Structure Data of Free Polyatomic Molecules
30
MW
ArH3N
Ammonia – argon (1/1)
(weakly bound complex)
Isotopic species
Ar · ND3 s b)
a b)
Ar · NHD2 s b)
a b)
Ar · NH2D s b)
a b)
r0(Rcm) [Å] a)
3.8151(3)
3.8152(3)
3.8236(3)
3.8235(3)
3.8314(3)
3.8310(3)
Cs
(effective symmetry class)
(large-amplitude motion)
NH3 · Ar
The stretching force constant and wavenumber are 0.889 N m–1 and 33.6 cm–1, respectively.
a
) Uncertainties were not estimated in the original paper.
) s and a denote the symmetric and antisymmetric inversion states, respectively.
b
van Wijngaarden, J., Jäger, W.: J. Chem. Phys. 114 (2001) 3968.
MW
r0
Rcm (s) a)
Rcm (a) a)
Å
3.815158(4)
3.802398(15)
θ0
deg
<θ> (s) a) b) 62.00(50) c)
<θ> (a) a) b) 66.78(97)
ND3 · Ar
Results obtained on 40Ar · ND3.
a
) s and a denote the symmetric (Σ00) and antisymmetric (Π10) inversion states, respectively.
) Average angle between the C3 axis of the ND3 and Rcm.
c
) Uncertainty was not estimated in the original paper.
b
Melnik, D.G., Miller, T.A., De Lucia, F.C.: J. Mol. Spectrosc. 214 (2002) 202.
II/25A(2, 34)
Landolt-Börnstein
New Series II/28A