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The nature of interactions of benzene with CF3I and CF3CH2I
被引:13
|作者:
Bujak, Maciej
[1
,2
,3
]
Stammler, Hans-Georg
[2
,3
]
Blomeyer, Sebastian
[2
,3
]
Mitzel, Norbert W.
[2
,3
]
机构:
[1] Univ Opole, Fac Chem, Oleska 48, PL-45052 Opole, Poland
[2] Univ Bielefeld, Lehrstuhl Anorgan Chem & Strukturchem, Fak Chem, Univ Str 25, D-33615 Bielefeld, Germany
[3] Univ Bielefeld, CM2, Fak Chem, Univ Str 25, D-33615 Bielefeld, Germany
关键词:
CRYSTAL-STRUCTURES;
HYDROGEN-BOND;
INTERMOLECULAR INTERACTIONS;
HALOGEN INTERACTIONS;
CLOSE PACKING;
BR;
STABILIZATION;
DISPERSION;
COMPLEXES;
CHEMISTRY;
D O I:
10.1039/c8cc08980a
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In situ grown crystals of CF3I and CF3CH2I are dominated by II and FF interactions. Their co-crystals with benzene, (CF3I)(2) C 6H6 and CF3CH2I C 6H6, contain two completely different sets of intermolecular interactions. (CF3I)(2) C 6H6 shows a unique halogen-bond type: above-the-bond C-IC6H6 interactions. CF3CH2I C 6H6 shows above-the-centre C-HC6H6 interactions. These interactions are electrostatically dominated type II halogen bonds between single halogenoalkane molecules and weaker dispersion dominated interactions between the co-crystal components. The observed preferences for benzene for the two binding partners match with calculated molecular electrostatic potentials.
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页码:175 / 178
页数:4
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