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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-261.376204
Energy at 298.15K 
HF Energy-260.542093
Nuclear repulsion energy162.161968
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 3341 3169        
2 A1 1482 1406        
3 A1 1348 1279        
4 A1 1078 1023        
5 A1 1010 958        
6 A1 891 845        
7 A2 851 807        
8 A2 629 596        
9 B1 847 804        
10 B1 627 595        
11 B2 3326 3155        
12 B2 1591 1509        
13 B2 1220 1157        
14 B2 959 910        
15 B2 873 828        

Unscaled Zero Point Vibrational Energy (zpe) 10036.9 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 9520.0 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
0.34532 0.31868 0.16573

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 1.136
N2 0.000 1.145 0.355
N3 0.000 -1.145 0.355
C4 0.000 0.713 -0.887
C5 0.000 -0.713 -0.887
H6 0.000 1.404 -1.713
H7 0.000 -1.404 -1.713

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38601.38602.14512.14513.17693.1769
N21.38602.29011.31512.23512.08513.2831
N31.38602.29012.23511.31513.28312.0851
C42.14511.31512.23511.42631.07742.2729
C52.14512.23511.31511.42632.27291.0774
H63.17692.08513.28311.07742.27292.8082
H73.17693.28312.08512.27291.07742.8082

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.123 O1 N3 C5 105.123
N2 O1 N3 111.412 N2 C4 C5 109.171
N2 C4 H6 120.938 N3 C5 C4 109.171
N3 C5 H7 120.938 C4 C5 H7 129.890
C5 C4 H6 129.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability