VERY LOW-FREQUENCY INFRA-RED SPECTROSCOPY.

Abstract

One major alteration has been made to the low frequency infrared spectrometer described in a previous report. Because two motors had burned out driving the chopper, the drive system was redesigned, bringing it out of the vacuum chamber. The present drive is through a flexible coupling, an Edwards vacuum rotary seal, and a bevelled gear. A one and one-half meter gas cell has been designed, its primary design features being simplicity and the ability to increase the optical path length several fold by multiple reflection. Measurements of spectra in the far infrared are reported for the following compounds: sulfur dicyanide, boron tribromide, boron triiodide, azulene, boron fluoride (B2F4), and tetrakis (dimethylamino) diboron. Spectral frequencies observed for a series of cyclic organo tin compounds are also reported.

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1964
Accession Number
AD0608145

Entities

People

  • Arthur Finch
  • D. Steele

Organizations

  • Royal Holloway, University of London

Tags

DTIC Thesaurus Topics

  • Couplings
  • Flexible Couplings
  • Frequency
  • Gas Cells
  • Infrared Spectrometers
  • Measurement
  • Measuring Instruments
  • Rotary Seals
  • Spectra
  • Spectrometers
  • Spectroscopy
  • Tin Compounds
  • Vacuum
  • Vacuum Chambers
  • Very Low Frequency

Readers

  • Electrical Engineering
  • Image Processing and Computer Vision.
  • Organic Chemistry