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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-148.767535
Energy at 298.15K-148.769935
HF Energy-148.767535
Nuclear repulsion energy60.335587
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 B1B95/6-311G**
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 3624 3479 28.24      
2 A 1302 1250 0.09      
3 A 909 873 9.06      
4 A 734 704 103.21      
5 A 538 517 0.28      
6 B 3622 3478 124.69      
7 B 2267 2176 609.98      
8 B 910 874 421.17      
9 B 541 519 83.25      

Unscaled Zero Point Vibrational Energy (zpe) 7223.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6935.1 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 B1B95/6-311G**
ABC
12.42858 0.34921 0.34913

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.015
N2 0.000 1.215 -0.079
N3 0.000 -1.215 -0.079
H4 0.625 1.750 0.508
H5 -0.625 -1.750 0.508

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21841.21841.92201.9220
N21.21842.42951.01033.0858
N31.21842.42953.08581.0103
H41.92201.01033.08583.7158
H51.92203.08581.01033.7158

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.876 C1 N3 H5 118.876
N2 C1 N3 171.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.426      
2 N -0.445      
3 N -0.445      
4 H 0.232      
5 H 0.232      


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 2.141 2.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.485 4.215 0.000
y 4.215 -16.189 0.000
z 0.000 0.000 -17.043
Traceless
 xyz
x 0.131 4.215 0.000
y 4.215 0.575 0.000
z 0.000 0.000 -0.705
Polar
3z2-r2-1.411
x2-y2-0.296
xy4.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.026 0.342 0.000
y 0.342 5.939 0.000
z 0.000 0.000 1.996


<r2> (average value of r2) Å2
<r2> 38.517
(<r2>)1/2 6.206