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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-184.989863
Energy at 298.15K 
HF Energy-184.631988
Nuclear repulsion energy89.343772
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 CID/3-21G*
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 3329 3098 0.00      
2 Ag 2369 2205 0.00      
3 Ag 1226 1141 0.00      
4 Ag 954 887 0.00      
5 Ag 339 316 0.00      
6 Au 1029 957 160.45      
7 Au 290 270 0.01      
8 Bg 801 745 0.00      
9 Bu 3330 3099 7.04      
10 Bu 1786 1662 99.82      
11 Bu 1220 1135 489.17      
12 Bu 310 289 41.47      

Unscaled Zero Point Vibrational Energy (zpe) 8492.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 7901.9 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 CID/3-21G*
ABC
10.76906 0.13981 0.13801

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.005 -0.638 0.000
C2 -0.005 0.638 0.000
N3 -0.005 -1.886 0.000
N4 0.005 1.886 0.000
H5 0.921 -2.344 0.000
H6 -0.921 2.344 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27661.24742.52391.93653.1230
C21.27662.52391.24743.12301.9365
N31.24742.52393.77131.03344.3280
N42.52391.24743.77134.32801.0334
H51.93653.12301.03344.32805.0376
H63.12301.93654.32801.03345.0376

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 179.118 C1 N3 H5 115.903
C2 C1 N3 179.118 C2 N4 H6 115.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability