Structure Data of Free Polyatomic Molecules
238
IR
H 2I 2
r0(Rcm) [Å] a)
4.563(2)
Hydrogen iodide dimer
(weakly bound complex)
r0(I…I) [Å] a)
4.575(6)
θ0(ϕ1) [deg ]
θ0(ϕ2) [deg ]
60 to 120
0 to 30
Cs
(effective symmetry class)
(large-amplitude motion)
HI ⋅ HI
The structure was determined from the rovibrational spectrum
in the ν2 vibrational band. The geometries of the monomer
subunits were assumed to be unchanged upon complexation.
a
) Uncertainty was unidentified.
McIntosh, A.L., Wang, Z., Lucchese, R.R., Bevan, J.W.: Chem. Phys. Lett. 328 (2000) 153.
Landolt-Börnstein
New Series II/28A