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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-185.948573
Energy at 298.15K 
HF Energy-185.580576
Nuclear repulsion energy88.696384
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 CISD/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 3474 3258 0.00      
2 Ag 2210 2072 0.00      
3 Ag 1221 1145 0.00      
4 Ag 952 892 0.00      
5 Ag 394 370 0.00      
6 Au 1003 941 179.15      
7 Au 241 226 0.03      
8 Bg 704 661 0.00      
9 Bu 3474 3258 1.59      
10 Bu 1775 1665 132.35      
11 Bu 1148 1077 578.39      
12 Bu 294 276 9.74      

Unscaled Zero Point Vibrational Energy (zpe) 8445.3 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 7920.0 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 CISD/6-31G
ABC
9.43600 0.13958 0.13755

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.260 -0.601 0.000
C2 -0.260 0.601 0.000
N3 0.260 -1.859 0.000
N4 -0.260 1.859 0.000
H5 1.180 -2.310 0.000
H6 -1.180 2.310 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30921.25862.51451.94073.2470
C21.30922.51451.25863.24701.9407
N31.25862.51453.75491.02414.4106
N42.51451.25863.75494.41061.0241
H51.94073.24701.02414.41065.1869
H63.24701.94074.41061.02415.1869

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.608 C1 N3 H5 116.084
C2 C1 N3 156.608 C2 N4 H6 116.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability