SiH3CN
Silyl cyanide, cyanosilane
Species tag 057503
Version1*
Date of EntrySep. 2014
ContributorH. S. P. Müller

The experimental data were taken from
(1) D. Priem, J. Cosléou, J. Demaison, I. Merke, W. Stahl, W. Jerzembeck, and H. Bürger, 1998, J. Mol. Spectrosc. 191, 183.
The predictions should be reliable throughout.
14N hyperfine splitting was resolved in laboratory measurements, but are deemed to be unimportant for astronomical observations.
Note: At low temperatures, it may be necessary to discern between A-SiH3CN and E-SiH3CN. The A state levels are described by K = 3n, those of E state by K = 3n ± 1. The nuclear spin-weight ratio is 2 : 1 for A-SiH3CN with K > 0 and all other states, respectively. The dipole moment was determined in (1).

Lines Listed1622
Frequency / GHz<980
Max. J99
log STR0-7.0
log STR1-5.0
Isotope Corr.-0.042
Egy / cm–10.0
 µa / D3.440
 µb / D 
 µc / D 
 A / MHz84740.5
 B / MHz4973.005
 C / MHzB
 Q(300.0)25564.2671
 Q(225.0)16598.7723
 Q(150.0)9032.9053
 Q(75.00)3193.9051
 Q(37.50)1130.1762
 Q(18.75)401.6393
 Q(9.375)147.8145
 Q(5.000)63.1400
 Q(2.725)28.8534
detected in ISM/CSMtentatively


Database maintained by Holger S. P. Müller and Sven Thorwirth, programming by D. Roth and F. Schloeder