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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-186.663839
Energy at 298.15K 
HF Energy-186.663839
Nuclear repulsion energy88.894444
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 B3PW91/6-31G
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 3372 3230 0.00      
2 Ag 2180 2088 0.00      
3 Ag 1163 1113 0.00      
4 Ag 945 905 0.00      
5 Ag 373 357 0.00      
6 Au 971 930 171.30      
7 Au 256 245 0.25      
8 Bg 707 677 0.00      
9 Bu 3374 3231 0.57      
10 Bu 1768 1693 127.84      
11 Bu 1084 1039 540.65      
12 Bu 284 272 10.40      

Unscaled Zero Point Vibrational Energy (zpe) 8238.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 7890.0 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 B3PW91/6-31G
ABC
9.33908 0.14049 0.13840

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.262 -0.597 0.000
C2 -0.262 0.597 0.000
N3 0.262 -1.852 0.000
N4 -0.262 1.852 0.000
H5 1.187 -2.307 0.000
H6 -1.187 2.307 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30481.25502.50531.94313.2453
C21.30482.50531.25503.24531.9431
N31.25502.50533.74171.02994.4041
N42.50531.25503.74174.40411.0299
H51.94313.24531.02994.40415.1878
H63.24531.94314.40411.02995.1878

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.295 C1 N3 H5 116.171
C2 C1 N3 156.295 C2 N4 H6 116.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.189      
2 C 0.189      
3 N -0.507      
4 N -0.507      
5 H 0.318      
6 H 0.318      


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 -19.925 -8.533 0.000
y -8.533 -22.893 0.000
z 0.000 0.000 -22.507
Traceless
 xyz
x 2.775 -8.533 0.000
y -8.533 -1.677 0.000
z 0.000 0.000 -1.098
Polar
3z2-r2-2.196
x2-y22.968
xy-8.533
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.460 -2.401 0.000
y -2.401 10.363 0.000
z 0.000 0.000 1.768


<r2> (average value of r2) Å2
<r2> 81.165
(<r2>)1/2 9.009