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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-186.533385
Energy at 298.15K 
HF Energy-186.533385
Nuclear repulsion energy88.169223
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 PBEPBE/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 3236 3192 0.00 967.83 0.32 0.48
2 Ag 2066 2037 0.00 19.78 0.34 0.51
3 Ag 1137 1121 0.00 40.63 0.74 0.85
4 Ag 920 908 0.00 33.83 0.28 0.44
5 Ag 373 368 0.00 4.07 0.41 0.58
6 Au 934 921 151.72 0.00 0.00 0.00
7 Au 250 246 0.51 0.00 0.00 0.00
8 Bg 706 696 0.00 17.01 0.75 0.86
9 Bu 3237 3193 11.32 0.00 0.00 0.00
10 Bu 1708 1685 91.27 0.00 0.00 0.00
11 Bu 1055 1040 501.56 0.00 0.00 0.00
12 Bu 281 277 10.17 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 7950.9 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 7841.2 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 PBEPBE/6-31G
ABC
8.31921 0.13932 0.13703

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.303 -0.586 0.000
C2 -0.303 0.586 0.000
N3 0.303 -1.853 0.000
N4 -0.303 1.853 0.000
H5 1.244 -2.300 0.000
H6 -1.244 2.300 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31991.26732.51391.95503.2747
C21.31992.51391.26733.27471.9550
N31.26732.51393.75621.04124.4323
N42.51391.26733.75624.43231.0412
H51.95503.27471.04124.43235.2297
H63.27471.95504.43231.04125.2297

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 152.654 C1 N3 H5 115.405
C2 C1 N3 152.654 C2 N4 H6 115.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.169      
2 C 0.169      
3 N -0.472      
4 N -0.472      
5 H 0.303      
6 H 0.303      


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 -19.841 -8.165 0.000
y -8.165 -22.627 0.000
z 0.000 0.000 -22.528
Traceless
 xyz
x 2.737 -8.165 0.000
y -8.165 -1.442 0.000
z 0.000 0.000 -1.294
Polar
3z2-r2-2.588
x2-y22.786
xy-8.165
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.796 -2.625 0.000
y -2.625 10.425 0.000
z 0.000 0.000 1.809


<r2> (average value of r2) Å2
<r2> 81.816
(<r2>)1/2 9.045