title: Novel tetranuclear Ni(II) Schiff base complex containing Ni4O4 cubane core: synthesis, X-ray structure, spectra and magnetic properties.
abstract: Novel tetranuclear nickel(II) Schiff base complex having symmetric Ni4O4 cubane-core, [Ni4O2(OAc)2(L)2] (1) has been synthesized. Single crystal of the complex exhibits four nickel atoms in the alternate corner of the cubane and other four sites are occupied by phenolate-O and μ3-O(2-). Variable temperature magnetic moment data suggests the Ni centres are weakly antiferromagnetically coupled with J1=-4.82cm(-1) and J2=-4.83cm(-1). The electronic spectra, emission properties and life time measurement of ligand, HL and complex 1 have been studied.
authors.affiliation: Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
authors.forename: Mahendra Sekhar
authors.initials: MS
authors.lastname: Jana
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, E28040 Madrid, Spain.
authors.forename: José L
authors.initials: JL
authors.lastname: Priego
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, E28040 Madrid, Spain. Electronic address: reyesja@quim.ucm.es.
authors.forename: Reyes
authors.initials: R
authors.lastname: Jiménez-Aparicio
authors.affiliation: Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India. Electronic address: tkmondal@chemistry.jdvu.ac.in.
authors.forename: Tapan Kumar
authors.initials: TK
authors.lastname: Mondal
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D060328:Magnetic Phenomena; D008958:Models, Molecular; D009532:Nickel / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D010636:Phenols; D012545:Schiff Bases; D009532:Nickel; C028007:nickel monoxide
keywords: Absorption and emission spectra; Magnetic properties; Tetranuclear Ni(II) complex with Ni(4)O(4) cubane core; X-ray structure