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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-261.676662
Energy at 298.15K-261.672305
HF Energy-260.543672
Nuclear repulsion energy166.883369
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
4/u)
Dep P Dep U
1 A1 3468 3468 0.07 83.60 0.10 0.18
2 A1 1663 1663 6.19 26.55 0.21 0.34
3 A1 1483 1483 6.02 12.36 0.29 0.45
4 A1 1169 1169 46.36 6.59 0.39 0.56
5 A1 1118 1118 0.39 2.08 0.17 0.30
6 A1 1010 1010 38.43 4.24 0.13 0.23
7 A2 1025 1025 0.00 3.25 0.75 0.86
8 A2 717 717 0.00 0.07 0.75 0.86
9 B1 970 970 31.32 0.26 0.75 0.86
10 B1 703 703 0.98 1.19 0.75 0.86
11 B2 3454 3454 0.25 54.15 0.75 0.86
12 B2 1812 1812 0.06 0.99 0.75 0.86
13 B2 1336 1336 2.55 1.02 0.75 0.86
14 B2 1141 1141 0.73 0.51 0.75 0.86
15 B2 1058 1058 29.72 5.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11063.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11063.0 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
0.34569 0.32446 0.16737

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.096
N2 0.000 1.099 0.353
N3 0.000 -1.099 0.353
C4 0.000 0.715 -0.863
C5 0.000 -0.715 -0.863
H6 0.000 1.413 -1.676
H7 0.000 -1.413 -1.676

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32651.32652.08602.08603.11173.1117
N21.32652.19741.27522.18412.05323.2290
N31.32652.19742.18411.27523.22902.0532
C42.08601.27522.18411.43091.07122.2786
C52.08602.18411.27521.43092.27861.0712
H63.11172.05323.22901.07122.27862.8266
H73.11173.22902.05322.27861.07122.8266

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.589 O1 N3 C5 106.589
N2 O1 N3 111.843 N2 C4 C5 107.490
N2 C4 H6 121.861 N3 C5 C4 107.490
N3 C5 H7 121.861 C4 C5 H7 130.649
C5 C4 H6 130.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability