1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1)

被引：1
|
作者：
Arman, Hadi D. [2 ]
Kaulgud, Trupta [2 ]
Tiekink, Edward R. T. [1 ]
机构：
[1] Univ Malaya, Dept Chem, Kuala Lumpur 50603, Malaysia
[2] Univ Texas San Antonio, Dept Chem, San Antonio, TX 78249 USA
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2010年 / 66卷
关键词：
ACID;
D O I：
10.1107/S1600536810041668
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The components of the title 1:1 co-crystal, C14H10N4 center dot C6F4I2, are connected via an N center dot center dot center dot I [2.959 (4) angstrom] halogen bond, in which the N atom is part of the relatively electron-rich pyrazine ring. The C6F4I2 molecule is almost planar [r.m.s. deviation = 0.038 angstrom] but there are significant twists in the pyrazine derivative, as seen in the dihedral angles [31.3 (2) and 54.6 (2)degrees] formed between the pendant pyridyl rings and the central pyrazine ring. The bimolecular aggregates are sustained in the crystal by C-H center dot center dot center dot F and pi-pi interactions [ring centroid(pyridyl)-ring centroid(benzene) = 3.678 (3) angstrom].
引用
收藏
页码：O2885 / U808
页数：12
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