corresponding cis isomers. The solid-state fluorescence spectra revealed an important red shift of λmax due to intermolecular interactions in the lattice ...[more]

PMID: 27340473

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