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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-261.598249
Energy at 298.15K 
HF Energy-260.641545
Nuclear repulsion energy164.494708
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/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3317 3174 0.77      
2 A1 1498 1434 17.80      
3 A1 1375 1316 3.14      
4 A1 1076 1029 9.68      
5 A1 1061 1016 17.77      
6 A1 933 893 22.31      
7 A2 918 879 0.00      
8 A2 661 633 0.00      
9 B1 885 847 37.17      
10 B1 658 629 1.57      
11 B2 3302 3160 0.27      
12 B2 1626 1556 0.05      
13 B2 1230 1177 3.38      
14 B2 1010 967 2.73      
15 B2 981 939 17.19      

Unscaled Zero Point Vibrational Energy (zpe) 10265.6 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9824.2 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/aug-cc-pVTZ
ABC
0.35386 0.32892 0.17047

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.118
N2 0.000 1.120 0.355
N3 0.000 -1.120 0.355
C4 0.000 0.710 -0.877
C5 0.000 -0.710 -0.877
H6 0.000 1.408 -1.695
H7 0.000 -1.408 -1.695

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35531.35532.11832.11833.14563.1456
N21.35532.24031.29912.20692.07003.2551
N31.35532.24032.20691.29913.25512.0700
C42.11831.29912.20691.42081.07462.2709
C52.11832.20691.29911.42082.27091.0746
H63.14562.07003.25511.07462.27092.8169
H73.14563.25512.07002.27091.07462.8169

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.872 O1 N3 C5 105.872
N2 O1 N3 111.484 N2 C4 C5 108.385
N2 C4 H6 121.105 N3 C5 C4 108.385
N3 C5 H7 121.105 C4 C5 H7 130.510
C5 C4 H6 130.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability