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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.681872
Energy at 298.15K-148.684281
HF Energy-148.681872
Nuclear repulsion energy60.403508
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/6-311+G(3df,2p)
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 3641 3641 27.39      
2 A 1306 1306 0.00      
3 A 906 906 12.89      
4 A 720 720 92.73      
5 A 549 549 0.56      
6 B 3638 3638 159.68      
7 B 2254 2254 713.05      
8 B 906 906 428.78      
9 B 553 553 83.79      

Unscaled Zero Point Vibrational Energy (zpe) 7236.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7236.4 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/6-311+G(3df,2p)
ABC
12.73471 0.34969 0.34967

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.016
N2 0.000 1.213 -0.079
N3 0.000 -1.213 -0.079
H4 0.616 1.762 0.502
H5 -0.616 -1.762 0.502

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21641.21641.92891.9289
N21.21642.42541.00933.0929
N31.21642.42543.09291.0093
H41.92891.00933.09293.7333
H51.92893.09291.00933.7333

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.856 C1 N3 H5 119.856
N2 C1 N3 171.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.401      
2 N -0.906      
3 N -0.906      
4 H 0.206      
5 H 0.206      


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 1.975 1.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.007 4.147 0.000
y 4.147 -16.322 0.000
z 0.000 0.000 -17.516
Traceless
 xyz
x -0.088 4.147 0.000
y 4.147 0.939 0.000
z 0.000 0.000 -0.851
Polar
3z2-r2-1.702
x2-y2-0.685
xy4.147
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.987 0.229 0.000
y 0.229 6.702 0.000
z 0.000 0.000 2.959


<r2> (average value of r2) Å2
<r2> 38.736
(<r2>)1/2 6.224