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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HF/SDD
 hartrees
Energy at 0K-185.605585
Energy at 298.15K 
HF Energy-185.605585
Nuclear repulsion energy89.718215
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 HF/SDD
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 3689 3322 0.00 615.26 0.33 0.50
2 Ag 2444 2201 0.00 135.77 0.29 0.45
3 Ag 1230 1107 0.00 27.06 0.57 0.72
4 Ag 985 887 0.00 61.27 0.27 0.43
5 Ag 360 324 0.00 10.21 0.50 0.67
6 Au 1068 962 210.29 0.00 0.00 0.00
7 Au 280 252 0.00 0.00 0.00 0.00
8 Bg 711 640 0.00 18.32 0.75 0.86
9 Bu 3691 3323 50.75 0.00 0.00 0.00
10 Bu 1859 1674 262.53 0.00 0.00 0.00
11 Bu 1184 1066 618.82 0.00 0.00 0.00
12 Bu 309 279 22.79 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8904.7 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 8017.8 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 HF/SDD
ABC
11.89303 0.14066 0.13902

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.128 -0.627 0.000
C2 -0.128 0.627 0.000
N3 0.128 -1.869 0.000
N4 -0.128 1.869 0.000
H5 1.024 -2.337 0.000
H6 -1.024 2.337 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27891.24282.50901.93073.1792
C21.27892.50901.24283.17921.9307
N31.24282.50903.74751.01054.3610
N42.50901.24283.74754.36101.0105
H51.93073.17921.01054.36105.1024
H63.17921.93074.36101.01055.1024

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 168.485 C1 N3 H5 117.555
C2 C1 N3 168.485 C2 N4 H6 117.555
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 C 0.052      
3 N -0.362      
4 N -0.362      
5 H 0.311      
6 H 0.311      


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 -21.500 -9.599 0.000
y -9.599 -24.965 0.000
z 0.000 0.000 -23.487
Traceless
 xyz
x 2.726 -9.599 0.000
y -9.599 -2.471 0.000
z 0.000 0.000 -0.254
Polar
3z2-r2-0.509
x2-y23.465
xy-9.599
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.880 -1.663 0.000
y -1.663 11.521 0.000
z 0.000 0.000 2.070


<r2> (average value of r2) Å2
<r2> 81.641
(<r2>)1/2 9.036