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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP4=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-261.387019
Energy at 298.15K 
HF Energy-260.535868
Nuclear repulsion energy161.722879
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 MP4=FULL/6-31G*
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 3293 3167        
2 A1 1447 1391        
3 A1 1326 1275        
4 A1 1083 1042        
5 A1 1000 962        
6 A1 878 845        
7 A2 832 800        
8 A2 631 607        
9 B1 833 801        
10 B1 637 613        
11 B2 3280 3154        
12 B2 1544 1485        
13 B2 1199 1153        
14 B2 955 918        
15 B2 844 812        

Unscaled Zero Point Vibrational Energy (zpe) 9892.2 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9512.3 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 MP4=FULL/6-31G*
ABC
0.34312 0.31757 0.16493

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.140
N2 0.000 1.149 0.357
N3 0.000 -1.149 0.357
C4 0.000 0.710 -0.890
C5 0.000 -0.710 -0.890
H6 0.000 1.407 -1.720
H7 0.000 -1.407 -1.720

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.39041.39042.14972.14973.18683.1868
N21.39042.29881.32192.23862.09293.2936
N31.39042.29882.23861.32193.29362.0929
C42.14971.32192.23861.41981.08402.2737
C52.14972.23861.32191.41982.27371.0840
H63.18682.09293.29361.08402.27372.8136
H73.18683.29362.09292.27371.08402.8136

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.826 O1 N3 C5 104.826
N2 O1 N3 111.509 N2 C4 C5 109.420
N2 C4 H6 120.574 N3 C5 C4 109.420
N3 C5 H7 120.574 C4 C5 H7 130.007
C5 C4 H6 130.007
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability