Reactivity of the phosphinito bridged Pt(i) complex [(PHCy 2)Pt(μ-PCy2){κ2P,O-μ-P(O)Cy 2}Pt(PHCy2)](Pt-Pt) towards Au(i) and Ag(i) electrophiles

  1. Latronico, M. 3
  2. Sánchez, S. 23
  3. Rizzuti, A. 3
  4. Gallo, V. 3
  5. Polini, F. 3
  6. Lalinde, E. 2
  7. Mastrorilli, P. 13
  1. 1 Institute for the Chemistry of OrganoMetallic Compounds
    info

    Institute for the Chemistry of OrganoMetallic Compounds

    Sesto Fiorentino, Italia

    ROR https://ror.org/02fkw1114

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  3. 3 Politecnico di Bari
    info

    Politecnico di Bari

    Bari, Italia

    ROR https://ror.org/03c44v465

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Revista:
Dalton Transactions

ISSN: 1477-9226

Año de publicación: 2013

Volumen: 42

Número: 7

Páginas: 2502-2511

Tipo: Artículo

DOI: 10.1039/C2DT32393A SCOPUS: 2-s2.0-84872703304 WoS: WOS:000313804200024 GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Dalton Transactions

Resumen

The reactivity of the phosphinito bridged Pt(i) complex [(PHCy 2)Pt1(μ-PCy2){κ2P,O-μ- P(O)Cy2}Pt2(PHCy2)](Pt-Pt) (1) towards Au(i) and Ag(i) electrophiles was explored. Treatment of 1 with AuCl yielded the dichloro Pt(ii) complex [(Cl)(PHCy2)Pt(μ-PCy2) {κ2P,O-μ-P(O)Cy2}Pt(Cl)(PHCy2)] (4), while [Au(PPh3)Cl] in thf (or toluene) caused ligand exchange resulting in the formation of [(PPh3)Pt(μ-PCy2) {κ2P,O-μ-P(O)Cy2}Pt(PHCy2)](Pt-Pt) (7) and [(PPh3)Pt(μ-PCy2){κ2P,O-μ-P(O) Cy2}Pt(PPh3)](Pt-Pt) (8). With [Au(PPh3)OTf] (independently from the solvent) or with [Au(PPh3)Cl] (only in dichloromethane), reaction with 1 gave [(PHCy2)Pt1(μ- PCy2){κ2P,O-μ-P(O)Cy2}Pt 2{μ-Au(PPh3)}(PHCy2)]X(Pt-Pt) ([6]X, X = OTf, Cl) clusters in which the [Au(PPh3)] moiety bridges the μP-Pt2 bond. The [Ag(PPh3)]+ electrophile attacks complex 1 selectively at the Pt2-μP bond to afford, at low T, the cationic cluster [(PHCy2)Pt1(μ-PCy 2){κ2P,O-μ-P(O)Cy2}Pt 2{μ-Ag(PPh3)}(PHCy2)]+(Pt-Pt) (10+) in which the [Ag(PPh3)]+ moiety bridges the μP-Pt2 bond. Clusters analogous to 10+, but without PPh3 bonded to Ag, are obtained from reactions of 1 with AgOTf, AgBF4, AgClO4 and AgCl. © 2013 The Royal Society of Chemistry.