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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-148.650938
Energy at 298.15K-148.653298
HF Energy-148.494332
Nuclear repulsion energy59.756391
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 B2PLYP/6-31+G**
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 3643 3470 25.41      
2 A 1272 1211 0.02      
3 A 900 857 8.41      
4 A 727 692 114.57      
5 A 529 504 0.14      
6 B 3642 3469 145.45      
7 B 2211 2106 638.23      
8 B 894 851 476.38      
9 B 521 496 76.58      

Unscaled Zero Point Vibrational Energy (zpe) 7168.9 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 6827.7 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 B2PLYP/6-31+G**
ABC
12.48157 0.34207 0.34191

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.030
N2 0.000 1.227 -0.084
N3 0.000 -1.227 -0.084
H4 0.617 1.779 0.498
H5 -0.617 -1.779 0.498

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23191.23191.94041.9404
N21.23192.45311.01243.1233
N31.23192.45313.12331.0124
H41.94041.01243.12333.7665
H51.94043.12331.01243.7665

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.355 C1 N3 H5 119.355
N2 C1 N3 169.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.498      
2 N -0.555      
3 N -0.555      
4 H 0.306      
5 H 0.306      


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 2.283 2.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.249 4.595 0.000
y 4.595 -16.727 0.000
z 0.000 0.000 -17.830
Traceless
 xyz
x 0.030 4.595 0.000
y 4.595 0.812 0.000
z 0.000 0.000 -0.842
Polar
3z2-r2-1.683
x2-y2-0.521
xy4.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.438 0.173 0.000
y 0.173 6.984 0.000
z 0.000 0.000 2.431


<r2> (average value of r2) Å2
<r2> 39.542
(<r2>)1/2 6.288