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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-261.589642
Energy at 298.15K 
HF Energy-260.637869
Nuclear repulsion energy164.191717
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/cc-pVTZ
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 3315 3120 0.49      
2 A1 1504 1416 15.11      
3 A1 1372 1291 4.63      
4 A1 1071 1008 3.78      
5 A1 1052 991 18.77      
6 A1 922 868 22.88      
7 A2 930 875 0.00      
8 A2 662 624 0.00      
9 B1 885 833 37.66      
10 B1 653 614 1.46      
11 B2 3301 3107 0.09      
12 B2 1627 1531 0.16      
13 B2 1228 1156 3.53      
14 B2 975 918 22.01      
15 B2 958 902 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 10227.4 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 9626.0 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 CCSD/cc-pVTZ
ABC
0.35322 0.32713 0.16984

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.121
N2 0.000 1.124 0.354
N3 0.000 -1.124 0.354
C4 0.000 0.712 -0.877
C5 0.000 -0.712 -0.877
H6 0.000 1.406 -1.697
H7 0.000 -1.406 -1.697

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36101.36102.12142.12143.14953.1495
N21.36102.24831.29842.21042.07023.2572
N31.36102.24832.21041.29843.25722.0702
C42.12141.29842.21041.42331.07442.2711
C52.12142.21041.29841.42332.27111.0744
H63.14952.07023.25721.07442.27112.8126
H73.14953.25722.07022.27111.07442.8126

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.793 O1 N3 C5 105.793
N2 O1 N3 111.371 N2 C4 C5 108.522
N2 C4 H6 121.201 N3 C5 C4 108.522
N3 C5 H7 121.201 C4 C5 H7 130.278
C5 C4 H6 130.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability