Accession Number:

AD0608145

Title:

VERY LOW-FREQUENCY INFRA-RED SPECTROSCOPY.

Descriptive Note:

Annual technical status rept. no. 3, 1 Oct 63-l Oct 64,

Corporate Author:

ROYAL HOLLOWAY COLL UNIV OF LONDON (ENGLAND)

Personal Author(s):

Report Date:

1964-10-01

Pagination or Media Count:

9.0

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.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE