Accession Number:

ADA317917

Title:

Synthesis and Studies of Aluminum-Nitrogen, -Phosphorus and Arsenic Cycles and Clusters.

Descriptive Note:

Final rept. 1 Jun 93-30 Sep 96,

Corporate Author:

DUKE UNIV DURHAM NC DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1996-11-04

Pagination or Media Count:

6.0

Abstract:

The attempted dehalosilylation reactions between AlX3 X Cl, Br and PSiMe33 in toluene in 11 mole ratios afforded only the adducts Cl3Al.PSiMe33 1 and Br3Al.PSiMe33 2, respectively. Compounds 1 and 2 were characterized by 1H, 13C, 27Al, and 31P solution NMR spectroscopy, as well as partial elemental analysis. In addition, the solid state structures of the toluene solvates of 1 and 2 were determined by single-crystal X-ray analysis. Characterization revealed that the solid solvated adducts 1 and 2 are isostructural and their crystals are isomorphous. In each compound, the Al and the P atoms reside in tetrahedral environments, with each X3Al.PSiMe33 X Cl, Br molecule associated with one interstitial toluene molecule in the crystals. These adducts are noteworthy in that they possess extremely short, essentially equal Al-P bond lengths For 1 Al-P 2.3924 A, and for 2 Al-P 2.3916 A, which are the shortest found to date in aluminum-phosphorus molecular species. p3

Subject Categories:

  • Inorganic Chemistry
  • Organic Chemistry
  • Physical Chemistry
  • Crystallography
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE