Structure Data of Free Polyatomic Molecules
213
MW
HIN2
Isotopic species
14
N2 · IH
14
N2 · ID
15
N2 · IH
14 15
N N · IH
15 14
N N · IH
Hydrogen iodide – dinitrogen (1/1)
(weakly bound complex)
r0(Rcm) [Å]
4.197872(67)
4.174903(72)
4.19797(10)
4.18047(10)
4.21539(41)
r0(N...I) [Å]
3.69748(93)
3.65476(99)
3.6954(14)
3.6946(14)
3.6980(34)
θ0(α) [deg] a)
25.61(22)
23.97(25)
25.14 b)
25.14(35)
25.5(14)
C∞v
(effective symmetry class)
(large-amplitude motion)
HI · N2
θ0(β) [deg] a)
23.4546(91)
19.060(10)
23.343(10)
23.353(10)
23.444(15)
The rotational transitions of 14N2· IH, 14N2· ID and
N2· IH show a doubling, which is a consequence
of tunneling associated with the interchange of the
two nitrogen nuclei. The intermolecular stretching
force constant kσ is 1.46152 N m–1.
15
a
) The oscillation angles of the N2 and HI moieties, see figure.
) Assumed.
b
Jabs, W., McIntosh, A.L., Lucchese, R.R., Bevan, J.W., Brugh, D.J., Suenram, R.D.:
J. Chem. Phys. 113 (2000) 249.
Landolt-Börnstein
New Series II/28A