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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD=FULL/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 CCSD=FULL/TZVP
 hartrees
Energy at 0K-261.543701
Energy at 298.15K 
HF Energy-260.625183
Nuclear repulsion energy163.821296
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=FULL/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 3328 3153 0.55      
2 A1 1499 1420 15.82      
3 A1 1374 1302 4.54      
4 A1 1075 1018 1.15      
5 A1 1046 991 20.32      
6 A1 910 862 28.41      
7 A2 789 748 0.00      
8 A2 600 569 0.00      
9 B1 849 804 39.76      
10 B1 625 593 0.76      
11 B2 3314 3140 0.09      
12 B2 1625 1540 0.12      
13 B2 1239 1174 4.17      
14 B2 971 920 17.62      
15 B2 938 889 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10090.8 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 9561.0 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=FULL/TZVP
ABC
0.35235 0.32507 0.16908

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.125
N2 0.000 1.129 0.352
N3 0.000 -1.129 0.352
C4 0.000 0.712 -0.877
C5 0.000 -0.712 -0.877
H6 0.000 1.405 -1.700
H7 0.000 -1.405 -1.700

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36801.36802.12492.12493.15443.1544
N21.36802.25841.29852.21422.07063.2606
N31.36802.25842.21421.29853.26062.0706
C42.12491.29852.21421.42431.07512.2709
C52.12492.21421.29851.42432.27091.0751
H63.15442.07063.26061.07512.27092.8091
H73.15443.26062.07062.27091.07512.8091

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.635 O1 N3 C5 105.635
N2 O1 N3 111.263 N2 C4 C5 108.734
N2 C4 H6 121.172 N3 C5 C4 108.734
N3 C5 H7 121.172 C4 C5 H7 130.094
C5 C4 H6 130.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability