TY - JOUR
T1 - Synthesis, crystal structure and magnetic properties of novel copper(II)-nickel(II) complexes of macrocyclic oxamides
AU - Gao, En Qing
AU - Liao, Dai Zheng
AU - Jiang, Zong Hui
AU - Yan, Shi Ping
PY - 2001/4/30
Y1 - 2001/4/30
N2 - Three novel oxamido-bridged heterobinuclear copper(II)-nickel(II) complexes derived from macrocyclic oxamido compounds have been synthesized and characterized by IR, ESR and electronic spectra. They are of the formula [(CuL1)Ni(pmtn)(NCS)]ClO4 (1), [Cu(L2)Ni(pmtn)(NCS)]ClO4 (2) and [(CuL3)Ni(pmtn)(NCS)]ClO4 (3), where H2L1 = 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis (ethoxycarbonyl)-1,4,8,12-tetraazacyclopentadeca-7,12-diene, H2L2 = 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis (ethoxycarbonyl)-1,4,8,11-tetraazacyclotetradeca-7,11-diene and H2L3 =2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12- bis(ethoxycarbonyl)-1,4,8,11-tetraazacyclotetradeca-7,11-diene, respectively. The crystal structure of 2 has been determined by X-ray crystallography. The nickel(II) ion is pseudo-octahedrally coordinated and the copper(II) ion is in a distorted square-pyramidal environment. The temperature dependence of the magnetic susceptibility for 1 and 2 has been analyzed using the Hamiltonian Ĥ = -2JŜ1·Ŝ2, leading to J= -47.5 and -47.2 cm-1, for 1 and 2, respectively.
AB - Three novel oxamido-bridged heterobinuclear copper(II)-nickel(II) complexes derived from macrocyclic oxamido compounds have been synthesized and characterized by IR, ESR and electronic spectra. They are of the formula [(CuL1)Ni(pmtn)(NCS)]ClO4 (1), [Cu(L2)Ni(pmtn)(NCS)]ClO4 (2) and [(CuL3)Ni(pmtn)(NCS)]ClO4 (3), where H2L1 = 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis (ethoxycarbonyl)-1,4,8,12-tetraazacyclopentadeca-7,12-diene, H2L2 = 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis (ethoxycarbonyl)-1,4,8,11-tetraazacyclotetradeca-7,11-diene and H2L3 =2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12- bis(ethoxycarbonyl)-1,4,8,11-tetraazacyclotetradeca-7,11-diene, respectively. The crystal structure of 2 has been determined by X-ray crystallography. The nickel(II) ion is pseudo-octahedrally coordinated and the copper(II) ion is in a distorted square-pyramidal environment. The temperature dependence of the magnetic susceptibility for 1 and 2 has been analyzed using the Hamiltonian Ĥ = -2JŜ1·Ŝ2, leading to J= -47.5 and -47.2 cm-1, for 1 and 2, respectively.
KW - Copper(II)-nickel(II) complexes
KW - Crystal structures
KW - Macrocyclic compound
KW - Magnetism
UR - https://www.scopus.com/pages/publications/0035971307
U2 - 10.1016/S0277-5387(01)00755-0
DO - 10.1016/S0277-5387(01)00755-0
M3 - 文章
AN - SCOPUS:0035971307
SN - 0277-5387
VL - 20
SP - 923
EP - 927
JO - Polyhedron
JF - Polyhedron
IS - 9-10
ER -