Actinide-centered cyclometalation chemistry. An unusually distorted thorium bishydrocarbyl: Thp[η5-(CH3)5C5]2CH2Si(CH3)3]2

Joseph W. Bruno, Tobin Jay Marks*, Victor W. Day

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


The crystal and molecular structure of the complex Th[η5-(CH3)5C5]2[CH2-Si(CH3)3]2, which undergoes facile intramolecular cyclometalation to the thoracyclobutane Th[η5-(CH3)5C5]2(CH2)2Si(CH3)2, is reported. While the Th[η5-(CH3)5C5]2 ligation is unexceptional, the Th[CH2Si(CH3)3]2 fragment is highly unsymmetrical having Th-C (corresponding angle Th-C-Si) 2.51(1) Å (132.0(6)°) and 2.46(1) Å (148.0(7)°). This conformation, which appears to result from severe intramolecular non-bonded contacts, allows a methyl hydrogen atom of one CH2Si(CH3)3 ligand to approach within ca. 2.3 Å of the α-carbon atom of the other CH2Si(CH3)3 ligand.

Original languageEnglish (US)
Pages (from-to)237-246
Number of pages10
JournalJournal of Organometallic Chemistry
Issue number1
StatePublished - Jul 5 1983

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Actinide-centered cyclometalation chemistry. An unusually distorted thorium bishydrocarbyl: Thp[η<sup>5</sup>-(CH<sub>3</sub>)<sub>5</sub>C<sub>5</sub>]<sub>2</sub>CH<sub>2</sub>Si(CH<sub>3</sub>)<sub>3</sub>]<sub>2</sub>'. Together they form a unique fingerprint.

Cite this