Preparation and Characterization of the First Organoactinide Polysulfide (η5-C5Me5)2ThS5. A Unique Example of the Twist-Boat Conformation of the MS5 Ring

Debra A. Wrobleski, Don T. Cromer, Robert R. Ryan, Alfred P. Sattelberger, J. V. Ortiz, Thoas B. Rauchfuss

Research output: Contribution to journalArticlepeer-review

Abstract

Polysulfide chelates (Sx2-) are an emerging class of inorganic ligands whose reactions are of interest to transition-metal and main-group specialists alike. Stable derivatives have been synthesized for most of the d-block elements, and a wide range of MSxring sizes (x = 2–7, 9) and bonding modes have been established via X-ray crystallography.2 The reaction chemistry of these transition-metal derivatives is frequently complex,3 but there are a number of useful synthetic applications such as the high-yield preparations of cyclo-S6 and -S7 from Cp2TiS5 (Cp = η5-C5H5)and SXC12 (x = 1, 2).4 To date, polysulfido chelates have not been introduced into the coordination spheres of f elements, but this is an obvious extension for the area and an opportunity to study the effects of the larger ionic radii and higher Lewis acidities of f elements on MSxring sizes, conformations, and reactivity patterns. We report here the synthesis, properties, and structure of the first actinide polysulfido complex, bis(pentamethylcyclo-pentadienyl)thorium pentasulfide, and provide some theoretical insight on the nature of the Th(IV)-S52-interactions.

Original languageEnglish (US)
Pages (from-to)174-175
Number of pages2
JournalJournal of the American Chemical Society
Volume108
Issue number1
DOIs
StatePublished - 1986

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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