Donor Behaviour of Anionic and Asymmetric Phosphanido Derivatives of Platinum and Palladium12. Issue 10 (17th September 2013)

• Record Type: Journal Article
• Authors: Arias, Andersson; Forniés, Juan; Fortuño, Consuelo; Martín, Antonio; Mastrorilli, Piero; Gallo, Vito; Latronico, Mario; Todisco, Stefano
• Other Names: Caporali Maria sponsoringEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 10(2014)
• Page Start: 1679
• Page End: 1693
• Publication Date: 2013-09-17
• Subjects: Metal–metal interactions -- P li­gands -- Palladium -- Platinum -- Structure elucidation; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201300808
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: The reactions of [Ag(OClO3 )(PPh3 )] with [NBu4 ][(C6 F5 )2 Pt(μ‐PPh2 )2 M(hq)], [NBu4 ][(C6 F5 )2 Pt(μ‐PPh2 )2 M(bq)], [NBu4 ][(C6 F5 )2 Pt(μ‐PPh2 )2 M(pic)] and [NBu4 ][(C6 F5 )2 Pt(μ‐PPh2 )2 Pt(C6 F5 )(tht)] (M = Pt, Pd; hq = 8‐hydroxyquinolinate, bq = benzoquinolinate, pic = picolinate, tht = tetrahydrothiophene) afford the corresponding neutral adducts [(C6 F5 )2 Pt(μ‐PPh2 )2 (μ‐AgPPh3 )M(bq)] (M = Pt, 1 ; Pd, 2 ), [(C6 F5 )2 Pt(μ‐PPh2 )2 (μ‐AgPPh3 )M(hq)] (M = Pt, 3 ; Pd, 4 ) [(C6 F5 )2 Pt(μ‐PPh2 )2 (μ‐AgPPh3 )Pt(C6 F5 )(tht)] (5 ) and [(C6 F5 )2 Pt(μ‐PPh2 )2 M(pic‐AgPPh3 )] (M = Pt, 6 ; Pd, 7 ) as yellow solids. The XRD structures of1 –5, in which a [AgPPh3 ] + moiety bridges the metal centres, were confirmed in solution at low temperature. At room temperature, a dynamic process for the [AgPPh3 ] + moiety, which passes from the top to the bottom part of the molecules1 –5, was ascertained. For6 and7, the XRD analyses revealed structures in which the [AgPPh3 ] + moiety is linked to the picolinate oxygen atom bonded to the M centre; however, although such a structure was confirmed in solution for the Pt–Pd species7, the stable form of the Pt–Pt species6 in solution is that with the [AgPPh3 ] + moiety bridging the metal centres. Abstract : The trinuclear adducts [(C6 F5 )2 Pt(μ‐PPh2 )2 M(L–L′)(AgPPh3 )] (M = Pt, Pd) are synthesized as yellow solids. In these adducts, the [AgPPh3 ] moiety bridges the metal centres and is also linked to the picolinate oxygen atom. The dynamic behaviour of the adducts is studied.