title: Pt(II) mono-carbonyl complexes of a cyclometallating 2-(2'-thienyl)-(pyridinato-C,3N') ligand: nature and dynamics of the lowest excited state of the chloro- and thiolato-complexes.
abstract: The synthesis of a cyclometallated Pt(II) thiolate carbonyl complex Pt(thpy)(CO)(mts), (thpy = 2-(2'-thienyl)-pyridinate, mts = methylthiosalicylate) is reported. A combination of emission and time-resolved infrared (TRIR) techniques revealed for both Pt(thpy)(CO)(mts) and its chloride analogue Pt(thpy)(CO)Cl the predominant intra 2-(2'-thienyl)-pyridinate 3pi pi* character of the lowest electronic excited state. The unusually short lifetime (780 ps) of the intraligand 3pi pi* lowest excited state of Pt(thpy)(CO)(mts) indicates that this electronic state is influenced by another close-lying excited state, probably charge-transfer in origin.
authors.affiliation: School of Chemistry, University of Nottingham, Nottingham, UK NG7 2RD.
authors.forename: Yurii A
authors.initials: YA
authors.lastname: Kovelenov
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Blake
authors.forename: Michael W
authors.initials: MW
authors.lastname: George
authors.forename: Pavel
authors.initials: P
authors.lastname: Matousek
authors.forename: Mikhail Ya
authors.initials: MY
authors.lastname: Mel'nikov
authors.forename: Anthony W
authors.initials: AW
authors.lastname: Parker
authors.forename: Xue-Zhong
authors.initials: XZ
authors.lastname: Sun
authors.forename: Michael
authors.initials: M
authors.lastname: Towrie
authors.forename: Julia A
authors.initials: JA
authors.lastname: Weinstein