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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-148.664735
Energy at 298.15K-148.667142
HF Energy-148.664735
Nuclear repulsion energy60.322737
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 HSEh1PBE/6-311G**
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 3636 3492 30.17      
2 A 1307 1255 0.09      
3 A 912 876 9.71      
4 A 734 705 105.13      
5 A 542 521 0.28      
6 B 3634 3490 130.91      
7 B 2274 2184 619.78      
8 B 913 877 425.46      
9 B 545 523 85.77      

Unscaled Zero Point Vibrational Energy (zpe) 7247.8 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 6960.8 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 HSEh1PBE/6-311G**
ABC
12.44880 0.34903 0.34895

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.014
N2 0.000 1.215 -0.079
N3 0.000 -1.215 -0.079
H4 0.625 1.751 0.508
H5 -0.625 -1.751 0.508

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21851.21851.92361.9236
N21.21852.43001.01083.0873
N31.21852.43003.08731.0108
H41.92361.01083.08733.7181
H51.92363.08731.01083.7181

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.990 C1 N3 H5 118.990
N2 C1 N3 171.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.444      
2 N -0.453      
3 N -0.453      
4 H 0.231      
5 H 0.231      


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 2.159 2.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.542 4.257 0.000
y 4.257 -16.225 0.000
z 0.000 0.000 -17.099
Traceless
 xyz
x 0.120 4.257 0.000
y 4.257 0.595 0.000
z 0.000 0.000 -0.716
Polar
3z2-r2-1.431
x2-y2-0.317
xy4.257
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.028 0.331 0.000
y 0.331 5.934 0.000
z 0.000 0.000 1.999


<r2> (average value of r2) Å2
<r2> 38.565
(<r2>)1/2 6.210