Synthesis and characterization of a "Pt3Tl" cluster containing an unprecedented trigonal environment for thallium(I)

Inorg Chem. 2013 May 20;52(10):5627-9. doi: 10.1021/ic400167w. Epub 2013 Apr 15.

Abstract

The tetranuclear [{Pt(CNC)(tht)}3Tl](PF6) (tht = tetrahydrothiophene; SC4H8; CNC = C,N,C-2,6-NC5H3(C6H4-2)2; 2) cluster has been prepared by the reaction of [Pt(CNC)(tht)] (1) and TlPF6 (molar ratio 3:1) and structurally characterized. The Tl(I) atom is bonded to three Pt(II) centers bearing a perfect trigonal coordination. The Pt(II)-Tl(I) bonds are unsupported by any bridging ligand and are the shortest of this kind reported so far [2.9086(5) Å]. These intermetallic bonds persist in a CD2Cl2 solution, as shown by the (195)Pt{(1)H} NMR spectrum of 2 at 193 K, in which a Pt-Tl coupling of 8.9 kHz is observed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Models, Molecular
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis*
  • Organometallic Compounds / chemistry*
  • Platinum / chemistry*
  • Thallium / chemistry*

Substances

  • Organometallic Compounds
  • Platinum
  • Thallium