Accession Number : AD0717742

Title :   Vibrational Relaxation of CO by Fe-Atoms.

Descriptive Note : Research rept.,

Corporate Author : AVCO EVERETT RESEARCH LAB EVERETT MASS

Personal Author(s) : VON Rosenberg,C. W. , Jr. ; Wray,Kurt L.

Report Date : DEC 1970

Pagination or Media Count : 23

Abstract : Shock tube investigations on Fe(CO)5 + Ar mixtures are described. Behind incident shocks we observe immediate decomposition of the iron pentacarbonyl to yield Fe and vibrationally cold CO; the CO is then very efficiently relaxed by the Fe-atoms. The results are interpreted to yield a relaxation time for CO infinitely dilute in Fe at 1 atm of P(tau)(CO, Fe) of about 0.06 atm micro sec for T = 1400-2900K. This is believed to be the first measurement of vibrational relaxation by metal atoms. (Author)

Descriptors :   (*IRON COMPOUNDS, RELAXATION TIME), (*METAL CARBONYLS, RELAXATION TIME), SHOCK TUBES, MOLECULAR ENERGY LEVELS, VIBRATION, ELECTRON TRANSITIONS, CARBON MONOXIDE, EXCITATION

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE