Structure Data of Free Polyatomic Molecules
46
LIF
CF3O
State
Energy [eV]
r0(C−O) [Å]
r0(C−F) [Å]
θ0(F−C−F) [deg]
pressure
Trifluoromethoxy
~
X 2E3/2
0.00
1.361 a)
1.327 b)
109.3 a)
~
A 2A 1
3.537
1.384 a)
1.327 b)
108.8 a)
CF3O molecules were produced by passing CF3OF diluted with helium through a high
~
~
pulsed valve, after which it was photolyzed by a 193nm 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−O⋅