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Crystal Structure and Host‐Guest Binding Ability of Three Types of Pillar[5]arenes
Author(s) -
Liu Luzhi,
Duan Wengui,
Kou Yuhui,
Wang Lingyun,
Meier Herbert,
Cao Derong
Publication year - 2015
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201400879
Subject(s) - pillar , chemistry , crystallography , crystal structure , characterization (materials science) , type (biology) , molecule , stereochemistry , host (biology) , computational chemistry , nanotechnology , organic chemistry , structural engineering , engineering , biology , ecology , materials science
A systematic research of the structural characterization and the host‐guest binding abilities between three types of pillar[5]arenes 3 – 5 ( 3 for Structure Type I, 4 for Structure Type II and 5 for Structure Type III) is carried out by 1 H NMR measurements and X‐ray study. The results show that the configurations or symmetry of their cavities not only have large difference in these three types of pillar[5]arenes, but also have more or less variations even in the same structure type or the same host locked different guests such as crystals of 3a–3b , 4a–4d . On the other hand, the complexation behavior of pillar[5]arenes with 1,4‐dibromobutane (DBB) is affected by the different symmetrical structure or substituents on the rings.