Accession Number:

ADA127004

Title:

The Reaction Chemistry of Transition Metal Diphenylphosphorus Complexes with Organoaluminum Compounds. The Synthesis, Characterization and Crystal and Molecular Structure of Cr(CO)5(PPh2(CH2)4OA1(CH2SiMe3)2), an Example of THF Cleavage.

Descriptive Note:

Technical rept.,

Corporate Author:

STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY

Report Date:

1983-03-28

Pagination or Media Count:

55.0

Abstract:

Metathetical and small molecule elimination reactions between appropriate transition metal carbonyl diphenylphosphorus complexes and organoaluminum compounds have been investigated as synthetic routes to transition metal derivatives of amphoteric ligands. The synthesis, characterization and properties of the starting compounds for the metathetical reactions, MCO5PPH2K.ndioxane M Cr, W, n2 Mo, n1 from MCO5PPH2H and KH is described. All data confirm that the dioxane molecules in these complexes retain their identity as cyclic ethers. Subsequent reactions of CrCO5PPH2K.2dioxane with AIR2Br, RBr,Me,Et,CH2SiMe3 in THF lead to the formation of high yields of fully characterized compounds with the empirical formula CrCO5PPh2CH24OA1R2. The CH24O unit arises from the cleavage of a THF molecule. No THF aluminum adducts are observed. The compound CrCO5PPH2CH2OA1CH2SiMe32 which incorporates a new amphoteric ligand has also been characterized by an x-ray structural study.

Subject Categories:

  • Organic Chemistry
  • Metallurgy and Metallography
  • Crystallography
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE