Synthesis and Characterization of Alkylidene-Bridged Zirconium-Aluminum Complexes

Frederick M. Hartner, Susan M. Clift, Jeffrey Schwartz, Thomas H. Tulip

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22 Scopus citations

Abstract

Examples of the title complexes have been prepared through two complementary routes. Spectral analysis indicate that they are best formulated as Zr analogues of Tebbe's reagent, Cp2TiCH2AlClMe2. Single-crystal X-ray diffraction analysis of Cp2ZrCH(CH2-t-Bu)AlCl(i-Bu)2at -100 °C confirms this result: space group C 52h—F2/n (No. 14), a = 19.779 (3) A, b = 14.055 (3) A, c = 9.086 (2) A, β= 90.12 (2)°, V = 2526 (2) A, and Z = 4. The final conventional and weighted agreement indices on F0for 4306 reflections with F0 2> 3σ(f02) are 0.035 and 0.040. Both Zr and A1 show pseudotetrahedral coordination. The Zr—C bond length, 2.158 (2) A, indicates significant Zr=C bonding.

Original languageEnglish (US)
Pages (from-to)1346-1350
Number of pages5
JournalOrganometallics
Volume6
Issue number6
DOIs
StatePublished - Jun 1 1987

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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