Accession Number : ADA338752

Title :   Chemistry Involving the Preparation, Isolation, and Immobilization of Nanocrystalline and/or Microcrystalline Boron Arsenide, Boron Phosphide, & Boron Antimonide

Descriptive Note : Final rept. 1 Jul 94-31 Dec 97

Corporate Author : DUKE UNIV DURHAM NC DEPT OF CHEMISTRY

Personal Author(s) : Wells, Richard L.

PDF Url : ADA338752

Report Date : DEC 1997

Pagination or Media Count : 3

Abstract : During this report period, publications 1 and 2 (see below) appeared in print (the contents of the papers were reported in two previous "Interim Technical Reports"). Michael Lube prepared the adduct Cl3B.Sb(Sb(SiMe3)3, the third Lewis acid-base adduct of boron and antimony to be structurally characterized. This adduct along with Br3 B.Sb(SiMe3)3 and I3B.Sb(SiMe3)3 are the subject of publication 3 (see below) with the manuscript being written by Michael. Based on the various data obtained, it appeared that the black powders obtained from the thermolysis of these adducts were a mixture of nanocrystalline Sb (hex) and amorphous BSb (data summarized in Michaels's?- PhD. dissertation, 9/6/96, Duke University). Further investigations, on halo-boron-arsenic systems by Michael, with some assistance from Richard Jouet, (see publication 4 below) resulted in the isolation and structural characterization of I3B.As(SiMe3)3, as well as the isolation of X-ray quality crystals of the Cl3B.As(SiMe3)3 I2BAs(SiMe3)22 (preparations previously reported in the 1996 "Interim Technical report").

Descriptors :   *PREPARATION, *ISOLATION, *CRYSTALLIZATION, *ARSENIDES, *PHOSPHIDES, *ANTIMONIDES, *BORON COMPOUNDS, MICROSTRUCTURE, METHYL RADICALS, CRYSTALS, X RAYS, CHEMISTRY, SILICON, IODINE, CHLORIDES, RESTRAINT, ANTIMONY, HALOGENS, BLACK POWDER.

Subject Categories : Inorganic Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE