Rovibrational Spectroscopy of the v(5) = 1 Level of (28)SiDF(3).
The nu(5) fundamental band of trifluorosilane-d (SiDF(3)) at 627 cm(-1) was studied for the first time by high-resolution FTIR spectroscopy at a resolution of 2.4 x 10(-3) cm(-1). The analysis was performed simultaneously with available microwave and newly measured submillimeter-wave data in the approximation of an isolated degenerate fundamental level of a C(3 Kv) symmetric top molecule leading to a standard deviation of 0.22 x 10(-3) cm(-1) for the reproduction of the infrared wavenumbers, 36 kHz for the microwave, and 198 kHz for the submillimeter-wave frequencies, respectively. The unitary equivalence between the two reductions (Q and D) of the effective Hamiltonian applied in the analysis is demonstrated. Copyright 2000 Academic Press.
Pracna
P
J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague 8, 182 23, Czech Republic
Margulès
L
Cosléou
J
Demaison
J
Mkadmi
EB
Bürger
H