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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-261.396391
Energy at 298.15K 
HF Energy-260.581408
Nuclear repulsion energy162.917422
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 CCD/aug-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 3312 3194 0.45      
2 A1 1491 1438 19.72      
3 A1 1359 1311 2.44      
4 A1 1065 1027 4.57      
5 A1 1044 1007 19.90      
6 A1 915 883 22.94      
7 A2 875 844 0.00      
8 A2 645 622 0.00      
9 B1 861 831 38.30      
10 B1 643 620 1.25      
11 B2 3296 3179 0.10      
12 B2 1607 1550 0.04      
13 B2 1210 1167 3.59      
14 B2 988 953 6.09      
15 B2 963 929 12.67      

Unscaled Zero Point Vibrational Energy (zpe) 10136.9 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 9777.1 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 CCD/aug-cc-pVDZ
ABC
0.34747 0.32237 0.16723

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.127
N2 0.000 1.132 0.360
N3 0.000 -1.132 0.360
C4 0.000 0.717 -0.886
C5 0.000 -0.717 -0.886
H6 0.000 1.424 -1.712
H7 0.000 -1.424 -1.712

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36741.36742.13672.13673.17653.1765
N21.36742.26341.31252.22902.09263.2898
N31.36742.26342.22901.31253.28982.0926
C42.13671.31252.22901.43411.08762.2948
C52.13672.22901.31251.43412.29481.0876
H63.17652.09263.28981.08762.29482.8471
H73.17653.28982.09262.29481.08762.8471

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.729 O1 N3 C5 105.729
N2 O1 N3 111.708 N2 C4 C5 108.417
N2 C4 H6 121.071 N3 C5 C4 108.417
N3 C5 H7 121.071 C4 C5 H7 130.512
C5 C4 H6 130.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability