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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/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/cc-pVTZ
 hartrees
Energy at 0K-261.593593
Energy at 298.15K 
HF Energy-260.632719
Nuclear repulsion energy163.515527
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-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 3325 3157 1.38 96.12 0.10 0.18
2 A1 1429 1356 26.28 6.48 0.75 0.86
3 A1 1288 1223 1.09 19.67 0.07 0.12
4 A1 1089 1034 0.28 6.95 0.31 0.48
5 A1 1046 993 17.05 7.47 0.19 0.32
6 A1 919 872 10.62 4.45 0.13 0.23
7 A2 907 861 0.00 0.09 0.75 0.86
8 A2 657 624 0.00 0.36 0.75 0.86
9 B1 859 815 40.93 0.09 0.75 0.86
10 B1 670 637 1.90 0.12 0.75 0.86
11 B2 3309 3142 1.11 49.95 0.75 0.86
12 B2 1499 1424 0.36 0.80 0.75 0.86
13 B2 1186 1126 5.66 0.01 0.75 0.86
14 B2 969 920 14.88 2.02 0.75 0.86
15 B2 944 896 2.39 2.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10047.4 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 9540.0 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-pVTZ
ABC
0.34761 0.32747 0.16862

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.122
N2 0.000 1.130 0.364
N3 0.000 -1.130 0.364
C4 0.000 0.700 -0.889
C5 0.000 -0.700 -0.889
H6 0.000 1.402 -1.702
H7 0.000 -1.402 -1.702

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36091.36092.12962.12963.15363.1536
N21.36092.25981.32442.21762.08413.2681
N31.36092.25982.21761.32443.26812.0841
C42.12961.32442.21761.40011.07462.2541
C52.12962.21761.32441.40012.25411.0746
H63.15362.08413.26811.07462.25412.8042
H73.15363.26812.08412.25411.07462.8042

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.934 O1 N3 C5 104.934
N2 O1 N3 112.252 N2 C4 C5 108.940
N2 C4 H6 120.268 N3 C5 C4 108.940
N3 C5 H7 120.268 C4 C5 H7 130.792
C5 C4 H6 130.792
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability