One Step Closer to Structural Models for HDS Catalysts: Thienyl-Oxo Complexes of Re(V)

Philip R. Stafford, Thomas B. Rauchfuss, Scott R. Wilson

Research output: Contribution to journalArticlepeer-review

Abstract

The present investigation focuses on thiophene derivatives of oxometal centers with low d-electron counts. Treatment of a THF slurry of ReOCl3(PPh3)2 with thienyllithium reagents afforded Li(THF)nReO(thienyl)4 where thienyl is 2-C4H3S, 2-MeC4H2,2-C8H5S (benzothienyl), and 2-C12H7S (dibenzothienyl). In contrast to the previously reported low-valent derivatives these species are reactive toward protic and oxidizing reagents. Electrochemical studies demonstrate that these Rev complexes undergo oxidation at mild potentials. Crystallographic analyses of Li(THF)3ReO(C4H3S)4 and Li(THF)4ReO(C8H5S)4 indicate a square pyramidal Re center with the four thienyl ligands tilted in a pinwheel arrangement. Studies on Re(2-C4H3S)(CO)5 reveal that it is stable toward hydrolysis.

Original languageEnglish (US)
Pages (from-to)5220-5225
Number of pages6
JournalInorganic Chemistry
Volume34
Issue number21
DOIs
StatePublished - Oct 1 1995

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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