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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-186.813040
Energy at 298.15K 
HF Energy-186.813040
Nuclear repulsion energy89.079478
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 3347 3211 0.00 771.08 0.32 0.48
2 Ag 2102 2017 0.00 27.85 0.35 0.52
3 Ag 1201 1152 0.00 31.37 0.75 0.86
4 Ag 938 900 0.00 34.64 0.26 0.42
5 Ag 347 333 0.00 4.27 0.31 0.47
6 Au 961 922 134.07 0.00 0.00 0.00
7 Au 251 241 0.00 0.00 0.00 0.00
8 Bg 706 677 0.00 14.32 0.75 0.86
9 Bu 3347 3211 3.85 0.00 0.00 0.00
10 Bu 1756 1684 137.92 0.00 0.00 0.00
11 Bu 1150 1104 427.47 0.00 0.00 0.00
12 Bu 286 275 6.55 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8196.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 7863.7 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
8.13395 0.14220 0.13975

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 0.297 -0.586 0.000
C2 -0.297 0.586 0.000
N3 0.297 -1.838 0.000
N4 -0.297 1.838 0.000
H5 1.253 -2.224 0.000
H6 -1.253 2.224 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31391.25262.49611.89663.2092
C21.31392.49611.25263.20921.8966
N31.25262.49613.72461.03054.3483
N42.49611.25263.72464.34831.0305
H51.89663.20921.03054.34835.1055
H63.20921.89664.34831.03055.1055

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.090 C1 N3 H5 111.983
C2 C1 N3 153.090 C2 N4 H6 111.983
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 0.239      
2 C 0.239      
3 N -0.575      
4 N -0.575      
5 H 0.336      
6 H 0.336      


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 3.863 -2.489 0.000
y -2.489 10.050 0.000
z 0.000 0.000 2.031


<r2> (average value of r2) Å2
<r2> 80.279
(<r2>)1/2 8.960