title: Influence of the diamine on the reactivity of thiosulfonato ruthenium complexes with hydrosulfide (HS-).
abstract: We have recently reported that cationic thiosulfonato ruthenium complexes [(p-cymene)Ru(bipy)(SSO(2)Ar)](+) (bipy: 2-2'-bipyridine, Ar: phenyl or p-tolyl) react with thiolates (RS(-), R = alkyl or aryl) by cleavage of the S-SO(2) bond and formation of a new S-S bond. In this work, we report that the outcome of the reaction is different if the hydrosulfide anion (R = H) is used, the product obtained being the hydrogen(sulfido) derivative [(p-cymene)Ru(bipy)(SH)](+). The bipy ligand is crucial in this result, and its replacement by ethylenediamine leads to a different product, the trisulfido-bridged dinuclear complex [[(p-cymene)Ru(en)(S)](2)S](2+). These two new species have been fully characterized, including by X-ray diffraction studies, and the two different mechanisms leading to their formation are discussed.
authors.affiliation: Laboratoire de Chimie et Biochimie Pharmacologique et Toxicologique, UMR 8601 Université Paris Descartes, CNRS, PRES Paris cité, 45 rue des Saints Pères, 75270 Paris cedex 06, France. erwan.galardon@parisdescartes.fr
authors.forename: Erwan
authors.initials: E
authors.lastname: Galardon
authors.forename: Hombeline
authors.initials: H
authors.lastname: Daguet
authors.forename: Patrick
authors.initials: P
authors.lastname: Deschamps
authors.forename: Pascal
authors.initials: P
authors.lastname: Roussel
authors.forename: Alain
authors.initials: A
authors.lastname: Tomas
authors.forename: Isabelle
authors.initials: I
authors.lastname: Artaud
mesh_terms: D018360:Crystallography, X-Ray; D003959:Diamines / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D013451:Sulfonic Acids / Q000737:chemistry*
chemical_list: D003959:Diamines; D009942:Organometallic Compounds; D013438:Sulfhydryl Compounds; D013440:Sulfides; D013451:Sulfonic Acids; D012428:Ruthenium