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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-261.445172
Energy at 298.15K 
HF Energy-260.625756
Nuclear repulsion energy164.149095
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 CCD/TZVP
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 3336 3162 0.53      
2 A1 1497 1420 17.40      
3 A1 1380 1309 3.04      
4 A1 1081 1025 2.60      
5 A1 1061 1006 23.74      
6 A1 926 878 27.39      
7 A2 790 749 0.00      
8 A2 602 571 0.00      
9 B1 851 806 39.61      
10 B1 632 599 0.71      
11 B2 3322 3149 0.09      
12 B2 1628 1543 0.10      
13 B2 1245 1180 4.57      
14 B2 1005 952 3.40      
15 B2 973 923 12.84      

Unscaled Zero Point Vibrational Energy (zpe) 10164.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9635.4 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 CCD/TZVP
ABC
0.35307 0.32698 0.16976

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.121
N2 0.000 1.125 0.354
N3 0.000 -1.125 0.354
C4 0.000 0.711 -0.878
C5 0.000 -0.711 -0.878
H6 0.000 1.406 -1.698
H7 0.000 -1.406 -1.698

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36111.36112.12112.12113.15003.1500
N21.36112.24981.29982.21102.07163.2587
N31.36112.24982.21101.29983.25872.0716
C42.12111.29982.21101.42191.07532.2705
C52.12112.21101.29981.42192.27051.0753
H63.15002.07163.25871.07532.27052.8124
H73.15003.25872.07162.27051.07532.8124

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.691 O1 N3 C5 105.691
N2 O1 N3 111.474 N2 C4 C5 108.572
N2 C4 H6 121.146 N3 C5 C4 108.572
N3 C5 H7 121.146 C4 C5 H7 130.282
C5 C4 H6 130.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability