Unexpected alkyne transfer between gold and rhenium atoms and its application to the synthesis of alkynyl rhenium(I) compounds

Montserrat Ferrer, Laura Rodríguez, Oriol Rossell, João C. Lima, Pilar Gómez-Sal, Avelino Martín

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

The reaction between the rhenium complexes [Re(OTf)(L)(CO)3] (L = bipy, t-Bu2bipy) and the alkynyl gold compounds (PPh 4)[Au(CξCpy)2] and (PPh4)[Au-(CξC-C 6H4-CξCpy)2] in a 2:1 molar ratio affords binuclear cationic rhenium(I) derivatives through a previously unreported alkyne transmetalation process involving the two metals. This reaction can be used for the synthesis of mononuclear rhenium alkynyls by changing the molar ratio between the reagents to 1:1. These new luminescent complexes were characterized spectroscopically. The X-ray structure of the binuclear compound [{Re(bipy)(CO)3}2(μ-CξCpy)](OTf) (2) was also determined.

Original languageEnglish
Pages (from-to)5096-5099
Number of pages4
JournalOrganometallics
Volume23
Issue number21
DOIs
Publication statusPublished - 11 Oct 2004

Keywords

  • Rhenium
  • Ligands
  • Tricarbonyl complexes

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