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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-148.687335
Energy at 298.15K-148.689531
HF Energy-148.687335
Nuclear repulsion energy59.584193
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/LANL2DZ
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 3778 3778 18.95      
2 A 1300 1300 0.00      
3 A 698 698 11.43      
4 A 638 638 231.43      
5 A 535 535 2.60      
6 B 3778 3778 280.97      
7 B 2294 2294 726.34      
8 B 696 696 640.06      
9 B 545 545 118.75      

Unscaled Zero Point Vibrational Energy (zpe) 7130.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7130.8 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 wB97X-D/LANL2DZ
ABC
17.38254 0.33594 0.33582

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.033
N2 0.000 1.226 -0.072
N3 0.000 -1.226 -0.072
H4 0.538 1.931 0.406
H5 -0.538 -1.931 0.406

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23061.23062.03912.0391
N21.23062.45211.00753.2382
N31.23062.45213.23821.0075
H42.03911.00753.23824.0095
H52.03913.23821.00754.0095

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 131.046 C1 N3 H5 131.046
N2 C1 N3 170.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 N -0.403      
3 N -0.403      
4 H 0.324      
5 H 0.324      


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 2.368 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.192 4.964 0.000
y 4.964 -14.066 0.000
z 0.000 0.000 -17.833
Traceless
 xyz
x -1.243 4.964 0.000
y 4.964 3.447 0.000
z 0.000 0.000 -2.204
Polar
3z2-r2-4.408
x2-y2-3.126
xy4.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.677 0.169 0.000
y 0.169 6.523 0.000
z 0.000 0.000 1.655


<r2> (average value of r2) Å2
<r2> 39.711
(<r2>)1/2 6.302