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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-148.642724
Energy at 298.15K-148.645143
HF Energy-148.642724
Nuclear repulsion energy60.301028
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/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 3641 3490 21.00      
2 A 1307 1253 0.09      
3 A 930 891 11.57      
4 A 747 716 117.23      
5 A 546 523 0.35      
6 B 3640 3489 100.93      
7 B 2275 2181 617.35      
8 B 933 894 467.70      
9 B 548 525 86.58      

Unscaled Zero Point Vibrational Energy (zpe) 7283.0 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 6980.8 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 PBE1PBE/6-311G*
ABC
12.64149 0.34855 0.34843

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.016
N2 0.000 1.215 -0.078
N3 0.000 -1.215 -0.078
H4 0.621 1.761 0.502
H5 -0.621 -1.761 0.502

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21881.21881.92951.9295
N21.21882.43031.01023.0951
N31.21882.43033.09511.0102
H41.92951.01023.09513.7346
H51.92953.09511.01023.7346

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.622 C1 N3 H5 119.622
N2 C1 N3 171.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.556      
2 N -0.621      
3 N -0.621      
4 H 0.343      
5 H 0.343      


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 2.264 2.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.597 4.458 0.000
y 4.458 -16.113 0.000
z 0.000 0.000 -17.190
Traceless
 xyz
x 0.054 4.458 0.000
y 4.458 0.780 0.000
z 0.000 0.000 -0.835
Polar
3z2-r2-1.670
x2-y2-0.484
xy4.458
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.968 0.321 0.000
y 0.321 5.938 0.000
z 0.000 0.000 1.936


<r2> (average value of r2) Å2
<r2> 38.626
(<r2>)1/2 6.215