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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-186.254257
Energy at 298.15K 
HF Energy-185.669786
Nuclear repulsion energy89.125902
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 MP3/6-31G*
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 3455 3242 0.00      
2 Ag 2130 2000 0.00      
3 Ag 1229 1154 0.00      
4 Ag 951 893 0.00      
5 Ag 352 330 0.00      
6 Au 977 917 148.36      
7 Au 247 232 0.05      
8 Bg 709 666 0.00      
9 Bu 3456 3243 4.08      
10 Bu 1788 1678 126.24      
11 Bu 1179 1107 429.45      
12 Bu 290 272 6.05      

Unscaled Zero Point Vibrational Energy (zpe) 8381.5 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 7866.8 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 MP3/6-31G*
ABC
7.86258 0.14261 0.14007

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 -0.582 0.000
C2 -0.312 0.582 0.000
N3 0.312 -1.833 0.000
N4 -0.312 1.833 0.000
H5 1.268 -2.207 0.000
H6 -1.268 2.207 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.32001.25152.49421.88533.2047
C21.32002.49421.25153.20471.8853
N31.25152.49423.71911.02624.3377
N42.49421.25153.71914.33771.0262
H51.88533.20471.02624.33775.0898
H63.20471.88534.33771.02625.0898

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 151.819 C1 N3 H5 111.348
C2 C1 N3 151.819 C2 N4 H6 111.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability