title: Synthesis, characterization and light harvesting properties of nickel(II) diimine dithiolate complexes.
abstract: Four Ni(II) diimine dithiolato complexes viz. [Ni{(S2C2Ph2)(1,10-Phenanthroline)}] (2), [Ni{(S2C2Ph2)(3,3'-dicarboxy-2,2'-bipyridyl)}] (3), [Ni{(S2C2Ph2)(4,4'-dicarboxy-2,2'-bipyridyl)}] (4) [Ni{(S2C2Ph2)(2,2'-bipyridyl)}] (5) have been prepared from [Ni(S2C2Ph2)2] (1) and characterized by microanalyses, UV-Vis, IR, (1)H and (13)C NMR. Attempts have been made to explain the nature of charge transfer in these molecules through quantum chemical calculations. The light harvesting properties of all the compounds have been studied using these compounds as photosensitizers in TiO2-based DSSC. The change in position of anchoring group on diimine derivative leads to different structural, electronic and light harvesting properties about the Ni(II) diimine dithiolate dyes.
authors.affiliation: Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226 007, India. abhinavmarshal@gmail.com
authors.forename: Abhinav
authors.initials: A
authors.lastname: Kumar
authors.forename: Sami
authors.initials: S
authors.lastname: Auvinen
authors.forename: Manoj
authors.initials: M
authors.lastname: Trivedi
authors.forename: Ratna
authors.initials: R
authors.lastname: Chauhan
authors.forename: Matti
authors.initials: M
authors.lastname: Alatalo
mesh_terms: D000042:Absorption; D004396:Coloring Agents / Q000737:chemistry; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D004560:Electricity; D055664:Electrochemical Techniques; D004583:Electrons; D007097:Imines / Q000138:chemical synthesis* / Q000737:chemistry*; D008027:Light; D009682:Magnetic Resonance Spectroscopy; D009532:Nickel / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D056831:Coordination Complexes; D007097:Imines; D013438:Sulfhydryl Compounds; D009532:Nickel
keywords: DFT; Diimine; Dithiolate; Light harvesting; TiO(2)