title: [Electronic spectra and photooxidation characteristics of diimine-mixed ligand, complexes of nickel(II), copper(II) and zinc(II)].
abstract: The electronic absorption spectra of complexes M(mnt) (5-NO2-phen)(M = Ni(II), Cu(II) and Zn(II); mnt2- = 1, 2-dicyano-1, 2-ethylenedithiolate or maleonitriledithiolate; 5-NO2-phen = 5-nitro-1, 10-phenanthroline) in DMSO, DMF, DME, C2H5OH, THF, CH3CN and CH2Cl2 were reported. The relation between electronic spectral absorption band and the correlative transition in the molecular orbital energy level diagram of the complex was investigated. The essential characteristics of interligand charge transfer transition (LL'CT), and the relation between LL'CT and central metal ion, configuration, substituent electronic effect of ligands of the complexes and solvent effect were discussed. The photooxidation characteristics of complexes of M(mnt)(5-NO2-phen) in DMSO were ascertained.
authors.affiliation: Zhumadian Teachers' College, Zhumadian 463000, China.
authors.forename: Qing-cai
authors.initials: QC
authors.lastname: Pan
authors.forename: Zheng-he
authors.initials: ZH
authors.lastname: Peng
mesh_terms: D002614:Chelating Agents / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D004563:Electrochemistry; D004581:Electronics; D008024:Ligands; D008956:Models, Chemical; D009532:Nickel / Q000737:chemistry*; D010084:Oxidation-Reduction; D010618:Phenanthrolines / Q000737:chemistry*; D010777:Photochemistry; D013053:Spectrophotometry / Q000379:methods; D013438:Sulfhydryl Compounds / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D002614:Chelating Agents; D008024:Ligands; D010618:Phenanthrolines; D013438:Sulfhydryl Compounds; C459462:maleinitriledithiolate; D003300:Copper; D009532:Nickel; D015032:Zinc; C025205:1,10-phenanthroline; D004121:Dimethyl Sulfoxide