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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B2PLYP=FULLultrafine/3-21G

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/3-21G
 hartrees
Energy at 0K-260.265833
Energy at 298.15K 
HF Energy-260.067166
Nuclear repulsion energy157.674479
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/3-21G
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 3327 3327 4.15 86.77 0.10 0.19
2 A1 1352 1352 23.79 14.36 0.71 0.83
3 A1 1265 1265 0.11 14.62 0.13 0.23
4 A1 1057 1057 0.09 5.09 0.23 0.38
5 A1 937 937 1.59 4.54 0.54 0.70
6 A1 822 822 7.11 11.08 0.12 0.22
7 A2 928 928 0.00 2.39 0.75 0.86
8 A2 649 649 0.00 0.43 0.75 0.86
9 B1 874 874 51.34 1.27 0.75 0.86
10 B1 583 583 0.80 0.56 0.75 0.86
11 B2 3310 3310 0.06 54.61 0.75 0.86
12 B2 1475 1475 8.34 0.00 0.75 0.86
13 B2 1202 1202 8.95 0.67 0.75 0.86
14 B2 960 960 13.07 5.12 0.75 0.86
15 B2 725 725 0.38 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9731.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9731.4 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/3-21G
ABC
0.32902 0.29891 0.15662

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.193
N2 0.000 1.201 0.336
N3 0.000 -1.201 0.336
C4 0.000 0.714 -0.897
C5 0.000 -0.714 -0.897
H6 0.000 1.369 -1.749
H7 0.000 -1.369 -1.749

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.47511.47512.20862.20863.24533.2453
N21.47512.40131.32562.27762.09223.3096
N31.47512.40132.27761.32563.30962.0922
C42.20861.32562.27761.42851.07492.2511
C52.20862.27761.32561.42852.25111.0749
H63.24532.09223.30961.07492.25112.7386
H73.24533.30962.09222.25111.07492.7386

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 103.987 O1 N3 C5 103.987
N2 O1 N3 108.973 N2 C4 C5 111.527
N2 C4 H6 120.931 N3 C5 C4 111.527
N3 C5 H7 120.931 C4 C5 H7 127.542
C5 C4 H6 127.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability