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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-261.613601
Energy at 298.15K 
HF Energy-260.635409
Nuclear repulsion energy163.361724
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/aug-cc-pVTZ
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 3319 3162 1.80 105.26 0.07 0.14
2 A1 1424 1357 26.54 6.30 0.73 0.84
3 A1 1281 1221 1.39 28.35 0.03 0.05
4 A1 1085 1034 0.37 6.56 0.23 0.37
5 A1 1038 989 17.46 10.52 0.09 0.17
6 A1 911 868 11.08 4.66 0.08 0.15
7 A2 890 848 0.00 0.06 0.75 0.86
8 A2 650 620 0.00 0.34 0.75 0.86
9 B1 854 814 41.47 0.03 0.75 0.86
10 B1 666 635 1.92 0.09 0.75 0.86
11 B2 3303 3147 1.60 50.53 0.75 0.86
12 B2 1491 1421 0.17 0.71 0.75 0.86
13 B2 1179 1124 5.27 0.01 0.75 0.86
14 B2 968 922 14.56 1.50 0.75 0.86
15 B2 933 889 1.05 0.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9996.2 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 9525.4 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 MP2/aug-cc-pVTZ
ABC
0.34693 0.32690 0.16831

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.124
N2 0.000 1.131 0.364
N3 0.000 -1.131 0.364
C4 0.000 0.700 -0.890
C5 0.000 -0.700 -0.890
H6 0.000 1.404 -1.703
H7 0.000 -1.404 -1.703

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36311.36312.13212.13213.15633.1563
N21.36312.26221.32522.21902.08433.2702
N31.36312.26222.21901.32523.27022.0843
C42.13211.32522.21901.40041.07522.2554
C52.13212.21901.32521.40042.25541.0752
H63.15632.08433.27021.07522.25542.8070
H73.15633.27022.08432.25541.07522.8070

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.945 O1 N3 C5 104.945
N2 O1 N3 112.162 N2 C4 C5 108.975
N2 C4 H6 120.173 N3 C5 C4 108.975
N3 C5 H7 120.173 C4 C5 H7 130.852
C5 C4 H6 130.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability