A shock-tube measurement of the SiO(E1Σ+ ? X1Σ+) transition moment |
| |
Authors: | Chul Park |
| |
Institution: | Ames Research Center, NASA, Moffett Field, CA 94035, U.S.A. |
| |
Abstract: | The sum of the squares of the electronic transition moments, Σ|Re|2, for the E1Σ+ ?X1Σ+ band system of SiO has been determined from absorption measurements conducted in the reflected-shock region of a shock tube. The test gas was produced by shock-heating a mixture of SiCl4, N2O and Ar, and the spectra were recorded photographically in the 150–230 nm wavelength range. The values of the Σ|Re|2 were determined by comparing the measured absorption spectra with those produced by a line-be-line synthetic spectrum calculation. The value of the Σ|Re|2 so deduced at an r-centroid value of 3.0 Bohr was 0.86±0.10 atomic units. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|