Bimetallic complex of the type [Cu(tren)(NCS)]4[Mn(NCS) 6]: A hydrogen bonded network structure

Doyel Bose, Golam Mostafa, Rosa D. Bailey Walsh, Michael J. Zaworotko, Barindra K. Ghosh

Research output: Contribution to journalArticlepeer-review

Abstract

MnCl2 • 4H2O, Cu(NO3)2 • 3H2O, tris(2-aminoethyl)amine (tren) and NH4NCS in a 1:4:4:10 molar ratio in aqueous solution results a bimetallic compound of the type [Cu(tren)(NCS)]4[Mn(NCS)6] (1) which has been characterized by microanalytical, physicochemical, spectroscopic and magnetic results. The structure of the complex is determined by X-ray diffraction study. Some pertinent crystal data are: monoclinic, space group P21/c, a = 11.0442(9) Å, b = 14.4923(12) Å, c = 19.2505(16) Å, β = 91.95(10)°, and Z = 4. The crystal structure consists of a hydrogen bonded 3D network of [Cu(tren)(NCS)]+ and [Mn(NCS)6]4- ions. Manganese(II) has an MnN6 chromophore bound by six N atoms of the terminal thiocyanates. Each copper(II) centre is five coordinated by one N atom of terminal thiocyanate and four N atoms of the tripod ligand. Four copper(II) units are hydrogen bonded to form a hydrogen bonded tetramer. Each manganese(II) in turn is further engaged in hydrogen bonding to four such tetramers leading to the 3D network. Variable-temperature magnetic study shows no significant magnetic interactions among the metal ions connected by hydrogen bonding.

Original languageEnglish
Pages (from-to)663-670
Number of pages8
JournalPolyhedron
Volume25
Issue number3
DOIs
Publication statusPublished - 13 Feb 2006
Externally publishedYes

Keywords

  • Bimetallic
  • Copper(II)/manganese(II)
  • Molecular ion
  • Supramolecular chemistry
  • Tris(2-aminoethylamine)

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