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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-259.654794
Energy at 298.15K 
HF Energy-259.050174
Nuclear repulsion energy155.556031
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 MP4/3-21G
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 3261 3163        
2 A1 1315 1275        
3 A1 1178 1143        
4 A1 1032 1001        
5 A1 899 871        
6 A1 793 769        
7 A2 854 828        
8 A2 624 605        
9 B1 832 807        
10 B1 570 553        
11 B2 3243 3145        
12 B2 1410 1368        
13 B2 1160 1125        
14 B2 934 906        
15 B2 700 679        

Unscaled Zero Point Vibrational Energy (zpe) 9402.0 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 9118.0 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 MP4/3-21G
ABC
0.32015 0.29097 0.15243

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.213
N2 0.000 1.220 0.338
N3 0.000 -1.220 0.338
C4 0.000 0.719 -0.909
C5 0.000 -0.719 -0.909
H6 0.000 1.379 -1.766
H7 0.000 -1.379 -1.766

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.50111.50112.23972.23973.28253.2825
N21.50112.44061.34432.30552.11053.3447
N31.50112.44062.30551.34433.34472.1105
C42.23971.34432.30551.43741.08232.2664
C52.23972.30551.34431.43742.26641.0823
H63.28252.11053.34471.08232.26642.7585
H73.28253.34472.11052.26641.08232.7585

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 103.704 O1 N3 C5 103.704
N2 O1 N3 108.773 N2 C4 C5 111.910
N2 C4 H6 120.477 N3 C5 C4 111.910
N3 C5 H7 120.477 C4 C5 H7 127.613
C5 C4 H6 127.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability