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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: QCISD(T)=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-261.759614
Energy at 298.15K 
HF Energy-260.632495
Nuclear repulsion energy163.598467
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 QCISD(T)=FULL/6-311+G(3df,2p)
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 3295 3295        
2 A1 1463 1463        
3 A1 1342 1342        
4 A1 1063 1063        
5 A1 1028 1028        
6 A1 896 896        
7 A2 904 904        
8 A2 649 649        
9 B1 860 860        
10 B1 644 644        
11 B2 3280 3280        
12 B2 1575 1575        
13 B2 1204 1204        
14 B2 958 958        
15 B2 889 889        

Unscaled Zero Point Vibrational Energy (zpe) 10024.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10024.9 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 QCISD(T)=FULL/6-311+G(3df,2p)
ABC
0.35044 0.32518 0.16867

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.126
N2 0.000 1.130 0.355
N3 0.000 -1.130 0.355
C4 0.000 0.710 -0.881
C5 0.000 -0.710 -0.881
H6 0.000 1.408 -1.701
H7 0.000 -1.408 -1.701

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36751.36752.12892.12893.15813.1581
N21.36752.25931.30532.21662.07483.2660
N31.36752.25932.21661.30533.26602.0748
C42.12891.30532.21661.42061.07662.2714
C52.12892.21661.30531.42062.27141.0766
H63.15812.07483.26601.07662.27142.8158
H73.15813.26602.07482.27141.07662.8158

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.568 O1 N3 C5 105.568
N2 O1 N3 111.387 N2 C4 C5 108.739
N2 C4 H6 120.869 N3 C5 C4 108.739
N3 C5 H7 120.869 C4 C5 H7 130.392
C5 C4 H6 130.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability