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Int. J. Mol. Sci. 2011, 12(4), 2232-2241; doi:10.3390/ijms12042232

One-Dimensional Hydrogen-Bonded Infinite Chain from Nickel(II) Tetraaza Macrocyclic Complex and 1,2-Cyclopentanedicarboxylate Ligand

Department of Chemistry Education, Kongju National University, Kongju 314-701, Korea
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Author to whom correspondence should be addressed.
Received: 14 February 2011 / Revised: 24 March 2011 / Accepted: 25 March 2011 / Published: 1 April 2011
(This article belongs to the Special Issue Molecular Self-Assembly 2011)
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Abstract

The reaction of [Ni(L)]Cl2·2H2O (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo [14,4,01.18,07.12]docosane) with trans-1,2-cyclopentanedicarboxylic acid (H2-cpdc) yields a 1D hydrogen-bonded infinite chain with formula [Ni(L)(H-cpdc-)2] (1). This complex has been characterized by X-ray crystallography, spectroscopy and cyclic voltammetry. The crystal structure of 1 exhibits a distorted octahedral geometry about Ni atom with four nitrogen atoms of the macrocycle and two oxygen atoms of the H-cpdc- ligand at the axial position. Compound 1 crystallizes in the monoclinic system P21/c with a = 8.7429(17), b = 10.488(2), c = 18.929(4) Å, β = 91.82(2), V = 1734.8(6) Å3, Z = 2. Electronic spectrum of 1 reveals a high-spin octahedral environment. Cyclic voltammetry of 1 undergoes two waves of a one-electron transfer corresponding to NiII/NiIII and NiII/NiI processes. View Full-Text
Keywords: 1D hydrogen-bonded infinite chain; nickel(II) complex; tetraaza macrocycle; trans-1,2-cyclopentanedicarboxylic acid; distorted octahedral geometry 1D hydrogen-bonded infinite chain; nickel(II) complex; tetraaza macrocycle; trans-1,2-cyclopentanedicarboxylic acid; distorted octahedral geometry
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Lim, I.-T.; Choi, K.-Y. One-Dimensional Hydrogen-Bonded Infinite Chain from Nickel(II) Tetraaza Macrocyclic Complex and 1,2-Cyclopentanedicarboxylate Ligand. Int. J. Mol. Sci. 2011, 12, 2232-2241.

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