Publication Type Journal Article
Title Magnetic and Electrochemical Properties of a Heterobridged mu-Phenoxido-mu(1,1)-Azide Dinickel(II) Compound: A Unique Example Demonstrating the Bridge Distance Dependency of Exchange Integral
Authors Rajesh Koner Susanta Hazra Michel Fleck Arpita Jana C. Robert Lucas Sasankasekhar Mohanta
Groups
Journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Year 2009
Month November
Volume
Number 33
Pages 4982-4988
Abstract The synthesis, structure, magnetic and electrochemical properties of the heterobridged mu-phenoxido-mu(1,1)-azide dinickel-(II) compound [Ni-2(II)(HL1)(3)(mu-(1,1)-N-3)]center dot 3H(2)O (1) derived from the tetradentate Schiff base ligand N-(2-hydroxyethyl)-3-methoxysalicylaldimine (H2L1) are described. The title compound crystallizes in the triclinic system (space group P (1) over bar). Electrochemical analyses reveal that compound 1 exhibits two-step quasireversible couples in the reduction window with E-1/2 values of -1412 and -1762 mV. The variable-temperature (2-300 K) magnetic susceptibilities at 1 T of the title compound were measured. The interaction between the metal centres is weak ferromagnetic (J = 5.0 cm(-1), g = 2.23, D-1 = 29.2 cm(-1) and D-2 = 10.7 cm(-1)). Comparison of the exchange integral of 1 with that of the only reported mu-phenoxido-mu(1,1)-azide dinickel(II) compound results in the emergence of a unique example of the dependence of strength of magnetic exchange interaction on the metal-ligand bridge distance. ((C) Wiley-VCH Verlag GmbH \& Co. KGaA, 69451 Weinheim, Germany, 2009)
DOI http://dx.doi.org/10.1002/ejic.200900686
ISBN
Publisher
Book Title
ISSN 1434-1948
EISSN 1099-0682
Conference Name
Bibtex ID ISI:000272425600008
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