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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-148.636882
Energy at 298.15K-148.639299
HF Energy-148.636882
Nuclear repulsion energy59.985125
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 PBE1PBE/aug-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 3621 3482 23.94      
2 A 1297 1248 0.00      
3 A 934 899 10.31      
4 A 731 703 88.55      
5 A 540 519 0.20      
6 B 3618 3480 143.50      
7 B 2244 2158 689.51      
8 B 934 898 405.77      
9 B 543 523 73.46      

Unscaled Zero Point Vibrational Energy (zpe) 7231.6 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 6953.9 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 PBE1PBE/aug-cc-pVDZ
ABC
12.10585 0.34536 0.34527

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.018
N2 0.000 1.222 -0.082
N3 0.000 -1.222 -0.082
H4 0.628 1.751 0.516
H5 -0.628 -1.751 0.516

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22631.22631.92531.9253
N21.22632.44451.01513.0968
N31.22632.44453.09681.0151
H41.92531.01513.09683.7197
H51.92533.09681.01513.7197

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.098 C1 N3 H5 118.098
N2 C1 N3 170.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.227      
2 N -0.146      
3 N -0.146      
4 H 0.032      
5 H 0.032      


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 1.995 1.995
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.033 4.144 0.000
y 4.144 -16.638 0.000
z 0.000 0.000 -17.542
Traceless
 xyz
x 0.057 4.144 0.000
y 4.144 0.649 0.000
z 0.000 0.000 -0.707
Polar
3z2-r2-1.413
x2-y2-0.395
xy4.144
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.070 0.265 0.000
y 0.265 6.797 0.000
z 0.000 0.000 3.043


<r2> (average value of r2) Å2
<r2> 39.124
(<r2>)1/2 6.255