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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP4=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-261.771777
Energy at 298.15K 
HF Energy-260.629744
Nuclear repulsion energy163.046014
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/6-311+G(3df,2p)
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 3289 3289        
2 A1 1427 1427        
3 A1 1313 1313        
4 A1 1069 1069        
5 A1 1014 1014        
6 A1 884 884        
7 A2 898 898        
8 A2 647 647        
9 B1 851 851        
10 B1 650 650        
11 B2 3274 3274        
12 B2 1523 1523        
13 B2 1186 1186        
14 B2 950 950        
15 B2 860 860        

Unscaled Zero Point Vibrational Energy (zpe) 9917.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9917.5 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/6-311+G(3df,2p)
ABC
0.34762 0.32366 0.16760

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.129
N2 0.000 1.135 0.358
N3 0.000 -1.135 0.358
C4 0.000 0.707 -0.886
C5 0.000 -0.707 -0.886
H6 0.000 1.406 -1.705
H7 0.000 -1.406 -1.705

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37281.37282.13512.13513.16403.1640
N21.37282.27101.31502.22252.08063.2734
N31.37282.27102.22251.31503.27342.0806
C42.13511.31502.22251.41371.07742.2663
C52.13512.22251.31501.41372.26631.0774
H63.16402.08063.27341.07742.26632.8120
H73.16403.27342.08062.26631.07742.8120

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.172 O1 N3 C5 105.172
N2 O1 N3 111.609 N2 C4 C5 109.024
N2 C4 H6 120.516 N3 C5 C4 109.024
N3 C5 H7 120.516 C4 C5 H7 130.460
C5 C4 H6 130.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability