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Issue 33, 2015
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Aggregation induced phosphorescent N-oxyde-2,2′-bipyridine bismuth complexes and polymorphism-dependent emission

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Abstract

Unprecedented bismuth complexes, based on the rarely used ditopic ligand N-oxide-2,2′-bipyridine (bp2mo), crystallizing as three polymorphs, α- (1), β- (2) and γ-[BiBr3(bp2mo)2] (3), exhibit phosphorescence with a quantum yield up to 17% for the crystal phase (1), while the complex displays a weak fluorescence in solution. A study of the luminescence properties combined with DFT/TDDFT calculations reveals that the lighting phenomenon originated by aggregation induced phosphorescence correlated with the weak intermolecular interactions present in the different crystal phases.

Graphical abstract: Aggregation induced phosphorescent N-oxyde-2,2′-bipyridine bismuth complexes and polymorphism-dependent emission

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Supplementary files

Article information


Submitted
13 May 2015
Accepted
17 Jul 2015
First published
20 Jul 2015

Dalton Trans., 2015,44, 14589-14593
Article type
Communication
Author version available

Aggregation induced phosphorescent N-oxyde-2,2′-bipyridine bismuth complexes and polymorphism-dependent emission

O. Toma, N. Mercier, M. Allain, A. Forni, F. Meinardi and C. Botta, Dalton Trans., 2015, 44, 14589
DOI: 10.1039/C5DT01801C

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