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Detection and characterization of singly deuterated silylene, SiHD, via optical spectroscopy.

Authors :
Kokkin, Damian L.
Tongmei Ma
Steimle, Timothy
Sears, Trevor J.
Source :
Journal of Chemical Physics. 2016, Vol. 144 Issue 24, p1-13. 13p. 2 Diagrams, 6 Charts, 6 Graphs.
Publication Year :
2016

Abstract

Singly deuterated silylene has been detected and characterized in the gas-phase using high-resolution, two-dimensional, optical spectroscopy. Rotationally resolved lines in the 000X¹A' → A¹A″ band are assigned to both c-type perpendicular transition and additional parallel, axis-switching induced bands. The extracted rotational constants were combined with those for SiH2 and SiD2 to determine an improved equilibrium bond length, rSiH, and bond angle, θ, of 1.5137 ± 0.0003 Å and 92.04? ± 0.05?, and 1.4853 ± 0.0005 Å and 122.48? ± 0.08? for the X¹A' (0,0,0) and A¹A″(0,0,0) state respectively. The dispersed fluorescence consists of a long progression in the A¹A″(0,0,0) →X¹A'(0,ν2,0) emission which was analyzed to produce vibrational parameters. A strong quantum level dependence of the rotationally resolved radiative decay curves is analyzed. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00219606
Volume :
144
Issue :
24
Database :
Academic Search Index
Journal :
Journal of Chemical Physics
Publication Type :
Academic Journal
Accession number :
116562034
Full Text :
https://doi.org/10.1063/1.4954702