Premium
Synthesis and Characterization of New M‐Triazole Complexes (M = Co, Cu, Zn)
Author(s) -
Zhang YinLi,
Chen SanPing,
Gao ShengLi
Publication year - 2009
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.200801273
Subject(s) - moiety , chemistry , octahedron , cobalt , crystallography , supramolecular chemistry , triazole , hydrogen bond , ligand (biochemistry) , stereochemistry , molecule , copper , crystal structure , inorganic chemistry , organic chemistry , biochemistry , receptor
Three new complexes with the ligand 3,5‐diamino‐1,2,4‐triazole (Hdatrz), [Co 3 (μ 2 ‐Hdatrz) 6 (H 2 O) 6 ]·(NO 3 ) 8 ·4H 2 O ( 1 ), [Cu 3 (μ 2 ‐Hdatrz) 4 (μ 2 ‐Cl) 2 (H 2 O) 2 Cl 2 ]·Cl 2 ·4H 2 O·2C 2 H 5 OH ( 2 ) and {[Zn 2 (μ 2 ‐SO 4 ) (μ 3 ‐datrz) 2 ]·2H 2 O} n ( 3 ) have been synthesized and structurally characterized. Complex 1 has a linear trinuclear mixed‐valence cobalt structure with six neutral triazole ligands in the N(1), N(2)‐bridging mode. The central cobalt atom, Co(1), is coordinated to six nitrogen atoms (octahedral) whereas the terminal cobalt atom, Co(2), is coordinated to an N 3 O 3 moiety (octahedral). In complex 1 , the uudd cyclic water clusters, nitrate anions and the trimeric cations are linked to a supramolecular structure. Complex 2 features a linear trinuclear copper(II) core, with four N(1), N(2)‐bridging triazole ligands and two chlorido bridges. The central copper atom is coordinated to an N 4 Cl 2 moiety (octahedral) whereas the terminal copper is coordinated to an N 2 Cl 2 O moiety (square‐pyramidal). In complex 2 , tetrahedral hydrogen bonding interactions play an important role to form a supramolecular network. Complex 3 exhibits a polymeric structure, with N(1), N(2), N(4)‐bridging triazolate ligands and sulfate bridges, in which zinc is coordinated to an N 3 O moiety (tetrahedral). In complex 3 , water molecules and sulfate anions construct the sulfate‐water supramolecular chain with hydrogen bonding interactions. In addition, the complexes were investigated by elemental analyses, IR spectroscopic, and thermogravimetric measurements.