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Structure Data of Free Polyatomic Molecules
47
LIF
CF3S
State
Energy [eV]
r0(C−S) [Å]
r0(C−F) [Å]
θ0(F−C−F) [deg]
pressure
Trifluoromethylthio
~
X 2E3/2
0.00
1.828 a)
1.327 b)
109.5 a)
~
A 2A 1
3.272
1.949 a)
1.327 b)
109.4 a)
CF3S molecules were produced by passing (CF3S)2 diluted with helium through a high
~
~
pulsed valve, after which it was photolyzed by a 248 nm excimer laser. The A 2A1 − X 2E3/2
transition was studied by laser-induced fluorescence excited by a pulse-amplified frequencydoubled CW dye laser.
The molecular parameters were obtained from the A- and B-rotational constants, by assuming
the value for r0(C−F) from related molecules.
a
) Error limits were not given in the original paper.
) Assumed.
b
Yang, M.-C., Williamson, J.M., Miller, T.A.: J. Mol. Spectrosc. 186 (1997) 1.
Landolt-Börnstein
New Series II/28B
C3v
F3C−S⋅