SiC3H
Propynylidenyl silylidyne, 2Πi
Species tag 065512
Version1*
Date of EntryDec. 2014
ContributorH. S. P. Müller

Transition frequencies in the lower energy spin-ladder 2Π3/2 were reported by
(1) D. L. Kokkin, N. J. Reilly, R. C. Fortenberry, T. D. Crawford, and M. C. McCarthy, 2014, J. Chem. Phys. 141, Art. No. 044310.
The sign of ASO was incorrect in (1). The value employed here is an average of SiCH and that calculated for SiC2N.
Prediction in the lower energy spin-ladder may be reliable up to 120 GHz or even higher. Predictions in the higher energy spin-ladder 2Π1/2 should be viewed with very great caution.
The dipole moment is from an ab initio calculation by
(2) H. Sun, N. Tan, H. Q. He, X. M. Pan, Z. M. Su, and R. S. Wang, 2008, Theor. Chem. Acc. 119, 501.

Lines Listed568
Frequency / GHz< 400
Max. J77
log STR0-10.0
log STR1-5.0
Isotope Corr.-0.0497
Egy / (cm–1)0.0
 µa / D0.773
 µb / D 
 µc / D 
 A 
 B2604.88
 C 
 Q(300.0)16536.1932
 Q(225.0)11867.0374
 Q(150.0)7305.6667
 Q(75.00)3057.8674
 Q(37.50)1296.2485
 Q(18.75)611.2604
 Q(9.375)307.7568
detected in ISM/CSMno


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