Structure Data of Free Polyatomic Molecules
102
MW
CH2N2
a
Carbodiimide
Methanediimine
r0
N–H
C=N
Å a)
1.0039(7)
1.2247(2)
rs
N–H
C=N
Å a)
1.00737(9)
1.22422(4)
r ρm
N–H
C=N
C2
HN=C=NH
θ0
deg a)
119.10(7)
171.6(2)
89.35(9)
θs
H–N=C
N=C=N
τ(HN…NH) b)
deg a)
118.635(8)
170.630(4)
88.986(5)
Å a)
θ ρm
deg a)
1.0135(6)
1.2228(2)
H–N=C
N=C=N
τ(HN…NH) b)
118.28(9)
171.2(3)
88.8(1)
H–N=C
N=C=N
τ(HN…NH) b)
) Estimated standard errors.
) Dihedral angle between the two H–N bonds projected onto the bc plane.
b
Jabs, W., Winnewisser, M., Belov, S.P., Lewen, F., Maiwald, F., Winnewisser, G.: Mol. Phys.
97 (1999) 213.
Landolt-Börnstein
New Series II/28B