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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD(T)/6-31+G**

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)/6-31+G**
 hartrees
Energy at 0K-261.392259
Energy at 298.15K 
HF Energy-260.548569
Nuclear repulsion energy161.959148
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)/6-31+G**
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 3334 3199        
2 A1 1472 1413        
3 A1 1343 1288        
4 A1 1073 1029        
5 A1 1005 965        
6 A1 877 842        
7 A2 826 793        
8 A2 614 589        
9 B1 837 804        
10 B1 613 588        
11 B2 3320 3186        
12 B2 1581 1517        
13 B2 1214 1165        
14 B2 954 915        
15 B2 860 826        

Unscaled Zero Point Vibrational Energy (zpe) 9961.7 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9559.2 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)/6-31+G**
ABC
0.34445 0.31787 0.16531

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.138
N2 0.000 1.146 0.355
N3 0.000 -1.146 0.355
C4 0.000 0.714 -0.888
C5 0.000 -0.714 -0.888
H6 0.000 1.406 -1.714
H7 0.000 -1.406 -1.714

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38841.38842.14842.14843.18053.1805
N21.38842.29281.31612.23762.08593.2863
N31.38842.29282.23761.31613.28632.0859
C42.14841.31612.23761.42821.07812.2758
C52.14842.23761.31611.42822.27581.0781
H63.18052.08593.28631.07812.27582.8126
H73.18053.28632.08592.27581.07812.8126

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.161 O1 N3 C5 105.161
N2 O1 N3 111.327 N2 C4 C5 109.176
N2 C4 H6 120.878 N3 C5 C4 109.176
N3 C5 H7 120.878 C4 C5 H7 129.946
C5 C4 H6 129.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability