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Three-dimensional 3d-4f heterometallic polymers containing both azide and carboxylate as co-ligands

Monda, Kartik Chandra and Sengupta, Oindrila and Dutta, Prasanta and Seehra, Mohindar and Nayak, Susanta Kumar and Mukherjee, Partha Sarathi (2009) Three-dimensional 3d-4f heterometallic polymers containing both azide and carboxylate as co-ligands. In: Inorganica Chimica Acta, 362 (6). pp. 1913-1917.

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The hydrothermal reaction of Ln(NO3)(3), Ni(NO3)(2), NaN3, and isonicotinic acid (L) yielded two novel 3-D coordination frameworks (1 and 2) of general formula [Ni(2)Ln(L)(5)(N-3)(2)(H2O)(3)] center dot 2H(2)O (Ln = Pr(III) for 1 and Nd(III) for 2), containing Ni-Pr or Ni-Nd hybrid extended three-dimensional networks containing both azido and carboxylate as co-ligands. Both the compounds are found to be isostructural and crystallize in monoclinic system having P2(1)/n space group. Here the lanthanide ions are found to be nonacoordinated. Both bidentate and monodentate modes of binding of the carboxylate with the lanthanides have been observed in the above complexes. Variable temperature magnetic studies of the above two complexes have been investigated in the temperature range 2-300 K which showed dominant antiferromagnetic interaction in both the cases and these experimental results are analyzed with the theoretical models. (c) 2008 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Lanthanides; Nickel;Coordination polymer;Heterometallic;Crystal structure.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Ali K S
Date Deposited: 01 Jan 2010 10:48
Last Modified: 19 Sep 2010 05:31
URI: http://eprints.iisc.ac.in/id/eprint/20018

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