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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/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 MP2/cc-pVDZ
 hartrees
Energy at 0K-261.346015
Energy at 298.15K 
HF Energy-260.558733
Nuclear repulsion energy162.501966
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/cc-pVDZ
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 3335 3176 1.59 93.12 0.10 0.19
2 A1 1434 1366 27.09 7.61 0.75 0.85
3 A1 1294 1233 0.82 16.45 0.11 0.20
4 A1 1082 1030 0.83 8.14 0.45 0.62
5 A1 1045 995 14.06 6.70 0.22 0.36
6 A1 917 873 11.91 4.47 0.12 0.21
7 A2 881 840 0.00 0.63 0.75 0.86
8 A2 647 616 0.00 0.64 0.75 0.86
9 B1 846 806 37.73 0.82 0.75 0.86
10 B1 668 636 1.14 0.19 0.75 0.86
11 B2 3319 3161 0.91 51.78 0.75 0.86
12 B2 1501 1430 0.33 1.02 0.75 0.86
13 B2 1175 1119 6.05 0.01 0.75 0.86
14 B2 968 922 16.06 3.39 0.75 0.86
15 B2 938 894 1.32 1.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10024.3 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 9548.1 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/cc-pVDZ
ABC
0.34367 0.32304 0.16652

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.125
N2 0.000 1.136 0.369
N3 0.000 -1.136 0.369
C4 0.000 0.707 -0.895
C5 0.000 -0.707 -0.895
H6 0.000 1.419 -1.717
H7 0.000 -1.419 -1.717

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36461.36462.13982.13983.17703.1770
N21.36462.27201.33472.23432.10553.2988
N31.36462.27202.23431.33473.29882.1055
C42.13981.33472.23431.41321.08842.2795
C52.13982.23431.33471.41322.27951.0884
H63.17702.10553.29881.08842.27952.8384
H73.17703.29882.10552.27951.08842.8384

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.881 O1 N3 C5 104.881
N2 O1 N3 112.708 N2 C4 C5 108.765
N2 C4 H6 120.336 N3 C5 C4 108.765
N3 C5 H7 120.336 C4 C5 H7 130.899
C5 C4 H6 130.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability