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Synthesis and Structural Characterization of One‐Dimensional Cadmium(II) Coordination Polymers Containing Polydentate Nitrogen Ligands
Author(s) -
Suen MawCherng,
Wang JuChun
Publication year - 2008
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200800117
Subject(s) - chemistry , denticity , octahedron , crystallography , ligand (biochemistry) , metal , stereochemistry , coordination polymer , cadmium , coordination complex , bridging ligand , crystal structure , organic chemistry , receptor , biochemistry
The reactions of Cd(NO 3 ) 2 ·4H 2 O with NH 4 SCN and 2,4‐dpa (2,4‐dpa = 2,4‐dipyridineamine) in CH 3 OH afforded the one‐dimensional coordination polymer [Cd(NCS) 2 (2,4‐dpa) 2 ] n , 1 , while reaction of Cd(NO 3 ) 2 ·4H 2 O with NH 4 SCN and PmPa (PmPa = 2‐(1‐piperazinyl)pyrimidine) in CH 3 OH gave complex of the type [Cd(NCS) 2 (PmPa) 2 ] n , 2. Each of the 2,4‐dpa ligand in complex 1 is coordinated to the Cd 2+ metal center through pyridyl nitrogen atoms to form the one‐dimensional chain structures. The distorted {CdN4S2} octahedral coordination geometry around Cd 2+ center is completed by pairs of bidentate thiocyanato ligands. Complex 2 has the 1‐D arrangement constructed through one‐dimensional double μ(N,S) end‐to‐end bridging thiocyanato groups bridged Cd(II) chains interconnected through PmPa ligands.