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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.118524
HF Energy0.118524
Nuclear repulsion energy102.587311
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 PM3
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 3112 3031 82.95 57.20 0.13 0.23
2 A1 1611 1570 0.09 83.04 0.13 0.24
3 A1 1369 1333 12.47 26.25 0.74 0.85
4 A1 1034 1007 0.67 4.53 0.62 0.77
5 A1 948 924 18.90 10.42 0.60 0.75
6 A1 758 738 41.25 2.40 0.09 0.17
7 A2 929 905 0.00 5.60 0.75 0.86
8 A2 562 547 0.00 0.09 0.75 0.86
9 B1 832 811 40.10 1.04 0.75 0.86
10 B1 521 507 4.13 3.58 0.75 0.86
11 B2 3104 3023 50.59 52.49 0.75 0.86
12 B2 1735 1690 2.42 2.33 0.75 0.86
13 B2 1081 1053 0.41 0.81 0.75 0.86
14 B2 898 875 27.81 10.27 0.75 0.86
15 B2 608 592 12.75 4.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9550.5 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 9302.2 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 PM3
ABC
0.33168 0.32366 0.16381

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.187
N2 0.000 1.104 0.354
N3 0.000 -1.104 0.354
C4 0.000 0.727 -0.912
C5 0.000 -0.727 -0.912
H6 0.000 1.412 -1.759
H7 0.000 -1.412 -1.759

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38301.38302.22142.22143.26753.2675
N21.38302.20791.32112.22592.13603.2858
N31.38302.20792.22591.32113.28582.1360
C42.22141.32112.22591.45351.08982.3003
C52.22142.22591.32111.45352.30031.0898
H63.26752.13603.28581.08982.30032.8233
H73.26753.28582.13602.30031.08982.8233

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 110.449 O1 N3 C5 110.449
N2 O1 N3 105.922 N2 C4 C5 106.590
N2 C4 H6 124.473 N3 C5 C4 106.590
N3 C5 H7 124.473 C4 C5 H7 128.937
C5 C4 H6 128.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability