C-H and P-C(Ph) activation competitive processes caused by interaction with the solvate [cis-Pt(C6F5)2(thf)2].

  1. Berenguer, J.R. 1
  2. Bernechea, M. 1
  3. Lalinde, E. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    GRID grid.119021.a

Journal:
Dalton Transactions

ISSN: 1477-9226

Year of publication: 2007

Volume: 23

Pages: 2384-2393

Type: Article

Export: RIS
DOI: 10.1039/b705041k SCOPUS: 2-s2.0-34249985030 WoS: 000247471000017 GOOGLE SCHOLAR

Metrics

Cited by

  • Scopus Cited by: 1 (12-06-2021)

Journal Citation Reports

  • Year 2007
  • Journal Impact Factor: 3.212
  • Best Quartile: Q1
  • Area: CHEMISTRY, INORGANIC & NUCLEAR Quartile: Q1 Rank in area: 9/43 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2007
  • SJR Journal Impact: 0.754
  • Best Quartile: Q2
  • Area: Inorganic Chemistry Quartile: Q2 Rank in area: 29/69

Abstract

The study of the reaction between the ethylene [Pt(η2-H 2CCH2)(PPh3)2] or alkyne [Pt(η2-HC≡CR)(PPh3)2] (R = SiMe 3 1, But 2) complexes with [cis-Pt(C6F 5)2(thf)2] (thf = tetrahydrofuran) has enabled us to observe the existence of competitive processes between the activation of a P-C(Ph) bond on the PPh3 ligand, to give the binuclear derivative [cis-(C6F5)2Pt(-Ph)(-PPh2) Pt(PPh3)] 3, and the activation of a C-H bond of the unsaturated group, to give the corresponding (-hydride)(-vinyl) [cis,cis-(PPh 3)2Pt(-H)(-1κCα:η2- CHCH2)Pt(C6F5)2] 4 or (-hydride)(-alkynyl) [cis,cis-(PPh3)2Pt(-H)(- 1κCα:η2-C≡CR)Pt(C6F 5)2] (R = SiMe3 5, But 6) compounds, respectively. The monitoring of these reactions by NMR spectroscopy has allowed us to detect several intermediates, and to propose a mechanism for the C-H bond activation. In addition, the structures of the (-hydride)(-alkynyl) complex 5 and the unprecedented (-hydride)(-vinyl) derivative 4 have been obtained by X-ray crystallographic analyses. © The Royal Society of Chemistry.