Structure Data of Free Polyatomic Molecules
42
MW
Ar2H3N
r0
Å a)
b
Ar...cm ) 3.835(50) c)
Ar...Ar
3.818(50) c)
Ammonia – argon (1/2)
(weakly bound complex)
θ0
θ(Ar2 · NH3) d)
θ(Ar2 · NDH2) d)
θ(Ar2 · ND2H) d)
θ(Ar2 · ND3) d)
G24 (NH3 · 2Ar, ND3 · 2Ar)
G8 (ND2H · 2Ar, NH2D · 2Ar)
(effective symmetry class)
(large-amplitude motion)
NH3 · 2Ar
deg a)
63.0 or 117.0(10)
64.0 or 116.0(10)
64.9 or 115.1(10)
66.1 or 113.9(10)
a
) Uncertainties were not estimated in the original paper.
) cm denotes the center of mass of the ammonia.
c
) Only crude estimates were given for these two parameters.
d
) See figure for the definition. The values apply to the
antisymmetric inversion state.
b
Van Wijngaarden, J., Jäger, W.: Phys. Chem. Chem. Phys. 4 (2002) 4883.
Landolt-Börnstein
New Series II/28A