Accession Number : ADA325492

Title :   Cyclopentadiene Elimination Reaction as a Route to Bis(Neopentyl)Gallium Phosphides, Crystal and Molecular Structures of (Me3CCh2)2GaPEt22 and (Me3CCH2)2GaP(C6H11)22.

Descriptive Note : Technical rept.,

Corporate Author : STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY

Personal Author(s) : Beachley, O. T., Jr. ; Maloney, John P. ; Rogers, Robin D.

PDF Url : ADA325492

Report Date : 12 MAY 1997

Pagination or Media Count : 30

Abstract : A major challenge for synthetic group 13 chemistry is to discover new reactions for the preparation of ultrapure precursors for electronic materials. Thus, the simplest and most direct route which involves the most limited number of synthetic steps from the fewest reagents of high purity at the lowest possible reaction temperature should minimize the introduction of impurities. Consequently, our research has been directed toward the use of the hydrocarbon elimination reaction and the search for novel examples which occur at or below room temperature. The cyclopentadiene elimination reaction between R2Ga(C5H5)(R=Me2, Et3) and either amines, phosphines or thiols is an example of an elimination reaction which typically occurs at or below room temperature. Our studies of these reactions, suggested that the association of the initial group 13-15 monomeric product and/or removal of the cyclopentadiene monomer by either dimerization or distillation was necessary to minimize the occurrence of the back-reaction.

Descriptors :   *CRYSTAL STRUCTURE, *CHEMICAL REACTIONS, *MOLECULAR STRUCTURE, *ELIMINATION, *CYCLIC COMPOUNDS, *GALLIUM PHOSPHIDES, *PENTADIENES, RADIATION, METHYL RADICALS, ORGANOMETALLIC COMPOUNDS, X RAYS, IMPURITIES, ROOM TEMPERATURE, AMINES, PURITY, HYDROCARBONS, LIGANDS, ISOTROPISM, MONOMERS, PHOSPHINE, STOICHIOMETRY, ETHYL RADICALS, DIMERS, ELIMINATION REACTIONS, DISTILLATION, PENTANES, THIOLS.

Subject Categories : Inorganic Chemistry
      Organic Chemistry
      Crystallography
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE