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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-186.804533
Energy at 298.15K 
HF Energy-186.804533
Nuclear repulsion energy89.855252
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 B3PW91/aug-cc-pVTZ
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 3405 3287 0.00 729.66 0.30 0.46
2 Ag 2175 2099 0.00 26.20 0.41 0.58
3 Ag 1168 1127 0.00 29.19 0.50 0.66
4 Ag 941 908 0.00 50.57 0.16 0.27
5 Ag 313 302 0.00 2.61 0.56 0.72
6 Au 961 928 118.24 0.00 0.00 0.00
7 Au 254 245 0.00 0.00 0.00 0.00
8 Bg 676 653 0.00 3.47 0.75 0.86
9 Bu 3406 3287 11.57 0.00 0.00 0.00
10 Bu 1766 1704 186.22 0.00 0.00 0.00
11 Bu 1136 1096 369.67 0.00 0.00 0.00
12 Bu 283 273 6.19 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8241.5 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 7953.9 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 B3PW91/aug-cc-pVTZ
ABC
9.52167 0.14307 0.14095

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.229 -0.605 0.000
C2 -0.229 0.605 0.000
N3 0.229 -1.844 0.000
N4 -0.229 1.844 0.000
H5 1.171 -2.244 0.000
H6 -1.171 2.244 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.29301.23912.49071.89023.1735
C21.29302.49071.23913.17351.8902
N31.23912.49073.71561.02304.3202
N42.49071.23913.71564.32021.0230
H51.89023.17351.02304.32025.0612
H63.17351.89024.32021.02305.0612

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 159.241 C1 N3 H5 113.014
C2 C1 N3 159.241 C2 N4 H6 113.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.255      
2 C 0.255      
3 N -0.398      
4 N -0.398      
5 H 0.143      
6 H 0.143      


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 -20.422 -7.240 0.000
y -7.240 -23.615 0.000
z 0.000 0.000 -22.944
Traceless
 xyz
x 2.858 -7.240 0.000
y -7.240 -1.931 0.000
z 0.000 0.000 -0.926
Polar
3z2-r2-1.852
x2-y23.193
xy-7.240
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.863 -1.909 0.000
y -1.909 11.514 0.000
z 0.000 0.000 3.743


<r2> (average value of r2) Å2
<r2> 80.088
(<r2>)1/2 8.949