One-Dimensional Coordination Polymer Assembled by Tetraaza Macrocyclic Nickel(II) Complex and trans-1,4-Cyclohexanedicarboxylate ligand

• Published in: Journal of inorganic and organometallic polymers and materials Vol. 22; no. 1; pp. 295 - 300
• Main Authors: Choi, Ki-Young, Lim, In-Tack, Lee, Kyu-Chul, Oh, Ki-Young, Kim, Moon-Jip
• Format: Journal Article
• Language: English
• Published: Boston Springer US 2012
• Subjects: Chemistry; Chemistry and Materials Science; Communication; Coordination polymers; Distortion; Electronics; Inorganic Chemistry; Ligands; Macrocyclic compounds; Magnetic permeability; Nickel; Organic Chemistry; Organometallic polymers; Polymer Sciences; X-rays; 1D Coordination polymer; Nickel(II) complex; 1,4-cyclohexanedicarboxylic acid; Tetraaza macrocycle; Crystal structure; Antiferromagnetic complex
• ISSN: 1574-1443; 1574-1451
• DOI: 10.1007/s10904-011-9576-5

The reaction of [Ni(L)]Cl 2 ·2H 2 O (L = 3.14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,0 1.18 ,0 7.12 ]docosane) with trans -1,4-cyclohexanedicarboxylic acid (H 2 chdc) generates a 1D coordination and 2D hydrogen-bonded polymer {[Ni(L)(chdc) 2 ]·2H 2 O} n ( 1 ). The polymer complex was characterized by X-ray crystallography, spectroscopy and magnetic susceptibility. Each nickel(II) ion has a distorted octahedral coordination environment with the four secondary amines of the macrocycle in which two trans carboxylate anions of the chdc 2− ligand have assembled around each nickel center. The electronic spectrum of 1 in the solid state exhibits a high-spin octahedral environment. The magnetic behavior of 1 reveals a weak intramolecular antiferromagnetic interaction with J values of −1.15(2) cm −1 .