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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP4/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-261.399455
Energy at 298.15K 
HF Energy-260.557334
Nuclear repulsion energy161.529960
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/cc-pVDZ
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 3296 3187        
2 A1 1432 1384        
3 A1 1309 1265        
4 A1 1057 1022        
5 A1 1004 970        
6 A1 872 843        
7 A2 864 835        
8 A2 635 614        
9 B1 836 809        
10 B1 642 620        
11 B2 3281 3172        
12 B2 1524 1474        
13 B2 1169 1130        
14 B2 946 915        
15 B2 831 803        

Unscaled Zero Point Vibrational Energy (zpe) 9847.2 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 9521.3 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/cc-pVDZ
ABC
0.34210 0.31682 0.16449

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.135
N2 0.000 1.147 0.363
N3 0.000 -1.147 0.363
C4 0.000 0.715 -0.893
C5 0.000 -0.715 -0.893
H6 0.000 1.421 -1.725
H7 0.000 -1.421 -1.725

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38301.38302.15072.15073.19443.1944
N21.38302.29451.32812.24632.10633.3103
N31.38302.29452.24631.32813.31032.1063
C42.15071.32812.24631.43051.09162.2929
C52.15072.24631.32811.43052.29291.0916
H63.19442.10633.31031.09162.29292.8423
H73.19443.31032.10632.29291.09162.8423

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.969 O1 N3 C5 104.969
N2 O1 N3 112.098 N2 C4 C5 108.982
N2 C4 H6 120.725 N3 C5 C4 108.982
N3 C5 H7 120.725 C4 C5 H7 130.293
C5 C4 H6 130.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability