title: Phosphino-aminothiazoline platinum(II) and platinum(II)/gold(I) complexes: structural, chemical and vapoluminescent properties.
abstract: Phosphino-amino-thiazolines and -thiazoles can exist in solution in two tautomeric forms, in which the N-H proton involves the endo-cyclic or exo-cyclic nitrogen atom. The two tautomers show different reactivities toward alcoholysis; the imino form degrades more rapidly. Their bischelated platinum complexes were studied in the solid state by single crystal X-ray diffraction. Thus, the unique stereoelectronic features of the [Pt(PN(th))] (PN(th)=diphenylposphino-aminothiazoline) moiety were revealed. The complex cis-[Pt(PN(th))(2)] reacts with gold(I) salts to yield dimetallic compounds, the molecular structures of which have been determined by X-ray diffraction. Solid cis-[Pt(PN(th))(2)] shows vapoluminescent properties if exposed to alcohol vapors. A combined photophysical and crystallographic investigation has been carried out to clarify the unprecedented rigidochromic role of the alcohol in this phenomenon.
authors.affiliation: Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, F-67070 Strasbourg Cedex, France.
authors.forename: Roberto
authors.initials: R
authors.lastname: Pattacini
authors.forename: Carlo
authors.initials: C
authors.lastname: Giansante
authors.forename: Paola
authors.initials: P
authors.lastname: Ceroni
authors.forename: Mauro
authors.initials: M
authors.lastname: Maestri
authors.forename: Pierre
authors.initials: P
authors.lastname: Braunstein