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Ki-Young Choi Yong-Man Jeon Choon Pyo Hong Haiil Ryu Il-Hwan Suh 《Journal of chemical crystallography》2001,31(4):197-201
The compound [Zn(L2)Cl]ClO4·H2O (1) (L2 = 2,13,-bis(3-hydroxypropyl)-5,16-di-methyl-2,6,13,17-tetraazatricyclo[14,4,01.18,07.12]docosane) has been synthesized and structurally characterized. 1 crystallizes in the monoclinic system, space group P21/c with a = 8.932(2), b = 16.189(2), c = 22.492(4) Å = 95.34(2)° V = 3238.3(11) Å3; and Z = 4. The zinc atom is placed in a highly distorted tetrahedral environment bonding with three nitrogen atoms of the macrocycle and one chlorine atom. 相似文献
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Ki-Young?ChoiEmail author Sun-Young?Park Yong-Man?Jeon Haiil?Ryu 《Structural chemistry》2005,16(6):649-656
Tetradentate Schiff-base carboxylate-containing ligands, bis(2-pyridylmethyl)amino-5-valeric acid (Hpmva) and bis(2-pyridylmethyl)amino-6-caproic
acid (Hpmca), react with copper(II) perchlorate to give rise to the carboxylated bridged chain complexes {[Cu(μ-pmva)(H2O)](ClO4)}n (1) and {[Cu(μ-pmca)(H2O)](ClO4)}n (2). These complexes have been characterized by X-ray crystallography, spectroscopic, and variable-temperature magnetic susceptibility
measurements. In 1 and 2, each of the copper(II) ions exhibit CuN3O2 coordination environments with the three nitrogen atoms of the ligand and one oxygen atom belonging to the carboxylate group
of an adjacent molecule occupying the basal position and a water molecule coordinated in the axial position. The electronic
spectra of the complexes are significantly affected by the coordination geometry. Magnetic susceptibility measurements indicate
that complexes exhibit very weak ferromagnetic interactions. 相似文献
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Choi Ki-Young Jeon Yong-Man Lee Kyu-Chul Choi Suk-Nam Kim Moon-Won Lim Hae-Hwan Kim Moon-Jip 《Transition Metal Chemistry》2004,29(4):405-410
Tetradentate Schiff-base carboxylate-containing ligands, bis(2-pyridylmethyl)amino-3-propionic acid (Hpmpa) and bis(2-pyridylmethyl)amino-4-butyric acid (Hpmba), react with CuCl2 to give rise to the mononuclear complexes [Cu(Hpmpa)Cl]Cl · 2H2O (1) and [Cu(Hpmba)Cl2]· H2O (2). These complexes have been characterized by X-ray crystallography, spectroscopic and cyclic voltammetry. Crystal structure of (1) shows that the copper(II) ion has a distorted square-pyramidal geometry with the three nitrogen atoms of the Hpmpa ligand and one chloride anion occupying the basal plane and an oxygen atom from the carboxylate group coordinating the axial position. In (2), the coordination environment around the copper(II) ion reveals a distorted square-pyramids with three nitrogen atoms of the Hpmba ligand and one chloride anion that comprise the basal plane, whereas the apical position is filled by the chloride anion. Cyclic voltammetry of the complexes gives two one-electron waves corresponding to CuII/CuIII and CuIII/CuI processes. The electronic spectra and redox potentials of the complexes are influenced significantly by the N-pendant carboxylate groups. 相似文献
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