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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-47.491446
Energy at 298.15K 
HF Energy-46.923355
Nuclear repulsion energy80.588946
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 MP2/CEP-121G
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 3254 3175 0.32 102.31 0.10 0.19
2 A1 1327 1295 38.32 10.50 0.75 0.86
3 A1 1126 1099 11.13 26.42 0.11 0.19
4 A1 1055 1030 0.06 6.85 0.29 0.44
5 A1 901 879 3.26 3.40 0.61 0.76
6 A1 785 766 15.14 9.19 0.15 0.26
7 A2 690 673 0.00 1.15 0.75 0.86
8 A2 572 559 0.00 0.02 0.75 0.86
9 B1 793 774 64.44 0.29 0.75 0.86
10 B1 577 563 1.11 0.04 0.75 0.86
11 B2 3235 3157 0.43 51.55 0.75 0.86
12 B2 1382 1349 6.67 1.32 0.75 0.86
13 B2 1131 1104 4.98 0.02 0.75 0.86
14 B2 940 917 6.50 5.10 0.75 0.86
15 B2 752 734 1.17 0.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9259.8 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 9037.5 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 MP2/CEP-121G
ABC
0.31704 0.29162 0.15190

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.198
N2 0.000 1.214 0.360
N3 0.000 -1.214 0.360
C4 0.000 0.722 -0.925
C5 0.000 -0.722 -0.925
H6 0.000 1.416 -1.759
H7 0.000 -1.416 -1.759

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.47511.47512.24212.24213.27863.2786
N21.47512.42771.37572.32312.12873.3771
N31.47512.42772.32311.37573.37712.1287
C42.24211.37572.32311.44351.08532.2945
C52.24212.32311.37571.44352.29451.0853
H63.27862.12873.37711.08532.29452.8313
H73.27863.37712.12872.29451.08532.8313

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 103.667 O1 N3 C5 103.667
N2 O1 N3 110.749 N2 C4 C5 110.958
N2 C4 H6 119.297 N3 C5 C4 110.958
N3 C5 H7 119.297 C4 C5 H7 129.745
C5 C4 H6 129.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability