Accession Number:

ADA326479

Title:

Lewis Acid-Base Studies of Triorganogallium Compounds with Organophosphines.

Descriptive Note:

Technical rept. no. 47,

Corporate Author:

STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY

Personal Author(s):

• Beachley, O. T., Jr.
• Maloney, John D.

Report Date:

1997-06-12

Pagination or Media Count:

20.0

Abstract:

The relative Lewis acidities of a series of triorganogallium compounds GaR3 R Me, Et, CH2CMe3, CH2SiMe3, CH2CMe2Ph and C6H2Me3 toward a common Lewis base HPPh2 and the relative Lewis basicities of a series of organophosphines which incorporate an acidic hydrogen HPRR PRR PPh2, PC6H112, PEt2 and PHC6H11 toward a common Lewis acid GaCH2CMe33 have been investigated and compared. Cryoscopic molecular weight data permitted an evaluation of the equilibrium constant for the dissociation of each of the adducts. The 31P NMR spectral data which were consistent with the molecular weight data were also used to study the relative rates of hydrocarbon elimination reactions to form R2GaPRR2.

Descriptors:

• *ACID BASE EQUILIBRIUM
• *ORGANIC COMPOUNDS
• *GALLIUM
• *PHOSPHINE
• MOLECULAR WEIGHT
• HYDROGEN
• SPECTRA
• HYDROCARBONS
• DISSOCIATION
• CRYOGENICS
• CHEMICAL EQUILIBRIUM
• PH FACTOR
• ELIMINATION REACTIONS

Subject Categories:

• Inorganic Chemistry
• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE