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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: QCISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at QCISD/Def2TZVPP
 hartrees
Energy at 0K-186.463774
Energy at 298.15K 
HF Energy-185.751536
Nuclear repulsion energy89.473363
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 QCISD/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3460 3460 0.00      
2 Ag 2159 2159 0.00      
3 Ag 1193 1193 0.00      
4 Ag 929 929 0.00      
5 Ag 294 294 0.00      
6 Au 964 964 121.36      
7 Au 247 247 0.06      
8 Bg 663 663 0.00      
9 Bu 3461 3461 17.07      
10 Bu 1739 1739 154.15      
11 Bu 1169 1169 389.43      
12 Bu 283 283 5.73      

Unscaled Zero Point Vibrational Energy (zpe) 8280.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8280.4 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 QCISD/Def2TZVPP
ABC
9.13809 0.14198 0.13981

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.242 -0.604 0.000
C2 -0.242 0.604 0.000
N3 0.242 -1.851 0.000
N4 -0.242 1.851 0.000
H5 1.190 -2.226 0.000
H6 -1.190 2.226 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30211.24622.50241.87843.1721
C21.30212.50241.24623.17211.8784
N31.24622.50243.73291.01994.3208
N42.50241.24623.73294.32081.0199
H51.87843.17211.01994.32085.0483
H63.17211.87844.32081.01995.0483

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 158.198 C1 N3 H5 111.583
C2 C1 N3 158.198 C2 N4 H6 111.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability