Ferromagnetic coupling in two chain-like nickel(II) tricyanomethanide complexes with polyamines as co-ligands

Two novel ferromagnetic nickel(II) tricyanomethanide complexes {[Ni(tmeda)(tcm)(H 2O)](tcm)} n ( 1) and [Ni(dien)(tcm) 2] n ( 2) (tmeda = tetramethylethylenediamine, dien = diethylenetriamine and tcm = tricyanomethanide) have been synthesized and structurally characterized. Two new chain-like nickel...

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Bibliographic Details
Published in:Inorganic chemistry communications 2006-02, Vol.9 (2), p.196-200
Main Authors: Luo, Jun, Shao, Ze-Huai, Gao, En-Qing, Wang, Chuan-Feng, Cai, Rui-Fang, Zhou, Xi-Geng
Format: Article
Language:English
Subjects:
Coordination polymer
Crystal structures
Ferromagnetic coupling
Nickel(II) complex
Polyamines
Tricyanomethanide
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Summary:Two novel ferromagnetic nickel(II) tricyanomethanide complexes {[Ni(tmeda)(tcm)(H 2O)](tcm)} n ( 1) and [Ni(dien)(tcm) 2] n ( 2) (tmeda = tetramethylethylenediamine, dien = diethylenetriamine and tcm = tricyanomethanide) have been synthesized and structurally characterized. Two new chain-like nickel(II) tricyanomethanide complexes {[Ni(tmeda)(tcm)(H 2O)](tcm)} n ( 1) and [Ni(dien)(tcm) 2] n ( 2) (tmeda = tetramethylethylenediamine, dien = diethylenetriamine, tcm = tricyanomethanide) have been synthesized and characterized by single crystal X-ray diffraction. Magnetic studies indicate that there are ferromagnetic couplings between adjacent Ni II ions in 1 ( θ = 7.3 K, C = 0.96 cm 3 mol −1 K) and 2 ( θ = 1.9 K, C = 1.07 cm 3 mol −1 K), respectively.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2005.10.031