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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G
 hartrees
Energy at 0K-185.994761
Energy at 298.15K 
HF Energy-185.572738
Nuclear repulsion energy87.667233
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 MP2=FULL/6-31G
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 3373 3205 0.00 697.66 0.32 0.48
2 Ag 1995 1895 0.00 19.78 0.45 0.62
3 Ag 1166 1108 0.00 50.30 0.75 0.86
4 Ag 904 859 0.00 20.87 0.27 0.42
5 Ag 397 377 0.00 5.04 0.05 0.10
6 Au 954 907 165.09 0.00 0.75 0.86
7 Au 236 224 0.31 0.00 0.00 0.00
8 Bg 744 707 0.00 9.94 0.75 0.86
9 Bu 3376 3208 2.54 0.00 0.00 0.00
10 Bu 1667 1584 51.73 0.00 0.00 0.00
11 Bu 1058 1005 610.35 0.00 0.00 0.00
12 Bu 295 280 9.78 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8081.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 7678.6 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 MP2=FULL/6-31G
ABC
7.67466 0.13842 0.13597

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.173 -0.645 0.000
C2 -0.173 0.645 0.000
N3 -0.173 -1.876 0.000
N4 0.173 1.876 0.000
H5 0.605 -2.556 0.000
H6 -0.605 2.556 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33631.27772.52111.95863.2943
C21.33632.52111.27773.29431.9586
N31.27772.52113.76721.03284.4525
N42.52111.27773.76724.45251.0328
H51.95863.29431.03284.45255.2528
H63.29431.95864.45251.03285.2528

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 149.348 C1 N3 H5 115.518
C2 C1 N3 149.348 C2 N4 H6 115.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability