Importance of O•••N interaction between nitro groups in crystals

被引:54
作者
Daszkiewicz, Marek [1 ]
机构
[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源
CRYSTENGCOMM | 2013年 / 15卷 / 48期
关键词
ORTHOGONAL DIPOLAR INTERACTIONS; INTERMOLECULAR INTERACTIONS; ORGANIC FLUORINE; X-RAY;
D O I
10.1039/c3ce41788c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Perpendicular arrangement of two nitro groups of adjacent molecules was found in 104 structural fragments deposited in the Cambridge Structural Database. In the most cases, this non-hydrogen bonding O-NO2 center dot center dot center dot pi(N)NO2 interaction is shorter than 3 angstrom. Ab initio calculations of the interaction energy indicates the attractive nature of this interaction, comparable to the E-int of C-H center dot center dot center dot O.
引用
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页码:10427 / 10430
页数:4
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