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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-261.859936
Energy at 298.15K 
HF Energy-261.579128
Nuclear repulsion energy162.605036
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 B2PLYP=FULLultrafine/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3305 3180 0.92 110.14 0.08 0.15
2 A1 1444 1390 20.30 15.80 0.35 0.51
3 A1 1330 1280 1.64 28.04 0.02 0.04
4 A1 1063 1023 1.25 4.94 0.24 0.39
5 A1 1021 982 14.06 8.48 0.11 0.20
6 A1 886 852 20.40 7.89 0.10 0.18
7 A2 884 851 0.00 0.03 0.75 0.86
8 A2 650 625 0.00 0.13 0.75 0.86
9 B1 850 818 41.87 0.05 0.75 0.86
10 B1 646 622 1.66 0.21 0.75 0.86
11 B2 3290 3166 0.48 57.89 0.75 0.86
12 B2 1552 1493 0.04 0.01 0.75 0.86
13 B2 1186 1142 4.89 0.51 0.75 0.86
14 B2 960 924 19.86 2.64 0.75 0.86
15 B2 838 806 2.47 0.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9952.4 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 9577.2 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
0.34637 0.32129 0.16668

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.139 0.358
N3 0.000 -1.139 0.358
C4 0.000 0.711 -0.886
C5 0.000 -0.711 -0.886
H6 0.000 1.412 -1.714
H7 0.000 -1.412 -1.714

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37661.37662.13952.13953.17623.1762
N21.37662.27731.31542.22932.08933.2857
N31.37662.27732.22931.31543.28572.0893
C42.13951.31542.22931.42251.08422.2787
C52.13952.22931.31541.42252.27871.0842
H63.17622.08933.28571.08422.27872.8239
H73.17623.28572.08932.27871.08422.8239

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.239 O1 N3 C5 105.239
N2 O1 N3 111.604 N2 C4 C5 108.959
N2 C4 H6 120.780 N3 C5 C4 108.959
N3 C5 H7 120.780 C4 C5 H7 130.261
C5 C4 H6 130.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability