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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: wB97X-D/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-148.739668
Energy at 298.15K-148.742094
HF Energy-148.739668
Nuclear repulsion energy60.246597
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/6-31G(2df,p)
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 3658 3658 29.75      
2 A 1304 1304 0.01      
3 A 926 926 13.44      
4 A 749 749 95.48      
5 A 549 549 0.04      
6 B 3656 3656 134.61      
7 B 2268 2268 610.73      
8 B 923 923 429.91      
9 B 556 556 87.38      

Unscaled Zero Point Vibrational Energy (zpe) 7294.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7294.6 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/6-31G(2df,p)
ABC
12.33611 0.34811 0.34803

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.011
N2 0.000 1.217 -0.078
N3 0.000 -1.217 -0.078
H4 0.627 1.745 0.513
H5 -0.627 -1.745 0.513

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22061.22061.92121.9212
N21.22062.43481.01053.0854
N31.22062.43483.08541.0105
H41.92121.01053.08543.7090
H51.92123.08541.01053.7090

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.578 C1 N3 H5 118.578
N2 C1 N3 171.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.491      
2 N -0.547      
3 N -0.547      
4 H 0.301      
5 H 0.301      


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 2.048 2.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.340 4.074 0.000
y 4.074 -16.000 0.000
z 0.000 0.000 -16.853
Traceless
 xyz
x 0.087 4.074 0.000
y 4.074 0.596 0.000
z 0.000 0.000 -0.682
Polar
3z2-r2-1.365
x2-y2-0.340
xy4.074
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.177 0.366 0.000
y 0.366 5.860 0.000
z 0.000 0.000 2.136


<r2> (average value of r2) Å2
<r2> 38.480
(<r2>)1/2 6.203