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

被引：35
|
作者：
Toma, Oksana [1 ]
Mercier, Nicolas [1 ]
Allain, Magali [1 ]
Forni, Alessandra [2 ]
Meinardi, Francesco [3 ]
Botta, Chiara [4 ]
机构：
[1] CNRS, MOLTECH Anjou, UMR 6200, F-49045 Angers, France
[2] Univ Milan, Ist Sci & Tecnol Mol, Consiglio Nazl Ric ISTM CNR, I-20133 Milan, Italy
[3] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy
[4] CNR, Ist Studio Macromol ISMAC, I-20133 Milan, Italy
来源：
DALTON TRANSACTIONS | 2015年 / 44卷 / 33期
关键词：
2D; 4,4'-BIPYRIDINE-N,N'-DIOXIDE; N-OXIDE-4,4'-BIPYRIDINE; MECHANISM; PLATINUM; CRYSTALS; LIGAND;
D O I：
10.1039/c5dt01801c
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Unprecedented bismuth complexes, based on the rarely used ditopic ligand N-oxide-2,2'-bipyridine (bp2mo), crystallizing as three polymorphs, alpha- (1), beta- (2) and gamma-[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.
引用
收藏
页码：14589 / 14593
页数：5
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