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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-261.479067
Energy at 298.15K 
HF Energy-260.563953
Nuclear repulsion energy163.502880
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 MP2/6-31G(2df,p)
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 3345 3160 2.08 83.31 0.10 0.18
2 A1 1427 1348 25.24 6.61 0.75 0.86
3 A1 1294 1222 0.68 15.34 0.09 0.16
4 A1 1098 1037 0.25 7.93 0.34 0.51
5 A1 1060 1001 15.21 7.63 0.18 0.30
6 A1 930 878 9.10 4.00 0.11 0.19
7 A2 907 857 0.00 0.53 0.75 0.86
8 A2 657 620 0.00 0.64 0.75 0.86
9 B1 864 816 33.58 0.81 0.75 0.86
10 B1 675 637 1.91 0.25 0.75 0.86
11 B2 3330 3145 1.83 48.46 0.75 0.86
12 B2 1497 1414 0.67 0.62 0.75 0.86
13 B2 1192 1126 5.86 0.05 0.75 0.86
14 B2 982 927 8.31 0.29 0.75 0.86
15 B2 959 906 10.52 4.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10107.6 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 9546.6 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 MP2/6-31G(2df,p)
ABC
0.34699 0.32790 0.16859

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.121
N2 0.000 1.128 0.366
N3 0.000 -1.128 0.366
C4 0.000 0.700 -0.891
C5 0.000 -0.700 -0.891
H6 0.000 1.406 -1.704
H7 0.000 -1.406 -1.704

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35781.35782.13012.13013.15553.1555
N21.35782.25681.32762.21872.08833.2722
N31.35782.25682.21871.32763.27222.0883
C42.13011.32762.21871.40031.07682.2577
C52.13012.21871.32761.40032.25771.0768
H63.15552.08833.27221.07682.25772.8121
H73.15553.27222.08832.25771.07682.8121

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.973 O1 N3 C5 104.973
N2 O1 N3 112.417 N2 C4 C5 108.818
N2 C4 H6 120.222 N3 C5 C4 108.818
N3 C5 H7 120.222 C4 C5 H7 130.959
C5 C4 H6 130.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability