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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-148.786055
Energy at 298.15K-148.788480
HF Energy-148.786055
Nuclear repulsion energy60.427763
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-pVTZ
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 3643 3483 26.73      
2 A 1304 1247 0.01      
3 A 926 885 12.72      
4 A 738 705 93.94      
5 A 548 524 0.17      
6 B 3641 3480 143.10      
7 B 2253 2154 700.54      
8 B 925 884 439.23      
9 B 550 526 85.93      

Unscaled Zero Point Vibrational Energy (zpe) 7263.5 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 6943.9 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-pVTZ
ABC
12.46472 0.35018 0.35017

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.011
N2 0.000 1.213 -0.078
N3 0.000 -1.213 -0.078
H4 0.622 1.745 0.512
H5 -0.622 -1.745 0.512

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21651.21651.91911.9191
N21.21652.42651.00883.0798
N31.21652.42653.07981.0088
H41.91911.00883.07983.7047
H51.91913.07981.00883.7047

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.882 C1 N3 H5 118.882
N2 C1 N3 171.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.166      
2 N -0.257      
3 N -0.257      
4 H 0.173      
5 H 0.173      


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 2.051 2.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.634 4.116 0.000
y 4.116 -16.251 0.000
z 0.000 0.000 -17.137
Traceless
 xyz
x 0.060 4.116 0.000
y 4.116 0.635 0.000
z 0.000 0.000 -0.695
Polar
3z2-r2-1.390
x2-y2-0.383
xy4.116
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.479 0.288 0.000
y 0.288 6.178 0.000
z 0.000 0.000 2.451


<r2> (average value of r2) Å2
<r2> 38.495
(<r2>)1/2 6.204