Vibrational Spectra of Linear BC3 and Linear B2C2 in Argon at 10K(a)

Abstract

The vibrational spectra of linear BC3 and linear B2C2 in an argon matrix at 10 K have been observed for the first time by Fourier transform infrared spectroscopy. Mixtures of boron and carbon powders were vaporized in a resistively heated (^3000 K) oven. BC3 was produced during co-deposition of the vapors with argon onto a CsI substrate maintained at 10 K; B2C2 was observed only after annealing the matrices. Frequencies measured at 2002.1 and 1512.5/cm have been assigned to the v1(sigma) and v2(sigma) B-C stretching fundamentals of linear BC3 and a frequency measured at 955.0/cm has been assigned to the v3(sigma(sub u)) stretching fundamental of linear symmetric BC2B. These assignments are based on FTIR measurements of the majority of the BC3 and B2C2 isotopomer frequencies and are consistent with the results from Rittby's collaborative ab-initio study.

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Document Details

Document Type
Technical Report
Publication Date
Nov 16, 1998
Accession Number
ADA408396

Entities

People

  • Carl William Larson
  • Jose D. Presilla-marquez
  • Patrick G. Carrick

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Air Force
  • Air Force Research Laboratories
  • Annealing
  • Energy
  • Frequency
  • Geometry
  • High Energy
  • Infrared Spectra
  • Infrared Spectroscopy
  • Intensity
  • Materials
  • Military Research
  • Molecular Spectroscopy
  • Spectra
  • Spectroscopy
  • Vibrational Spectra

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