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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B2PLYP/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 B2PLYP/STO-3G
 hartrees
Energy at 0K-184.097496
Energy at 298.15K 
HF Energy-183.993134
Nuclear repulsion energy86.815811
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 B2PLYP/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 3461 3461 0.00 431.55 0.32 0.49
2 Ag 2030 2030 0.00 13.14 0.34 0.51
3 Ag 1254 1254 0.00 41.27 0.72 0.84
4 Ag 930 930 0.00 23.52 0.22 0.36
5 Ag 338 338 0.00 1.20 0.11 0.20
6 Au 945 945 82.31 0.00 0.00 0.00
7 Au 239 239 0.04 0.00 0.00 0.00
8 Bg 723 723 0.00 17.04 0.75 0.86
9 Bu 3460 3460 10.25 0.00 0.62 0.77
10 Bu 1713 1713 11.44 0.00 0.00 0.00
11 Bu 1203 1203 311.53 0.00 0.00 0.00
12 Bu 294 294 3.05 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8294.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8294.9 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 B2PLYP/STO-3G
ABC
6.38244 0.13780 0.13489

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.355 -0.563 0.000
C2 -0.355 0.563 0.000
N3 0.355 -1.863 0.000
N4 -0.355 1.863 0.000
H5 1.378 -2.201 0.000
H6 -1.378 2.201 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33221.29952.52821.93103.2632
C21.33222.52821.29953.26321.9310
N31.29952.52823.79291.07704.4185
N42.52821.29953.79294.41851.0770
H51.93103.26321.07704.41855.1941
H63.26321.93104.41851.07705.1941

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 147.749 C1 N3 H5 108.325
C2 C1 N3 147.749 C2 N4 H6 108.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 C 0.052      
3 N -0.236      
4 N -0.236      
5 H 0.184      
6 H 0.184      


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 -17.573 -6.171 0.000
y -6.171 -22.733 0.000
z 0.000 0.000 -20.617
Traceless
 xyz
x 4.102 -6.171 0.000
y -6.171 -3.638 0.000
z 0.000 0.000 -0.464
Polar
3z2-r2-0.927
x2-y25.160
xy-6.171
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.544 -2.619 0.000
y -2.619 7.208 0.000
z 0.000 0.000 0.801


<r2> (average value of r2) Å2
<r2> 81.850
(<r2>)1/2 9.047