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Two new Ni-II complexes with mu(1.5)-dicyanamide as bridging ligand

Konar, S., Dalai, S., Mukherjee, P.S., Drew, M.G.B., Ribas, J. and Chaudhuri, N.R. (2005) Two new Ni-II complexes with mu(1.5)-dicyanamide as bridging ligand. Inorganica Chimica Acta, 358 (4). pp. 957-963. ISSN 0020-1693

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To link to this item DOI: 10.1016/j.ica.2004.11.043

Abstract/Summary

One 3D and one 2D mu(1,5)-dicyanamide bridged Ni-II complexes having molecular formula [Ni(L1)(dca)(2)] (1) and [Ni-2(L-2)(2)(dca)(4)] (.) 0.5H(2)O (2) (L1 = 4-(2-aminoethyl)-morpholine, L2 = 1-(2-aminoethyl)-piperidine and dca = dicyanamide dianion) have been synthesized. X-ray single crystal analyses and low temperature magnetic measurements were used to characterize the complexes. Complex 1 represents a 3D structure where each metal ion is chelated by morpholine ligand (L1) and connected by four mu(1,5)-dca. Whereas complex 2 shows an undulated 2D structure with grid of (4,4) topology having two crystallographically independent Ni-II centers in similar octahedral environment where each metal center is chelated by one piperidine ligand (L2) and coordinated by four mu(1,5)-dca. Magnetic measurements of both the complexes indicate weak antiferromagnetic interactions through the mu-(1,5)-dca bridging ligands. (c) 2004 Elsevier B.V. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11400
Uncontrolled Keywords:Ni(II), dicyanamide, crystal structure, magnetic study , MAGNETIC-PROPERTIES, CRYSTAL-STRUCTURE, 3-D NETWORK, COORDINATION POLYMERS, MOLECULAR MATERIAL, DICYANAMIDE, CO, DCA, NICKEL(II), 1-D

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