Structural versatility of anion-π interactions in halide salts with pentafluorophenyl substituted cations

被引:76
作者
Albrecht, Markus [1 ]
Wesselt, Claudia [1 ,2 ]
de Groot, Marita [1 ]
Rissanen, Kari [2 ]
Luechow, Arne [3 ]
机构
[1] Rhein Westfal TH Aachen, Inst Organ Chem, D-52074 Aachen, Germany
[2] Univ Jyvaskyla, Dept Chem, Nanosci Ctr, Jyvaskyla, Finland
[3] Rhein Westfal TH Aachen, Inst Chem Phys, D-52074 Aachen, Germany
关键词
D O I
10.1021/ja800219g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of pentafluorophenyl substituted ammonium, iminium, amidinium, and phosphonium halides are presented which show extensive anion-pi interactions. Hereby, the well-known anion-donor-pi-acceptor as well as "eta 6" anion-pi-complex type interactions are observed. The latter is supported by fixation of the anion on ton of the aromatic system through hydrogen bonding. This arrangement was investigated by theoretical methods showing a highly attractive anion-pi interaction. In addition an eta(2)-type coordination of the anions to only two C-atoms of the electron-deficient ring system is described.
引用
收藏
页码:4600 / +
页数:3
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