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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: TPSSh/STO-3G

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/STO-3G
 hartrees
Energy at 0K-184.431900
Energy at 298.15K 
HF Energy-184.431900
Nuclear repulsion energy86.838423
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/STO-3G
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 3369 3369 0.00 447.50 0.32 0.49
2 Ag 2049 2049 0.00 25.25 0.33 0.49
3 Ag 1257 1257 0.00 38.50 0.73 0.85
4 Ag 943 943 0.00 25.47 0.23 0.38
5 Ag 356 356 0.00 0.89 0.28 0.44
6 Au 939 939 82.12 0.00 0.00 0.00
7 Au 238 238 0.00 0.00 0.00 0.00
8 Bg 720 720 0.00 18.85 0.75 0.86
9 Bu 3368 3368 12.31 0.00 0.00 0.00
10 Bu 1729 1729 14.13 0.00 0.00 0.00
11 Bu 1211 1211 291.31 0.00 0.00 0.00
12 Bu 293 293 3.53 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8236.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8236.4 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/STO-3G
ABC
6.25613 0.13820 0.13522

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.359 -0.561 0.000
C2 -0.359 0.561 0.000
N3 0.359 -1.860 0.000
N4 -0.359 1.860 0.000
H5 1.390 -2.192 0.000
H6 -1.390 2.192 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33151.29892.52451.93013.2616
C21.33152.52451.29893.26161.9301
N31.29892.52453.78781.08364.4132
N42.52451.29893.78784.41321.0836
H51.93013.26161.08364.41325.1917
H63.26161.93014.41321.08365.1917

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 147.373 C1 N3 H5 107.874
C2 C1 N3 147.373 C2 N4 H6 107.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 C 0.048      
3 N -0.233      
4 N -0.233      
5 H 0.185      
6 H 0.185      


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 2.628 -2.663 0.000
y -2.663 7.231 0.000
z 0.000 0.000 0.805


<r2> (average value of r2) Å2
<r2> 81.663
(<r2>)1/2 9.037