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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-26.623395
Energy at 298.15K-26.625789
HF Energy-26.623395
Nuclear repulsion energy31.631057
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/CEP-31G*
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 3646 3646 23.41      
2 A 1293 1293 0.08      
3 A 949 949 5.59      
4 A 755 755 110.82      
5 A 530 530 0.01      
6 B 3645 3645 113.60      
7 B 2239 2239 713.65      
8 B 948 948 439.34      
9 B 530 530 92.43      

Unscaled Zero Point Vibrational Energy (zpe) 7267.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7267.1 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/CEP-31G*
ABC
11.54028 0.33835 0.33834

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.017
N2 0.000 1.237 -0.083
N3 0.000 -1.237 -0.083
H4 0.644 1.740 0.527
H5 -0.644 -1.740 0.527

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24151.24151.92401.9240
N21.24152.47491.01963.1067
N31.24152.47493.10671.0196
H41.92401.01963.10673.7105
H51.92403.10671.01963.7105

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.279 C1 N3 H5 116.279
N2 C1 N3 170.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.517      
2 N -0.068      
3 N -0.068      
4 H 0.327      
5 H 0.327      


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 2.344 2.344
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.534 4.627 0.000
y 4.627 -16.602 0.000
z 0.000 0.000 -17.131
Traceless
 xyz
x 0.332 4.627 0.000
y 4.627 0.230 0.000
z 0.000 0.000 -0.562
Polar
3z2-r2-1.125
x2-y20.068
xy4.627
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.169 0.289 0.000
y 0.289 6.092 0.000
z 0.000 0.000 2.137


<r2> (average value of r2) Å2
<r2> 33.288
(<r2>)1/2 5.770