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Metal Cation Controlled Supramolecular Assembly of 1‐Butyl‐4,4′‐bipyridinium and Cucurbit[8]uril
Author(s) -
Xiao Xin,
Liu JingXin,
Chen Kai,
Zhu QianJiang,
Xue SaiFeng,
Tao Zhu
Publication year - 2010
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.201000020
Subject(s) - chemistry , supramolecular chemistry , moiety , aqueous solution , crystallography , metal , ligand (biochemistry) , crystal structure , stereochemistry , metal ions in aqueous solution , supramolecular assembly , organic chemistry , receptor , biochemistry
Abstract Three supramolecular assemblies [(C 14 H 17 N 2 ) 2 ⊂C 48 H 48 N 32 O 16 ]Cl 2 · 23H 2 O ( 1 ), {[C 14 H 17 N 2 Cu(H 2 O) 5 ] 2 ⊂C 48 H 48 N 32 O 16 }[(C 14 H 17 N 2 ) 2 ⊂C 48 H 48 N 32 O 16 ]Cl 4 (NO 3 ) 4 · 32H 2 O ( 2 ), and {[C 14 H 17 N 2 Ni(H 2 O) 5 ] 2 ⊂C 48 H 48 N 32 O 16 }[(C 14 H 17 N 2 ) 2 ⊂C 48 H 48 N 32 O 16 ]Cl 2 (NO 3 ) 6 · 22H 2 O ( 3 ) were synthesized in aqueous solution and characterized by X‐ray diffraction. The crystal structures of these supramolecular assemblies show that Q[8] can selectively encapsulate either the bipyridinium or butyl moiety of the 1‐butyl‐4,4′‐bipyridinium guest in its hydrophobic cavity to form ternary complexes through the influence of metal–ligand coordination. The main driving force of the selective formation of these supramolecular assemblies may be due to ion–dipole interactions.