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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-186.275882
Energy at 298.15K 
HF Energy-185.678204
Nuclear repulsion energy89.074354
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 CCD/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 3500 3282 0.00      
2 Ag 2146 2013 0.00      
3 Ag 1216 1140 0.00      
4 Ag 946 887 0.00      
5 Ag 336 315 0.00      
6 Au 975 914 137.18      
7 Au 246 230 0.14      
8 Bg 695 652 0.00      
9 Bu 3501 3283 1.76      
10 Bu 1774 1663 110.09      
11 Bu 1178 1104 393.40      
12 Bu 289 271 5.38      

Unscaled Zero Point Vibrational Energy (zpe) 8400.9 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 7876.7 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 CCD/6-31G**
ABC
8.11346 0.14197 0.13953

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.296 -0.588 0.000
C2 -0.296 0.588 0.000
N3 0.296 -1.842 0.000
N4 -0.296 1.842 0.000
H5 1.251 -2.208 0.000
H6 -1.251 2.208 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31701.25342.50081.88043.1957
C21.31702.50081.25343.19571.8804
N31.25342.50083.73041.02314.3350
N42.50081.25343.73044.33501.0231
H51.88043.19571.02314.33505.0757
H63.19571.88044.33501.02315.0757

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.276 C1 N3 H5 110.984
C2 C1 N3 153.276 C2 N4 H6 110.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability