title: A novel trinuclear cobalt(II) complex derived from an asymmetric Salamo-type N2O3 bisoxime chelate ligand: synthesis, structure and optical properties.
abstract: A novel trinuclear Co(II) complex, {[CoL(PrOH)]2Co(H2O)}·PrOH, has been synthesized with 6-ethoxy-6'-hydroxy-2,2'-[ethylenedioxybis(nitrilomethylidyne)]diphenol (H3L), and characterized by elemental analyses, FT-IR, UV-Vis, molar conductance and X-ray crystallographic analysis. Two n-propanol molecules and one water molecule coordinate to three Co(II) ions and four μ-phenoxo oxygen atoms from two [CoL(CH3CH2CH2OH)] units also coordinating to Co(II) ion. All the penta-coordinated Co(II) ions of the Co(II) complex have a slightly distorted trigonal bipyramidal coordinated polyhedron. Meanwhile, the μ-phenoxo bridges play important roles in assembling Co(II) ions and L(3-) units, which is different from the normal trinuclear Co(II) complexes with the Salamo-type ligands reported early.
authors: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: dongwk@126.com.
authors: Wen-Kui
authors: WK
authors: Dong
authors: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors: Gang
authors: G
authors: Li
authors: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors: Zheng-Kun
authors: ZK
authors: Wang
authors: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors: Xiu-Yan
authors: XY
authors: Dong
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D009589:Nitrogen Oxides / Q000138:chemical synthesis / Q000737:chemistry*; D010091:Oximes / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D009589:Nitrogen Oxides; D010091:Oximes; D003035:Cobalt
keywords: Asymmetric Salamo-type ligand; Co(II) complex; Crystal structure; Optical property; Synthesis