Cooperative effects of hydrogen, halogen and beryllium bonds on model halogen-bonded FCl ... YZ (YZ = BF, CO, N2) complexes in FX′ ... FCl ... YZ trimers (FX′ = FH, FCl, F2Be)

被引:11
作者
McDowell, Sean A. C. [1 ]
Hamilton, Dania S. [1 ]
机构
[1] Univ W Indies, Dept Biol & Chem Sci, Wanstead, Barbados
关键词
halogen bond; cooperativity; hydrogen bond; beryllium bond;
D O I
10.1080/00268976.2015.1027755
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A computational study of model halogen-bonded FCl horizontal ellipsis YZ dimers and FX ' horizontal ellipsis FCl horizontal ellipsis YZ (FX ' = FH, FCl, F2Be; YZ = BF, CO, N-2) trimers was undertaken at the MP2/6-311++G (2d, 2p) level of theory. Three different trimer arrangements are possible and the cooperative effect of hydrogen-, halogen- and beryllium-bonding in each of these trimers was assessed relative to the FCl horizontal ellipsis YZ dimer. It was found that the beryllium bond has the largest cooperative effect, while the halogen bond has the smallest, with the hydrogen bond being intermediate between the other two interactions. Interesting trends in selected properties were identified and discussed.
引用
收藏
页码:1991 / 1997
页数:7
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