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Molecules 2013, 18(6), 6608-6619; doi:10.3390/molecules18066608

Self-Assembly of a 1D Hydrogen-Bonded Polymer from a Hexamethyltetraaza Macrocyclic Nickel(II) Complex and Isophthalic Acid

Department of Chemistry Education, Kongju National University, Kongju 314-701, Korea
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Received: 3 May 2013 / Revised: 31 May 2013 / Accepted: 3 June 2013 / Published: 6 June 2013
(This article belongs to the Section Molecular Diversity)
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Abstract

The compound [Ni(L)(isoph)2][Ni(L)]·8H2O (1; L = C-meso-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane; H2-isoph = isophthalic acid) has been synthesized and structurally characterized. Complex 1 exhibits a geometrically symmetric core with a {4/6} coordination number set. The coordination environment around the Ni(1) ion is a distorted octahedron, while the geometry around the four-coordinate Ni(2) is depicted as square planar in 1D hydrogen-bonded infinite chain. The compound crystallizes in the triclinic system P-1 with a = 8.602(2), b = 10.684(7), c = 16.550(3) Å, a = 91.04(4), b = 94.09(2), g = 111.09(4)°, V = 1413.9(10) Å3, Z = 1. The cyclic voltammogram of 1 undergoes one-electron wave corresponding to NiII/NiI process. The electronic spectra, electrochemical and TGA behavior of the complex are significantly affected by the nature of the hexamethyltetraaza macrocycle and the axial isoph2− ligand.
Keywords: 1D hydrogen-bonded polymer; nickel(II) complex; tetraaza macrocycle; isophthalic acid; 4/6 coordination number set 1D hydrogen-bonded polymer; nickel(II) complex; tetraaza macrocycle; isophthalic acid; 4/6 coordination number set
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lim, I.-T.; Choi, K.-Y. Self-Assembly of a 1D Hydrogen-Bonded Polymer from a Hexamethyltetraaza Macrocyclic Nickel(II) Complex and Isophthalic Acid. Molecules 2013, 18, 6608-6619.

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