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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: QCISD(T)/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)/Def2TZVPP
 hartrees
Energy at 0K-261.650680
Energy at 298.15K 
HF Energy-260.644174
Nuclear repulsion energy163.052197
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 QCISD(T)/Def2TZVPP
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 3292 3292        
2 A1 1454 1454        
3 A1 1335 1335        
4 A1 1061 1061        
5 A1 1018 1018        
6 A1 884 884        
7 A2 885 885        
8 A2 642 642        
9 B1 857 857        
10 B1 636 636        
11 B2 3278 3278        
12 B2 1564 1564        
13 B2 1199 1199        
14 B2 952 952        
15 B2 868 868        

Unscaled Zero Point Vibrational Energy (zpe) 9961.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9961.7 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 QCISD(T)/Def2TZVPP
ABC
0.34869 0.32248 0.16754

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.130
N2 0.000 1.136 0.355
N3 0.000 -1.136 0.355
C4 0.000 0.712 -0.883
C5 0.000 -0.712 -0.883
H6 0.000 1.407 -1.705
H7 0.000 -1.407 -1.705

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37481.37482.13482.13483.16493.1649
N21.37482.27131.30822.22392.07803.2723
N31.37482.27132.22391.30823.27232.0780
C42.13481.30822.22391.42401.07662.2727
C52.13482.22391.30821.42402.27271.0766
H63.16492.07803.27231.07662.27272.8133
H73.16493.27232.07802.27271.07662.8133

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.409 O1 N3 C5 105.409
N2 O1 N3 111.391 N2 C4 C5 108.895
N2 C4 H6 120.923 N3 C5 C4 108.895
N3 C5 H7 120.923 C4 C5 H7 130.181
C5 C4 H6 130.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability