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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-32.124284
Energy at 298.15K 
HF Energy-32.124284
Nuclear repulsion energy44.454023
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 B3LYP/CEP-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 3414 3306 0.00 690.68 0.33 0.49
2 Ag 1966 1904 0.00 50.63 0.33 0.50
3 Ag 1127 1091 0.00 35.71 0.71 0.83
4 Ag 897 869 0.00 40.78 0.22 0.37
5 Ag 395 383 0.00 8.65 0.38 0.55
6 Au 925 895 167.24 0.00 0.00 0.00
7 Au 250 242 1.15 0.00 0.00 0.00
8 Bg 748 724 0.00 19.07 0.75 0.86
9 Bu 3415 3307 12.08 0.00 0.00 0.00
10 Bu 1704 1650 145.56 0.00 0.00 0.00
11 Bu 1020 987 671.96 0.00 0.00 0.00
12 Bu 285 276 15.19 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8071.1 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 7816.0 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 B3LYP/CEP-31G
ABC
7.09013 0.13745 0.13483

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.189 -0.659 0.000
C2 -0.189 0.659 0.000
N3 -0.189 -1.876 0.000
N4 0.189 1.876 0.000
H5 0.566 -2.584 0.000
H6 -0.566 2.584 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.37231.27452.53601.96133.3306
C21.37232.53601.27453.33061.9613
N31.27452.53603.77201.03544.4766
N42.53601.27453.77204.47661.0354
H51.96133.33061.03544.47665.2912
H63.33061.96134.47661.03545.2912

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 146.696 C1 N3 H5 115.840
C2 C1 N3 146.696 C2 N4 H6 115.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.288      
2 C -0.288      
3 N 0.012      
4 N 0.012      
5 H 0.277      
6 H 0.277      


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 -25.022 -8.035 0.000
y -8.035 -18.102 0.000
z 0.000 0.000 -23.053
Traceless
 xyz
x -4.444 -8.035 0.000
y -8.035 5.936 0.000
z 0.000 0.000 -1.491
Polar
3z2-r2-2.983
x2-y2-6.920
xy-8.035
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.478 -0.719 0.000
y -0.719 11.886 0.000
z 0.000 0.000 2.353


<r2> (average value of r2) Å2
<r2> 67.112
(<r2>)1/2 8.192