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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-186.535066
Energy at 298.15K 
HF Energy-185.742865
Nuclear repulsion energy89.460529
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/6-311+G(3df,2p)
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 3460 3262 0.00 539.32 0.30 0.46
2 Ag 2130 2008 0.00 4.22 0.73 0.85
3 Ag 1148 1082 0.00 39.97 0.51 0.68
4 Ag 922 869 0.00 36.22 0.13 0.24
5 Ag 303 286 0.00 3.24 0.34 0.51
6 Au 957 903 115.50 0.00 0.00 0.00
7 Au 249 235 0.00 0.00 0.00 0.00
8 Bg 677 638 0.00 1.34 0.75 0.86
9 Bu 3461 3263 36.66 0.00 0.30 0.46
10 Bu 1717 1618 114.46 0.00 0.00 0.00
11 Bu 1113 1050 382.03 0.00 0.00 0.00
12 Bu 282 266 6.50 0.00 0.35 0.52

Unscaled Zero Point Vibrational Energy (zpe) 8210.3 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 7739.8 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/6-311+G(3df,2p)
ABC
9.18652 0.14208 0.13992

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.243 -0.601 0.000
C2 -0.243 0.601 0.000
N3 0.243 -1.849 0.000
N4 -0.243 1.849 0.000
H5 1.188 -2.238 0.000
H6 -1.188 2.238 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.29691.24832.49831.89043.1798
C21.29692.49831.24833.17981.8904
N31.24832.49833.73071.02194.3311
N42.49831.24833.73074.33111.0219
H51.89043.17981.02194.33115.0683
H63.17981.89044.33111.02195.0683

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 157.955 C1 N3 H5 112.362
C2 C1 N3 157.955 C2 N4 H6 112.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability