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

Molecules

In-Taek Lim¹ 

[1] Department of Chemistry Education, Kongju National University, Kongju 314-701, Korea; E-Mail

关键词: 1D hydrogen-bonded polymer;    nickel(II) complex;    tetraaza macrocycle;    isophthalic acid;    4/6 coordination number set;   

DOI  :  10.3390/molecules18066608

来源: mdpi

【 摘 要 】

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-1with a = 8.602(2), b = 10.684(7), c = 16.550(3) Å, α = 91.04(4), β = 94.09(2), γ = 111.09(4)°, V = 1413.9(10) ų, Z = 1. The cyclic voltammogram of 1 undergoes one-electron wave corresponding to Ni^II/Ni^I 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.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.