Premium
Coordination of Pentacyclohexanocucurbit[5]uril with Alkali Metal Ions and Supramolecular Self‐Assembly in the Absence and Presence of Inorganic Anions
Author(s) -
Hu JingXu,
Hu YingFeng,
Xiao Xin,
Zhang YunQian,
Tao Zhu,
Xue SaiFeng,
Liu JingXin,
Zhu QianJiang
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201300158
Subject(s) - chemistry , supramolecular chemistry , alkali metal , crystallography , crystal structure , inorganic chemistry , ion , alkyl , self assembly , metal , crystal engineering , organic chemistry
The coordination of pentacyclohexanocucurbit[5]uril (PCyHQ[5]) to alkali metal cations and the formation of supramolecular assemblies in the absence and presence of [CdCl 4 ] 2– or [ZnCl 4 ] 2– anions as inorganic structure inducers have been investigated by single‐crystal X‐ray diffraction analysis. Studies of the crystal structures have revealed that the [CdCl 4 ] 2– or [ZnCl 4 ] 2– anions do not form honeycomb structures owing to the presence of alkyl substituents on the surface of the outer walls of PCyHQ[5], which can seriously perturb the interaction of the anions with the outer walls. Moreover, in the presence of [ZnCl 4 ] 2– anions, the formation of a new Rb‐PCyHQ[5]‐based 2D six‐membered “bracelet” network suggests that larger ions such as Ba 2+ and even Ra 2+ could form this new type of supramolecular assembly.