Cavity ringdown laser absorption spectroscopy and time-of-flight mass spectroscopy of jet cooled platinum silicides

J B Paul; J J Scherer; C P Collier; R J Saykally

doi:10.1063/1.471101

Cavity ringdown laser absorption spectroscopy and time-of-flight mass spectroscopy of jet cooled platinum silicides

J Chem Phys. 1996 Feb 22;104(8):2782-8. doi: 10.1063/1.471101.

Authors

J B Paul¹, J J Scherer, C P Collier, R J Saykally

Affiliation

¹ Department of Chemistry, UC Berkeley, California 94720, USA.

PMID: 11539202
DOI: 10.1063/1.471101

Abstract

The cavity ringdown technique (CRLAS) has been employed to measure the gas phase absorption spectrum of the platinum silicide molecule in the 350 nm region. All nine of the measured rovibronic bands are assigned to a single 1 sigma-1 sigma electronic transition, with a ground state vibrational frequency of omega "e = 549.0(3) cm-1, and a bond length of r"0 = 2.069(1) angstroms. The results of this study are compared with experimental data for the coinage metal silicides. Additionally, time-of-flight mass spectrometric results indicate that a variety of polyatomic metal silicides are formed in our molecular jet expansion.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Lasers*
Mass Spectrometry / methods*
Metals / chemistry
Molecular Structure
Physical Phenomena
Physics
Platinum Compounds*
Silicon Compounds*

Substances

Metals
Platinum Compounds
Silicon Compounds