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Three-dimensional supramolecular H-bonding network in the compounds containing hexamethylenetetramine and aquated Ni(II) or Cd(II) salts

Banerjee, Suparna and Choudhury, Angshuman Roy and Row, Guru TN and Chaudhuri, Siddhartha and Ghosh, Ashutosh (2007) Three-dimensional supramolecular H-bonding network in the compounds containing hexamethylenetetramine and aquated Ni(II) or Cd(II) salts. In: Polyhedron, 26 (1). pp. 24-32.

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Abstract

To investigate the interactions between hydrogen bond donor and acceptor giving rise to three dimensional networks, compounds $[Ni(H_2O)_6](ClO_4)_2 . 2\{(CH_2)_6N_4\} . 2H_2O (1)$, $[Ni(H_2O)_6]Cl_2 .2\{(CH_2)_6N_4\}.4H_2O (2)$ and $[Cd(H_2O)_4\{(CH_2)_6N_4\}_2](ClO_4)_2. 2H_2O(3)$ (where $(CH_2)_6N_4$ = hexamethylenetetramine) have been prepared and their crystal structures were investigated. In all three complexes, the metal coordination is octahedral. The hexamine molecules are complexed in the cadmium compound, 3 but are free in the nickel salts,1 and 2. The supramolecular structures of 1 and 2 show $R^4_4(16)$ motif linking the cationic moieties with hexamine which are in turn interwoven with anionic moieties via water molecules. In contrast the supramolecular structure of 3 shows $R^2_2(12)$ motif.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Crystal structure;Nickel(II);Cadmium(II);Hexamethylenetetramine; H-bonding;
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 27 Mar 2007
Last Modified: 19 Sep 2010 04:36
URI: http://eprints.iisc.ernet.in/id/eprint/10220

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