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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-261.360049
Energy at 298.15K 
HF Energy-260.538019
Nuclear repulsion energy162.069183
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 CCSD(T)/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 3280 3156        
2 A1 1467 1411        
3 A1 1345 1294        
4 A1 1055 1015        
5 A1 1006 968        
6 A1 878 845        
7 A2 832 801        
8 A2 629 605        
9 B1 836 804        
10 B1 627 603        
11 B2 3261 3138        
12 B2 1584 1524        
13 B2 1221 1175        
14 B2 953 917        
15 B2 871 838        

Unscaled Zero Point Vibrational Energy (zpe) 9922.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 9546.2 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 CCSD(T)/6-31G*
ABC
0.34495 0.31840 0.16557

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.137
N2 0.000 1.145 0.356
N3 0.000 -1.145 0.356
C4 0.000 0.713 -0.887
C5 0.000 -0.713 -0.887
H6 0.000 1.409 -1.718
H7 0.000 -1.409 -1.718

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38621.38622.14562.14563.18343.1834
N21.38622.29051.31552.23562.09033.2900
N31.38622.29052.23561.31553.29002.0903
C42.14561.31552.23561.42661.08382.2793
C52.14562.23561.31551.42662.27931.0838
H63.18342.09033.29001.08382.27932.8182
H73.18343.29002.09032.27931.08382.8182

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.124 O1 N3 C5 105.124
N2 O1 N3 111.415 N2 C4 C5 109.169
N2 C4 H6 120.889 N3 C5 C4 109.169
N3 C5 H7 120.889 C4 C5 H7 129.943
C5 C4 H6 129.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability