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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-259.531920
Energy at 298.15K 
HF Energy-259.064657
Nuclear repulsion energy159.376223
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 CID/3-21G*
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 3384 3148 4.40      
2 A1 1456 1354 9.77      
3 A1 1360 1265 7.60      
4 A1 1055 981 0.33      
5 A1 987 919 3.22      
6 A1 863 803 17.24      
7 A2 964 897 0.00      
8 A2 671 624 0.00      
9 B1 919 855 46.95      
10 B1 593 552 0.58      
11 B2 3367 3133 0.01      
12 B2 1606 1495 6.22      
13 B2 1271 1183 10.20      
14 B2 1008 938 13.57      
15 B2 891 830 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 10197.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 9488.7 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 CID/3-21G*
ABC
0.33641 0.30474 0.15989

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.179
N2 0.000 1.180 0.334
N3 0.000 -1.180 0.334
C4 0.000 0.722 -0.886
C5 0.000 -0.722 -0.886
H6 0.000 1.378 -1.734
H7 0.000 -1.378 -1.734

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.45141.45142.18792.18793.22293.2229
N21.45142.35991.30352.25952.07783.2896
N31.45142.35992.25951.30353.28962.0778
C42.18791.30352.25951.44331.07242.2645
C52.18792.25951.30351.44332.26451.0724
H63.22292.07783.28961.07242.26452.7562
H73.22293.28962.07782.26451.07242.7562

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.030 O1 N3 C5 105.030
N2 O1 N3 108.774 N2 C4 C5 110.583
N2 C4 H6 121.671 N3 C5 C4 110.583
N3 C5 H7 121.671 C4 C5 H7 127.746
C5 C4 H6 127.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability