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Self‐Assembly of Frameworks with Specific Topologies: Construction and Anion Exchange Properties of M 3 L 2 Architectures by Tripodal Ligands and Silver( I ) Salts
Author(s) -
Sun WeiYin,
Fan Jian,
Okamura Takaaki,
Xie Jin,
Yu KaiBei,
Ueyama Norikazu
Publication year - 2001
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/1521-3765(20010618)7:12<2557::aid-chem25570>3.0.co;2-u
Subject(s) - supramolecular chemistry , chemistry , molecule , benzene , cage , crystal structure , ion , tris , crystallography , tripodal ligand , perchlorate , stereochemistry , combinatorial chemistry , organic chemistry , biochemistry , mathematics , combinatorics
Three five‐component architectures, compounds 3, 4 , and 5 were obtained by self‐assembly of tripodal 1,3,5‐tris(imidazol‐1‐ylmethyl)‐2,4,6‐trimethylbenzene ( 6 ) and 1,3,5‐tris(benzimidazol‐2‐ylmethyl)benzene ( 7 ) ligands with silver( I ) salts. The structures of these novel complexes have been determined by X‐ray crystallography. The results of structural analysis indicate that these frameworks have same M 3 L 2 components, but different structures. Compounds 3 and 4 are both M 3 L 2 type cage‐like complexes, while the 5 is an open trinuclear complex. The complex 3 is a cylindrical cage with simultaneous inclusion of a perchlorate anion inside of the cage as a guest molecule. Such guests can be exchanged for other anions through the open edge of the cage as evidenced by crystal structure of 4 . The results demonstrate that the molecular M 3 L 2 type cage can act as a host for anions and provide a nice example of supramolecular architectures with interesting properties and possible applications.