633296-03-4Relevant academic research and scientific papers
Binuclear nickel(II) and cobalt(III) complexes with dissimilar bridges: Synthesis, spectroscopy, crystal structure, and magnetism
Wang, Qing-Lun,Yu, Li-Hua,Liao, Dai-Zheng,Yan, Shi-Ping,Jiang, Zong-Hui,Cheng, Peng
, p. 2441 - 2451 (2003)
Two novel binuclear nickel(II) and cobalt(III) complexes with two or three dissimilar bridges, [Ni2(tacn)2(μ-N3) 2(μ-O2CPh)](ClO4)·H2O (1) and [Co2(tacn)2(μ-N3)(μ-OH)(μ-O 2CPh)](ClO4)3 (2) (tacn= 1,4,7-triazacyclononane), were synthesized and structurally as well as magnetically characterized. Both compounds have a discrete binuclear structure, bridged by two N3- ions and one carboxylato group of the benzoate ion for 1 and one N3- ion, one carboxylato group of the benzoate ion, and one hydroxy group for 2; the macrocyclic ligand tacn acts as terminal ligand. The magnetic data of compound 1 were analyzed by means of H=-2JS1S2-D(S1 2+S22), leading to J=19.6cm -1, g=2.07, D=4.01cm-1, and zJ′=-0.32cm -1. The ferromagnetic interaction is discussed on the basis of the structural features.
