return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3LYPultrafine/daug-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 B3LYPultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-186.887068
Energy at 298.15K 
HF Energy-186.887068
Nuclear repulsion energy89.797711
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 B3LYPultrafine/daug-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 3383 3383 0.00 781.49 0.31 0.47
2 Ag 2150 2150 0.00 24.58 0.44 0.61
3 Ag 1175 1175 0.00 33.57 0.46 0.63
4 Ag 937 937 0.00 50.84 0.15 0.26
5 Ag 316 316 0.00 2.61 0.55 0.71
6 Au 961 961 118.25 0.00 0.00 0.00
7 Au 254 254 0.01 0.00 0.00 0.00
8 Bg 676 676 0.00 3.72 0.75 0.86
9 Bu 3383 3383 9.51 0.00 0.00 0.00
10 Bu 1751 1751 187.13 0.00 0.00 0.00
11 Bu 1141 1141 379.10 0.00 0.00 0.00
12 Bu 282 282 5.72 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8204.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8204.1 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 B3LYPultrafine/daug-cc-pVTZ
ABC
9.51831 0.14293 0.14081

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.233 -0.604 0.000
C2 -0.233 0.604 0.000
N3 0.233 -1.844 0.000
N4 -0.233 1.844 0.000
H5 1.172 -2.250 0.000
H6 -1.172 2.250 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.29371.24012.49101.89513.1801
C21.29372.49101.24013.18011.8951
N31.24012.49103.71641.02314.3274
N42.49101.24013.71644.32741.0231
H51.89513.18011.02314.32745.0730
H63.18011.89514.32741.02315.0730

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 158.909 C1 N3 H5 113.377
C2 C1 N3 158.909 C2 N4 H6 113.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.463      
2 C 0.463      
3 N -0.791      
4 N -0.791      
5 H 0.328      
6 H 0.328      


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 -20.661 -7.216 0.000
y -7.216 -24.018 0.000
z 0.000 0.000 -23.163
Traceless
 xyz
x 2.930 -7.216 0.000
y -7.216 -2.106 0.000
z 0.000 0.000 -0.824
Polar
3z2-r2-1.647
x2-y23.357
xy-7.216
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.969 -1.956 0.000
y -1.956 11.701 0.000
z 0.000 0.000 3.828


<r2> (average value of r2) Å2
<r2> 80.354
(<r2>)1/2 8.964