title: Synthesis, crystal structure and spectral properties of a supramolecular trinuclear nickel(II) complex with 5-methoxy-4'-bromo-2,2'-[ethylenedioxybis(nitrilomethylidyne)]diphenol.
abstract: A novel trinuclear Ni(II) complex [{NiL(n-PrOH)(μ-OAc)}2Ni]·n-PrOH·H2O with an asymmetric Salamo-type ligand, 5-methoxy-4'-bromo-2,2'-[ethylenedioxybis(nitrilomethylidyne)]diphenol (H2L), has been synthesized and characterized by elemental analyses, IR, UV/Vis and fluorescence spectra and molar conductance measurement. The crystal structure of the Ni(II) complex has been determined by single-crystal X-ray diffraction. Two acetate groups coordinating to three Ni(II) ions through NiOCONi bridges and four μ-phenoxo oxygen atoms from two [NiL(n-PrOH)] units also coordinating to Ni(II) ions. In the Ni(II) complex, two n-propanol molecules are coordinated to the two terminal Ni(II) ions having slightly distorted octahedral coordination geometries and form a trinuclear structure, There are also one non-coordinated n-propanol and one non-coordinated water molecule. In the crystal structure, the Ni(II) complex is linked by intermolecular hydrogen bonds into an infinite 1D supramolecular chain-like structure.
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: dongwk@126.com.
authors.forename: Wen-Kui
authors.initials: WK
authors.lastname: Dong
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Du
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors.forename: Xin-Ying
authors.initials: XY
authors.lastname: Zhang
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.affiliation: School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
authors.forename: Xiu-Yan
authors.initials: XY
authors.lastname: Dong
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004553:Electric Conductivity; D006860:Hydrogen Bonding; D008968:Molecular Conformation; D009532:Nickel / Q000737:chemistry*; D019800:Phenol / Q000138:chemical synthesis* / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D056831:Coordination Complexes; C000595977:Ni(II)-5-methoxy-4'-bromo-2,2'-(ethylenedioxybis(nitrilomethylidyne))diphenol; D019800:Phenol; D009532:Nickel
keywords: Asymmetric Salamo-type ligand; Crystal structure; Ni(II) complex; Spectral property; Synthesis