Carbon-phosphorous bond cleavage on a platinum centre. Crystal structure of sym-cis-[Pt(μ-PPh<inf>2</inf>)(PPh<inf>2</inf>CH<inf>2</inf>CH <inf>2</inf>S-P,S)]<inf>2</inf>

Josep Duran, Alfonso Polo, Julio Real, Ángel Álvarez-Larena, J. Francesc Piniella

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Abstract

The complex [Pt(dppet-P,S)2] (Hdppet=PPh2CH 2CH2SH) that had been synthesized previously from K 2PtCl4 and Hdppet in the presence of base with moderate yields (ca. 50%), has been prepared in high yield (ca. 95%) in the absence of base. [Pt(dppet-P,S)2] is stable in the air, in the presence of acid (2 M HCl) and in refluxing toluene, but in the sun light it turns into binuclear sym-cis-[Pt(μ-PPh2)(dppet-P,S)]2 (1). The crystal structure of 1 revealed a non-crystallographically planar Pt 2P4S2 core with open μ-P-Pt-P(dppet) angles (102, 104°) and similar μ-P-Pt distances of 2.311(4), 2.318(5), 2.302(5), 2.324(5) Å, little influenced by the trans ligand. © 2003 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)280-283
JournalInorganica Chimica Acta
Volume353
DOIs
Publication statusPublished - 8 Sep 2003

Keywords

  • Crystal structures
  • Phosphide
  • Phosphinothiolate
  • Platinum

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