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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCD/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-261.400444
Energy at 298.15K 
HF Energy-260.582710
Nuclear repulsion energy162.929080
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/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 ?a 916 916 22.68      
2 ?a 915 915 0.00      
3 A1 3309 3309 0.46      
4 A1 1488 1488 19.58      
5 A1 1358 1358 2.44      
6 A1 1065 1065 4.18      
7 A1 1044 1044 20.45      
8 A2 649 649 0.00      
9 B1 866 866 37.85      
10 B1 642 642 1.30      
11 B2 3295 3295 0.10      
12 B2 1606 1606 0.03      
13 B2 1211 1211 3.54      
14 B2 989 989 5.19      
15 B2 964 964 13.61      

Unscaled Zero Point Vibrational Energy (zpe) 10157.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10157.5 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/daug-cc-pVDZ
ABC
0.34751 0.32242 0.16725

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.127
N2 0.000 1.132 0.360
N3 0.000 -1.132 0.360
C4 0.000 0.717 -0.886
C5 0.000 -0.717 -0.886
H6 0.000 1.423 -1.712
H7 0.000 -1.423 -1.712

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36721.36722.13662.13663.17593.1759
N21.36722.26321.31262.22912.09253.2892
N31.36722.26322.22911.31263.28922.0925
C42.13661.31262.22911.43421.08702.2941
C52.13662.22911.31261.43422.29411.0870
H63.17592.09253.28921.08702.29412.8458
H73.17593.28922.09252.29411.08702.8458

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.727 O1 N3 C5 105.727
N2 O1 N3 111.727 N2 C4 C5 108.410
N2 C4 H6 121.100 N3 C5 C4 108.410
N3 C5 H7 121.100 C4 C5 H7 130.491
C5 C4 H6 130.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability