title: Redox-switchable chromophores based on metal (Ni, Pd, Pt) mixed-ligand dithiolene complexes showing molecular second-order nonlinear-optical activity.
abstract: The synthesis and full characterization of the redox-active nickel triad mixed-ligand dithiolene complexes based on Bz(2)pipdt = 1,4-dibenzylpiperazine-3,2-dithione and dmit = 2-thioxo-1,3-dithiole-4,5-dithiolate ligands are reported. These complexes show a reversibly bleacheable solvatochromic peak and a remarkably high negative molecular first hyperpolarizability, whose values depend on the metal being highest for the platinum(II) compound.
authors.affiliation: Dipartimento di Chimica Inorganica ed Analitica, Università di Cagliari, I-09042 Monserrato, Cagliari, Italy.
authors.forename: Davide
authors.initials: D
authors.lastname: Espa
authors.forename: Luca
authors.initials: L
authors.lastname: Pilia
authors.forename: Luciano
authors.initials: L
authors.lastname: Marchiò
authors.forename: Maria Laura
authors.initials: ML
authors.lastname: Mercuri
authors.forename: Angela
authors.initials: A
authors.lastname: Serpe
authors.forename: Alberto
authors.initials: A
authors.lastname: Barsella
authors.forename: Alain
authors.initials: A
authors.lastname: Fort
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Dalgleish
authors.forename: Neil
authors.initials: N
authors.lastname: Robertson
authors.forename: Paola
authors.initials: P
authors.lastname: Deplano
mesh_terms: D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D009532:Nickel / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry; D010984:Platinum / Q000737:chemistry; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D013438:Sulfhydryl Compounds; D010984:Platinum; D010165:Palladium; D009532:Nickel