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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CBS-Q
 hartrees
Energy at 0K-186.517527
Energy at 298.15K-186.512114
HF Energy-185.673976
Nuclear repulsion energy90.550113
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 CBS-Q
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 3677 3677 0.00 634.76 0.32 0.48
2 Ag 2455 2455 0.00 77.21 0.35 0.51
3 Ag 1287 1287 0.00 15.43 0.74 0.85
4 Ag 1007 1007 0.00 48.47 0.30 0.46
5 Ag 299 299 0.00 5.70 0.62 0.77
6 Au 1059 1059 177.42 0.00 0.00 0.00
7 Au 277 277 1.33 0.00 0.00 0.00
8 Bg 693 693 0.00 14.51 0.75 0.86
9 Bu 3679 3679 14.42 0.00 0.00 0.00
10 Bu 1907 1907 329.15 0.00 0.00 0.00
11 Bu 1279 1279 385.44 0.00 0.00 0.00
12 Bu 316 316 12.68 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8967.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8967.9 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 CBS-Q
ABC
7.80874 0.14097 0.13847

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.138 -0.625 0.000
C2 -0.138 0.625 0.000
N3 0.138 -1.853 0.000
N4 -0.138 1.853 0.000
H5 1.068 -2.240 0.000
H6 -1.068 2.240 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.28091.22712.49331.86303.1085
C21.28092.49331.22713.10851.8630
N31.22712.49333.71541.00764.2661
N42.49331.22713.71544.26611.0076
H51.86303.10851.00764.26614.9625
H63.10851.86304.26611.00764.9625

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 167.569 C1 N3 H5 112.585
C2 C1 N3 167.569 C2 N4 H6 112.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability