Synthesis, characterization and structure of $[Ni(H_2O)_6]_2(Cr_2O_7)_2(hmta)_4·2H_2O$ (hmta=hexamethylenetetramine): a novel metal organic–inorganic hybrid

Dagur, Pritesh and Chopra, Deepak and Prakash, AS and Row, Guru TN and Hegde, MS (2005) Synthesis, characterization and structure of $[Ni(H_2O)_6]_2(Cr_2O_7)_2(hmta)_4·2H_2O$ (hmta=hexamethylenetetramine): a novel metal organic–inorganic hybrid. In: Journal of Crystal Growth, 275 (1-2). e2043-e2047.

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Abstract

A metal organic–inorganic hybrid compound $[Ni(H_2O)_6]_2(Cr_2O_7)_2(hmta)_4 2H_2O$ was prepared and characterized by single-crystal X-ray diffraction. The compound crystallizes in the monoclinic space group $P2_1/c$ with a = 7.976(5)A, b= 13.333(3)A, c= 14.070(3)A,\beta = 97.891(3); Z= 4 and R= 0.048. The structure consists of octahedrally coordinated nickel ions with water and discrete units of dichromate ions in which chromium is tetrahedrally coordinated. This inorganic moiety is well separated in the crystal structure from the organic moiety built by ‘‘hmta’’ ligands, resulting in the formation of a novel organic–inorganic framework.

Item Type:	Journal Article
Publication:	Journal of Crystal Growth
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	A1. Crystal structure; A1. Single-crystal growth; A1. X-ray diffraction; B1. Inorganic compounds; B1. Metals; B1. Organic compounds
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	09 Mar 2008
Last Modified:	19 Sep 2010 04:43
URI:	http://eprints.iisc.ac.in/id/eprint/13365

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