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Helical Coordination Polymers Based on A Tripodal N‐donor Ligand
Author(s) -
Chen Yu,
Chi XiaoLin,
Xu YuCi,
Wang XiChi,
Xiao DongRong
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500680
Subject(s) - supramolecular chemistry , tripodal ligand , crystallography , ligand (biochemistry) , coordination polymer , imidazole , hydrogen bond , crystal structure , polymer , single crystal , chemistry , materials science , stereochemistry , topology (electrical circuits) , molecule , organic chemistry , receptor , biochemistry , mathematics , combinatorics
Abstract The coordination polymers [Cu 2 (tpim) 2 ] · 2H 2 O ( 1 ) and [Co(H 2 tpim) 2 (MoO 4 ) 2 ] ( 2 ) [Htpim = 2,4,5‐tri(4‐pyridyl)‐imidazole] were synthesized. Their structures were determined by single‐crystal X‐ray diffraction and further characterized by elemental analyses, IR spectroscopy, and TG analyses. Compounds 1 and 2 both contain chiral helical‐layer structures. Compound 1 exhibits a novel 3D (3,3,4)‐connected framework with (4 · 6 · 8)(6 · 8 2 )(4 · 6 · 8 3 · 10) topology, which is constructed from left‐ and right‐ helices. Compound 2 displays a 2D chiral helical‐layer structure which can be rationalized as a (3,6)‐connected 2D kgd (kagome dual) net, and these 2D layers are further extended by hydrogen‐bonding interactions to form a 3D supramolecular network. By comparing compounds 1 and 2 , it is believed that the tripodal N‐containing ligand (Htpim) plays a key role in the construction of helical coordination polymers. In addition, the photoluminescence property of compound 1 and the magnetic property of compound 2 were studied.