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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-148.738029
Energy at 298.15K-148.740440
HF Energy-148.738029
Nuclear repulsion energy59.959041
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at wB97X-D/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3614 3442 29.67      
2 A 1300 1238 0.07      
3 A 952 907 8.37      
4 A 756 720 90.75      
5 A 526 501 0.03      
6 B 3612 3441 115.19      
7 B 2260 2153 603.85      
8 B 950 905 393.51      
9 B 530 505 73.29      

Unscaled Zero Point Vibrational Energy (zpe) 7249.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 6906.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at wB97X-D/cc-pVDZ
ABC
11.64307 0.34565 0.34563

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.012
N2 0.000 1.224 -0.081
N3 0.000 -1.224 -0.081
H4 0.642 1.727 0.529
H5 -0.642 -1.727 0.529

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22711.22711.91381.9138
N21.22712.44721.01873.0806
N31.22712.44723.08061.0187
H41.91381.01873.08063.6849
H51.91383.08061.01873.6849

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.585 C1 N3 H5 116.585
N2 C1 N3 171.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 N -0.228      
3 N -0.228      
4 H 0.150      
5 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.116 2.116
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.299 4.043 0.000
y 4.043 -16.319 0.000
z 0.000 0.000 -16.818
Traceless
 xyz
x 0.270 4.043 0.000
y 4.043 0.239 0.000
z 0.000 0.000 -0.510
Polar
3z2-r2-1.019
x2-y20.021
xy4.043
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.940 0.394 0.000
y 0.394 5.740 0.000
z 0.000 0.000 1.904


<r2> (average value of r2) Å2
<r2> 38.695
(<r2>)1/2 6.221