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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-186.584351
Energy at 298.15K 
HF Energy-186.584351
Nuclear repulsion energy89.460661
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3418 3258 0.00 717.79 0.32 0.48
2 Ag 2203 2100 0.00 27.24 0.38 0.55
3 Ag 1199 1143 0.00 27.15 0.75 0.86
4 Ag 956 911 0.00 36.80 0.29 0.45
5 Ag 330 315 0.00 4.00 0.34 0.51
6 Au 973 927 143.05 0.00 0.00 0.00
7 Au 256 244 0.06 0.00 0.00 0.00
8 Bg 692 659 0.00 12.17 0.75 0.86
9 Bu 3419 3259 2.47 0.00 0.00 0.00
10 Bu 1799 1715 165.35 0.00 0.00 0.00
11 Bu 1159 1105 401.02 0.00 0.00 0.00
12 Bu 287 273 6.90 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8345.2 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 7953.8 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/6-31G**
ABC
8.94432 0.14233 0.14010

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.253 -0.600 0.000
C2 -0.253 0.600 0.000
N3 0.253 -1.846 0.000
N4 -0.253 1.846 0.000
H5 1.204 -2.231 0.000
H6 -1.204 2.231 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30251.24552.49751.88843.1845
C21.30252.49751.24553.18451.8884
N31.24552.49753.72581.02664.3296
N42.49751.24553.72584.32961.0266
H51.88843.18451.02664.32965.0712
H63.18451.88844.32961.02665.0712

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 157.132 C1 N3 H5 112.065
C2 C1 N3 157.132 C2 N4 H6 112.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.247      
2 C 0.247      
3 N -0.593      
4 N -0.593      
5 H 0.346      
6 H 0.346      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.604 -7.554 0.000
y -7.554 -23.196 0.000
z 0.000 0.000 -22.457
Traceless
 xyz
x 3.223 -7.554 0.000
y -7.554 -2.166 0.000
z 0.000 0.000 -1.057
Polar
3z2-r2-2.114
x2-y23.592
xy-7.554
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.573 -2.258 0.000
y -2.258 10.025 0.000
z 0.000 0.000 2.002


<r2> (average value of r2) Å2
<r2> 80.119
(<r2>)1/2 8.951