return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B97D3/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 B97D3/STO-3G
 hartrees
Energy at 0K-184.322715
Energy at 298.15K 
HF Energy-184.322715
Nuclear repulsion energy86.294490
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 B97D3/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 3265 3265 0.00 440.53 0.32 0.49
2 Ag 1956 1956 0.00 23.65 0.32 0.48
3 Ag 1237 1237 0.00 37.92 0.73 0.84
4 Ag 919 919 0.00 24.13 0.22 0.37
5 Ag 369 369 0.00 0.90 0.42 0.60
6 Au 906 906 80.74 0.00 0.00 0.00
7 Au 232 232 0.00 0.00 0.00 0.00
8 Bg 715 715 0.00 18.06 0.75 0.86
9 Bu 3264 3264 16.64 0.00 0.00 0.00
10 Bu 1675 1675 11.56 0.00 0.00 0.00
11 Bu 1187 1187 270.85 0.00 0.00 0.00
12 Bu 288 288 3.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8006.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8006.0 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 B97D3/STO-3G
ABC
5.80375 0.13737 0.13419

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.200 -0.642 0.000
C2 -0.200 0.642 0.000
N3 -0.200 -1.889 0.000
N4 0.200 1.889 0.000
H5 0.692 -2.515 0.000
H6 -0.692 2.515 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.34561.30882.53141.93643.2812
C21.34562.53141.30883.28121.9364
N31.30882.53143.79891.08954.4316
N42.53141.30883.79894.43161.0895
H51.93643.28121.08954.43165.2174
H63.28121.93644.43161.08955.2174

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 144.983 C1 N3 H5 107.336
C2 C1 N3 144.983 C2 N4 H6 107.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.046      
2 C 0.046      
3 N -0.231      
4 N -0.231      
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
Primitive
 xyz
x -21.386 -6.330 0.000
y -6.330 -18.486 0.000
z 0.000 0.000 -20.695
Traceless
 xyz
x -1.795 -6.330 0.000
y -6.330 2.554 0.000
z 0.000 0.000 -0.759
Polar
3z2-r2-1.519
x2-y2-2.899
xy-6.330
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.599 -0.906 0.000
y -0.906 8.361 0.000
z 0.000 0.000 0.830


<r2> (average value of r2) Å2
<r2> 82.162
(<r2>)1/2 9.064