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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-184.196017
Energy at 298.15K 
HF Energy-184.196017
Nuclear repulsion energy87.430154
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 HSEh1PBE/STO-3G
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 3455 3052 0.00 431.26 0.32 0.48
2 Ag 2203 1946 0.00 23.45 0.34 0.50
3 Ag 1266 1118 0.00 37.28 0.73 0.85
4 Ag 968 855 0.00 26.76 0.25 0.39
5 Ag 316 279 0.00 1.03 0.23 0.38
6 Au 969 856 87.80 0.00 0.00 0.00
7 Au 243 214 0.12 0.00 0.00 0.00
8 Bg 698 616 0.00 15.48 0.75 0.86
9 Bu 3453 3050 10.65 0.00 0.00 0.00
10 Bu 1784 1576 16.15 0.00 0.00 0.00
11 Bu 1238 1094 275.86 0.00 0.00 0.00
12 Bu 292 258 4.88 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8443.7 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 7456.6 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 HSEh1PBE/STO-3G
ABC
7.28053 0.13817 0.13560

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.294 -0.585 0.000
C2 -0.294 0.585 0.000
N3 0.294 -1.873 0.000
N4 -0.294 1.873 0.000
H5 1.315 -2.214 0.000
H6 -1.315 2.214 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30961.28792.52741.92223.2283
C21.30962.52741.28793.22831.9222
N31.28792.52743.79181.07644.3919
N42.52741.28793.79184.39191.0764
H51.92223.22831.07644.39195.1496
H63.22831.92224.39191.07645.1496

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.317 C1 N3 H5 108.448
C2 C1 N3 153.317 C2 N4 H6 108.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.051      
2 C 0.051      
3 N -0.244      
4 N -0.244      
5 H 0.193      
6 H 0.193      


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 -17.723 -6.387 0.000
y -6.387 -22.714 0.000
z 0.000 0.000 -20.604
Traceless
 xyz
x 3.935 -6.387 0.000
y -6.387 -3.551 0.000
z 0.000 0.000 -0.385
Polar
3z2-r2-0.770
x2-y24.991
xy-6.387
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.274 -2.420 0.000
y -2.420 7.316 0.000
z 0.000 0.000 0.774


<r2> (average value of r2) Å2
<r2> 81.434
(<r2>)1/2 9.024