RESEARCH AND DEVELOPMENT TO SYNTHESIZE AND ISOLATE LESSER OR UNKNOWN BORANES

Abstract

Kinetic data for the decomposition of nonaborane-15 at 30 were obtained mass spectrometrically, and the rate constant for the observed first order reaction was determined. Nonaborane-15 decomposes into octaborane, which in turn is thermally unstable and decomposes further, probably into hexaborane-10, H and polyborane solids. A tentative rate constant for the decomposition reaction of octaborane, also first order, has been inferred, based on the assumption that its rate of formation equals the rate of decomposition of nonaborane (B9H15 yields B8H14 + (BH) solid). The decomposition reactions of tetraborane-10 and pentaborane-11 were also studied mass spectrometrically, and both were found to produce hexaborane-10 and pentaborane-9. Attempts made to prepare dipentaboryl, B10H16, by coupling bromopentaborane over an Ullman catalyst have been negative. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 10, 1962
Accession Number
AD0287496

Entities

People

  • H.e. Landesman
  • J.f. Ditter
  • R.e. Williams

Tags

DTIC Thesaurus Topics

  • Catalysts
  • Chemical Reaction Properties
  • Chemical Reactions
  • Couplings
  • Decomposition
  • Rate Of Formation

Fields of Study

  • Chemistry

Readers

  • Combustion science or combustion engineering.
  • Organic Chemistry

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference