TY - JOUR
T1 - A new class of heterobinuclear complexes
T2 - Crystal structure and magnetism of copper(II)-nickel(II) complexes incorporating two different macrocyclic ligands
AU - Gao, En Qing
AU - Tang, Jin Kui
AU - Liao, Dai Zheng
AU - Jiang, Zong Hui
AU - Yan, Shi Ping
AU - Wang, Geng Lin
PY - 2001
Y1 - 2001
N2 - Three novel oxamido-bridged heterobinuclear copper(II)-nickel(II) complexes incorporating two different tetraazamacrocyclic compounds were synthesized and characterized by IR, ESR, and electronic spectra. They are of the formulas [(CuL1)Ni(rac-cth)](ClO)42·H2O (1), [Cu(L2)Ni(rac-cth)](ClO4)2·0.5 EtOH (2), and [(CuL3)Ni(rac-cth)](ClO4)2·H 2O (3). L1, L2, and L3 are the dianions of diethyl 5,6,7,8,16,17-hexahydro-6,7-dioxo-15H-dibenzo[e,n][1,4,8,12] tetraazacyclopentadecine-13,19-decarboxylate, diethyl 5,6,7,8,15,16-hexahydro-6,7-dioxodibenzo[1,4,8,11] tetraazacyclotetracine-13,18-decarboxylate, and diethyl 5,6,7,8,15,16-hexahydro-15-methyl-6,7-dioxodibenzo[1,4,8,11] tetraazacyclotetracine-13,18-decarboxylate, respectively, and rac-cth is rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane. The crystal structures of 1 and 2 were determined by single-crystal X-ray analysis. The NiII ion is pseudooctahedrally coordinated. The coordination geometry around the CuII ion in 2 is slightly distorted square planar, while that in 1 shows significant distortion towards a tetrahedral structure. The temperature dependence of the magnetic susceptibility for 1 and 2 was analyzed by means of the Hamiltonian Ĥ = - 2JŜ1·Ŝ2, leading to J = - 63.9 and -67.4 cm-1 for 1 and 2, respectively.
AB - Three novel oxamido-bridged heterobinuclear copper(II)-nickel(II) complexes incorporating two different tetraazamacrocyclic compounds were synthesized and characterized by IR, ESR, and electronic spectra. They are of the formulas [(CuL1)Ni(rac-cth)](ClO)42·H2O (1), [Cu(L2)Ni(rac-cth)](ClO4)2·0.5 EtOH (2), and [(CuL3)Ni(rac-cth)](ClO4)2·H 2O (3). L1, L2, and L3 are the dianions of diethyl 5,6,7,8,16,17-hexahydro-6,7-dioxo-15H-dibenzo[e,n][1,4,8,12] tetraazacyclopentadecine-13,19-decarboxylate, diethyl 5,6,7,8,15,16-hexahydro-6,7-dioxodibenzo[1,4,8,11] tetraazacyclotetracine-13,18-decarboxylate, and diethyl 5,6,7,8,15,16-hexahydro-15-methyl-6,7-dioxodibenzo[1,4,8,11] tetraazacyclotetracine-13,18-decarboxylate, respectively, and rac-cth is rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane. The crystal structures of 1 and 2 were determined by single-crystal X-ray analysis. The NiII ion is pseudooctahedrally coordinated. The coordination geometry around the CuII ion in 2 is slightly distorted square planar, while that in 1 shows significant distortion towards a tetrahedral structure. The temperature dependence of the magnetic susceptibility for 1 and 2 was analyzed by means of the Hamiltonian Ĥ = - 2JŜ1·Ŝ2, leading to J = - 63.9 and -67.4 cm-1 for 1 and 2, respectively.
UR - https://www.scopus.com/pages/publications/0035014451
U2 - 10.1002/1522-2675(20010418)84:4<908::AID-HLCA908>3.0.CO;2-Q
DO - 10.1002/1522-2675(20010418)84:4<908::AID-HLCA908>3.0.CO;2-Q
M3 - 文章
AN - SCOPUS:0035014451
SN - 0018-019X
VL - 84
SP - 908
EP - 917
JO - Helvetica Chimica Acta
JF - Helvetica Chimica Acta
IS - 4
ER -