Structure of 4,4′-dichlorobenzophenone:: Implications for low temperature transport of triplet excitations

被引：2
|
作者：
Mitkevich, VV [1 ]
Strzhemechny, MA [1 ]
Lirtsman, VG [1 ]
Avdeenko, AA [1 ]
机构：
[1] Natl Acad Sci Ukraine, Verkin Inst Low Temp Phys & Engn, UA-310164 Kharkov, Ukraine
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2001年 / 361卷
关键词：
4,4 '-dichlorobenzophenone; structure; phase transition; intrinsic defects; exciton traps;
D O I：
10.1080/10587250108025712
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
As inferred from our x-ray single-crystal diffraction data, the microscopic mechanism of the structural phase transition at 190 K in 4,4'-dichlorobenzophenone is such that certain structural imperfections must be inevitably present in the low-temperature phase. These defects can be the physical cause behind the shallow X-traps for triplet excitons. as observed in luminescence spectra.
引用
收藏
页码：19 / 24
页数：6
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