A novel polymer of a binuclear nickel(II) complex bridged by 1,3-diaminopropane: structure and magnetism

Asokan, Anbanandam ; Varghese, Babu ; Caneschi, Andrea ; Manoharan, Periakaruppan T. (1997) A novel polymer of a binuclear nickel(II) complex bridged by 1,3-diaminopropane: structure and magnetism Inorganic Chemistry, 37 (2). pp. 228-232. ISSN 0020-1669

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ic9711675?prev...

Related URL: http://dx.doi.org/10.1021/ic9711675

Abstract

A novel polymer of a binuclear nickel(II) complex of [Ni2L(μ -H2N-(CH2)3-NH2)2·(H2O)2]n·(ClO4)n·(H2O)n (where L = [2 + 2] condensation of 2,6-diformyl-4-methylphenol with 1,3-diaminopropane) has been synthesized and characterized. The crystal structure of the compound has been solved. The compound crystallizes in the monoclinic system, space group P21/a, with formula weight = 901.004, a = 13.918(2) Å, b = 18.111(3)Å , c = 16.079(2) Å, β = 103.46(3)°, and Z = 4. The interesting feature of this compound is the bridging behavior of 1,3-diaminopropane in an end-to-end fashion. Nickel atoms are placed in a distorted octahedral environment. The magnetic properties of the compound have been studied by means of susceptibility measurement vs temperature, which reveals a moderately strong intramolecular antiferromagnetic coupling (J) of -30 ± 4 cm-1 and a weak intermolecular ferromagnetic coupling (zJ') of 2 ± 1 cm-1.

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