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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-186.831386
Energy at 298.15K 
HF Energy-186.831386
Nuclear repulsion energy89.391267
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 TPSSh/6-31G(2df,p)
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 3362 3244 0.00 732.46 0.31 0.48
2 Ag 2139 2064 0.00 25.53 0.36 0.53
3 Ag 1172 1131 0.00 26.79 0.70 0.82
4 Ag 934 901 0.00 36.20 0.25 0.39
5 Ag 313 302 0.00 2.18 0.39 0.56
6 Au 964 930 115.53 0.00 0.00 0.00
7 Au 256 247 0.05 0.00 0.00 0.00
8 Bg 690 666 0.00 8.71 0.75 0.86
9 Bu 3362 3245 3.11 0.00 0.00 0.00
10 Bu 1749 1688 131.96 0.00 0.00 0.00
11 Bu 1139 1099 382.66 0.00 0.00 0.00
12 Bu 291 281 5.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8185.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 7898.9 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 TPSSh/6-31G(2df,p)
ABC
8.88917 0.14224 0.14000

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.255 -0.598 0.000
C2 -0.255 0.598 0.000
N3 0.255 -1.846 0.000
N4 -0.255 1.846 0.000
H5 1.208 -2.234 0.000
H6 -1.208 2.234 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30051.24812.49681.89263.1872
C21.30052.49681.24813.18721.8926
N31.24812.49683.72731.02804.3340
N42.49681.24813.72734.33401.0280
H51.89263.18721.02804.33405.0782
H63.18721.89264.33401.02805.0782

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.869 C1 N3 H5 112.144
C2 C1 N3 156.869 C2 N4 H6 112.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.201      
2 C 0.201      
3 N -0.478      
4 N -0.478      
5 H 0.277      
6 H 0.277      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.946 -2.269 0.000
y -2.269 10.259 0.000
z 0.000 0.000 2.555


<r2> (average value of r2) Å2
<r2> 80.095
(<r2>)1/2 8.950