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Syntheses, Crystal Structures and Magnetic Properties of Two Nickel(II) Compounds with 4,4´- Bipyridine Ligands

Syntheses, Crystal Structures and Magnetic Properties of Two Nickel(II) Compounds with 4,4´-... Hydrothermal reactions of 4,4´-bipyridine, benzoic acid/p-methylbenzoic acid, Ni(NO3)2 · 6H2O and NH4OH yielded [Ni(bpy)1.5(H2O)2(BA)2]·H2O (1) and [Ni(bpy)(HMBA)(MBA)2]n (2) (bpy = 4,4´-bipyridine, HBA = benzoic acid, HMBA = p-methylbenzoic acid). The Ni(II) ions of compound 1 are six-coordinated and bridged by 4,4´-bipyridine ligands to form a binuclear structure while complex 2 features polymeric chains which are connected by 4,4´-bipyridine molecules. Variabletemperature magnetic susceptibility measurements from 300 to 30 K showed the presence of weak ferromagnetic interactions between the Ni(II) (S = 1) ions via the 4,4´-bipyridine bridges. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Zeitschrift für Naturforschung B de Gruyter

Syntheses, Crystal Structures and Magnetic Properties of Two Nickel(II) Compounds with 4,4´- Bipyridine Ligands

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Publisher
de Gruyter
Copyright
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
ISSN
0932-0776
eISSN
1865-7117
DOI
10.5560/znb.2014-3242
Publisher site
See Article on Publisher Site

Abstract

Hydrothermal reactions of 4,4´-bipyridine, benzoic acid/p-methylbenzoic acid, Ni(NO3)2 · 6H2O and NH4OH yielded [Ni(bpy)1.5(H2O)2(BA)2]·H2O (1) and [Ni(bpy)(HMBA)(MBA)2]n (2) (bpy = 4,4´-bipyridine, HBA = benzoic acid, HMBA = p-methylbenzoic acid). The Ni(II) ions of compound 1 are six-coordinated and bridged by 4,4´-bipyridine ligands to form a binuclear structure while complex 2 features polymeric chains which are connected by 4,4´-bipyridine molecules. Variabletemperature magnetic susceptibility measurements from 300 to 30 K showed the presence of weak ferromagnetic interactions between the Ni(II) (S = 1) ions via the 4,4´-bipyridine bridges.

Journal

Zeitschrift für Naturforschung B – de Gruyter

Published: Jan 1, 2014

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