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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-261.418318
Energy at 298.15K 
HF Energy-260.599681
Nuclear repulsion energy163.693518
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/6-311G*
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 3296 3143 0.12      
2 A1 1499 1429 14.96      
3 A1 1368 1305 5.25      
4 A1 1069 1019 7.59      
5 A1 1052 1003 13.66      
6 A1 922 880 26.45      
7 A2 869 828 0.00      
8 A2 648 618 0.00      
9 B1 858 818 42.34      
10 B1 646 616 0.61      
11 B2 3282 3130 0.02      
12 B2 1621 1545 0.24      
13 B2 1218 1162 4.78      
14 B2 977 932 20.78      
15 B2 960 915 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10142.3 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 9670.7 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/6-311G*
ABC
0.35137 0.32483 0.16879

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.122
N2 0.000 1.127 0.357
N3 0.000 -1.127 0.357
C4 0.000 0.715 -0.880
C5 0.000 -0.715 -0.880
H6 0.000 1.417 -1.703
H7 0.000 -1.417 -1.703

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36221.36222.12632.12633.16033.1603
N21.36222.25381.30362.21902.07963.2732
N31.36222.25382.21901.30363.27322.0796
C42.12631.30362.21901.43071.08122.2858
C52.12632.21901.30361.43072.28581.0812
H63.16032.07963.27321.08122.28582.8347
H73.16033.27322.07962.28581.08122.8347

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.781 O1 N3 C5 105.781
N2 O1 N3 111.635 N2 C4 C5 108.402
N2 C4 H6 121.110 N3 C5 C4 108.402
N3 C5 H7 121.110 C4 C5 H7 130.488
C5 C4 H6 130.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability