Structure Data of Free Polyatomic Molecules
400
MW
C3H6Kr
Isotopic species
C3H6 · 86Kr
C3H6 · 84Kr
C3H6 · 83Kr
C3H6 · 82Kr
C3H5D · 86Kr b)
C3H5D · 84Kr b)
C3H5D · 82Kr b)
DC3H5 · 86Kr c)
DC3H5 · 84Kr c)
Cyclopropane – krypton (1/1)
(weakly bound complex)
r0(Rcm) [Å] a)
3.90578(300)
3.90591(300)
3.90599(300)
3.90606(300)
3.90094(300)
3.90107(300)
3.90122(300)
3.90297(300)
3.90310(300)
C3v
(effective symmetry class)
(large-amplitude motion)
. Kr
The observed spectra are in accord with those of prolate symmetric top molecules where Kr is
positioned on the C3 axis of the cyclopropane subunit above its symmetry plane. The observed
centrifugal distortion constants indicate that the complex is comparatively rigid in the radial
coordinate. Transitions of two isomers were observed for complexes that contain
monodeuterated cyclopropane. The intensities of transitions of the D-bonded species were
considerably higher than those of the H-bonded isomers indicating that the angular motion
of Kr is much less restricted.
a
) Uncertainties were not estimated in the original paper.
) D-bonded complex.
c
) H-bonded complex.
b
Xu, Y., Jäger, W.: J. Chem. Phys. 106 (1997) 7968.
Landolt-Börnstein
New Series II/28C