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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-261.324382
Energy at 298.15K 
HF Energy-260.541389
Nuclear repulsion energy162.968310
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/6-31G*
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 3318 3133 0.41      
2 A1 1517 1433 13.71      
3 A1 1378 1301 5.18      
4 A1 1083 1023 0.66      
5 A1 1037 979 17.82      
6 A1 914 863 23.99      
7 A2 867 819 0.00      
8 A2 646 610 0.00      
9 B1 861 813 38.10      
10 B1 639 603 0.60      
11 B2 3305 3121 0.00      
12 B2 1637 1546 0.62      
13 B2 1235 1166 5.01      
14 B2 976 921 20.59      
15 B2 944 891 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 10177.5 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 9610.6 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/6-31G*
ABC
0.34861 0.32192 0.16737

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.131
N2 0.000 1.136 0.354
N3 0.000 -1.136 0.354
C4 0.000 0.714 -0.882
C5 0.000 -0.714 -0.882
H6 0.000 1.409 -1.710
H7 0.000 -1.409 -1.710

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37601.37602.13532.13533.17143.1714
N21.37602.27191.30622.22462.08253.2773
N31.37602.27192.22461.30623.27732.0825
C42.13531.30622.22461.42731.08192.2789
C52.13532.22461.30621.42732.27891.0819
H63.17142.08253.27731.08192.27892.8187
H73.17143.27732.08252.27891.08192.8187

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.492 O1 N3 C5 105.492
N2 O1 N3 111.288 N2 C4 C5 108.864
N2 C4 H6 121.115 N3 C5 C4 108.864
N3 C5 H7 121.115 C4 C5 H7 130.021
C5 C4 H6 130.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability