TY - JOUR
T1 - Dinuclear μ-pyrazole nickel(II), cobalt(II), cadmium(II) and zinc(II) complexes with dinucleating pyrazole-derived ligands
AU - Pons, J.
AU - López, X.
AU - Benet, E.
AU - Casabó, J.
AU - Teixidor, F.
AU - Sánchez, F. J.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - New pyrazole-derived ligands, 3,5-bis(2-pyridyl)pyrazole (HL), 2-(6-methyl) pyridyl-2-pyridyl-3,5-pyrazole (HL1) and 3,5-bis-2-(6-methyl)pyridyl-3,5-pyrazole (HL2), are reported. Complexes of formulae [ML(NO3)]·xH2O (M = CoII, NiII, ZnII and CdII), [ML(NCS)]·H2O (M = CoII, NiII, ZnII and CdII), [ML1(NO3)]·H2O (M = NiII and CoII), [M2L2(NO3)2(OH)]·H2O (M = NiII and CoII), [M2L1Cl2(OH)] (M = CoII and NiII) were synthesized and characterized by IR and UV-vis spectroscopies and magnetic susceptibility measurements. Dinuclear compounds containing a di-μ-pyrazole bridge are found in nitrate and thiocyanate complexes with the first two ligands, while mixed μ-hydroxo, μ-pyrazole-bridged structures are found in chloride complexes with the second ligand and nitrate complexes with the last ligand. © 1990.
AB - New pyrazole-derived ligands, 3,5-bis(2-pyridyl)pyrazole (HL), 2-(6-methyl) pyridyl-2-pyridyl-3,5-pyrazole (HL1) and 3,5-bis-2-(6-methyl)pyridyl-3,5-pyrazole (HL2), are reported. Complexes of formulae [ML(NO3)]·xH2O (M = CoII, NiII, ZnII and CdII), [ML(NCS)]·H2O (M = CoII, NiII, ZnII and CdII), [ML1(NO3)]·H2O (M = NiII and CoII), [M2L2(NO3)2(OH)]·H2O (M = NiII and CoII), [M2L1Cl2(OH)] (M = CoII and NiII) were synthesized and characterized by IR and UV-vis spectroscopies and magnetic susceptibility measurements. Dinuclear compounds containing a di-μ-pyrazole bridge are found in nitrate and thiocyanate complexes with the first two ligands, while mixed μ-hydroxo, μ-pyrazole-bridged structures are found in chloride complexes with the second ligand and nitrate complexes with the last ligand. © 1990.
U2 - 10.1016/S0277-5387(00)84188-1
DO - 10.1016/S0277-5387(00)84188-1
M3 - Article
VL - 9
SP - 2839
EP - 2845
IS - 23
ER -