Manipulation of Organoactlnlde Coordinative Unsaturation and Stereochemistry. Properties of Chelating Bls(polymethylcyclopentadlenyl) Hydrocarbyls and Hydrides

Carol M. Fendrlck, Eric A. Mlntz, Larry D. Schertz, Tobin J. Marks*, Victor W. Day

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

The synthesis of the chelating polymethylcyclopentadienyl ligand (CH3)2Si[(CH3)4C5]22- is reported. Reaction with ThCl4 followed by alkylation yields the new, thermally stable thorium hydrocarbyls (CH3)2Si-[(CH3)4C5]2ThR2, R = n-C4H9, CH2C(CH3)3, CH2Si(CH3)3, CH2C6H5, and C6H5. The R = CH2Si(CH3)3 complex has also been characterized by single-crystal X-ray diffraction. The most unusual feature of the molecular structure is the rather small (ring center of gravity)-Th-(ring center of gravity) angle of 118.4° and the rather large ring-ring dihedral angle of 105.4°. The hydrocarbyls undergo facile hydrogenolysis to yield the new thorium hydride {(CH3)2Si[(CH3)4C5]2ThH2}x. The infrared spectrum of this hydride lacks terminal Th-H stretching transitions. The new hydride catalyzes olefin hydrogenation at turnover frequencies significantly in excess of those for {Th[(C-H3)5C5]2H2)}2.

Original languageEnglish (US)
Pages (from-to)819-821
Number of pages3
JournalOrganometallics
Volume3
Issue number5
DOIs
StatePublished - May 1984

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'Manipulation of Organoactlnlde Coordinative Unsaturation and Stereochemistry. Properties of Chelating Bls(polymethylcyclopentadlenyl) Hydrocarbyls and Hydrides'. Together they form a unique fingerprint.

Cite this