Boron-Nitrogen Polymer Precursors.

Abstract

The synthesis of tractable, linear B-N polymers (RBNR) is usually prevented by the ready formation of the extremely stable trimeric borazene ring system (RBNR). In an attempt to circumvent this problem, we have prepared a series of new mono- and diboryl-amines, by Lithiation of the 1,3,2-diazaboracyclohexane ring system followed by quenching with electrophiles. The crystal and molecular structure has been determined by single crystal X-ray diffraction. Further chemistry of these compounds has been explored by reactions involving their pendent groups. For example, the bis(trimethylsilyl) compound 5 reacts with PhBCl2 via bond cleavage. Also, the bis(dimethylamino)boryl derivative undergoes trans-amination reactions with 1,3-diaminopropane to give compounds containing two or three BN2C3 rings linded together. Preliminary thermolysis studies show that some of the diborylamines are potentially useful precursors to boron-nitrogen oligomers/polymers. Keywords: Aminoborane, Boron-nitrogen, B-N polymer, Diborylamine.

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Document Details

Document Type
Technical Report
Publication Date
Aug 11, 1987
Accession Number
ADA183560

Entities

People

  • Donn A. Dubois
  • Robert H. Neilson
  • Souradet Y. Shaw

Organizations

  • Texas Christian University

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Communities of Interest

  • Air Platforms
  • Counter IED

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemistry
  • Christianity
  • Classification
  • Diffraction
  • Materials
  • Mechanical Properties
  • Military Research
  • Molecular Structure
  • Molecular Weight
  • Quenching
  • Security
  • Silicon Carbide
  • Single Crystals
  • Spectra
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Polymer Science and Technology