crystal engineering;
fluorine;
liquid crystals;
pi interactions;
supramolecular chemistry;
D O I:
10.1002/anie.200453828
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The πs have it: An unusual 2:1 areneperfluoroarene π complex is formed between 1,4-bis(phenylethynyl)benzene and its perfluorinated analogue, and this is the first example of a non-1:1 complex of this type. The interstack geometry (see picture; red H, green F) is also unusual, as is the complex mesomorphism of this system.