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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: TPSSh/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 TPSSh/6-31G**
 hartrees
Energy at 0K-186.819721
Energy at 298.15K 
HF Energy-186.819721
Nuclear repulsion energy89.108491
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**
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 3373 3233 0.00 780.16 0.31 0.48
2 Ag 2104 2017 0.00 28.27 0.35 0.52
3 Ag 1186 1137 0.00 30.27 0.75 0.86
4 Ag 937 899 0.00 34.97 0.27 0.42
5 Ag 343 329 0.00 4.26 0.30 0.47
6 Au 958 918 131.37 0.00 0.00 0.00
7 Au 251 240 0.00 0.00 0.00 0.00
8 Bg 704 675 0.00 14.36 0.75 0.86
9 Bu 3373 3234 2.19 0.00 0.00 0.00
10 Bu 1757 1684 140.68 0.00 0.00 0.00
11 Bu 1137 1090 422.30 0.00 0.00 0.00
12 Bu 286 274 6.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8203.7 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 7864.8 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 TPSSh/6-31G**
ABC
8.15873 0.14222 0.13979

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.296 -0.587 0.000
C2 -0.296 0.587 0.000
N3 0.296 -1.839 0.000
N4 -0.296 1.839 0.000
H5 1.251 -2.222 0.000
H6 -1.251 2.222 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31401.25202.49641.89403.2066
C21.31402.49641.25203.20661.8940
N31.25202.49643.72451.02924.3454
N42.49641.25203.72454.34541.0292
H51.89403.20661.02924.34545.1002
H63.20661.89404.34541.02925.1002

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.221 C1 N3 H5 111.877
C2 C1 N3 153.221 C2 N4 H6 111.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.248      
2 C 0.248      
3 N -0.530      
4 N -0.530      
5 H 0.281      
6 H 0.281      


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 3.885 -2.495 0.000
y -2.495 10.065 0.000
z 0.000 0.000 2.052


<r2> (average value of r2) Å2
<r2> 80.232
(<r2>)1/2 8.957