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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-262.075185
Energy at 298.15K 
HF Energy-262.075185
Nuclear repulsion energy162.933926
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 TPSSh/6-31+G**
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 3172 0.39 111.26 0.11 0.19
2 A1 1460 1405 14.11 18.89 0.34 0.50
3 A1 1342 1291 2.58 22.81 0.04 0.08
4 A1 1069 1028 1.22 4.72 0.23 0.38
5 A1 1026 988 19.26 8.31 0.16 0.27
6 A1 893 860 22.40 6.12 0.12 0.21
7 A2 896 862 0.00 0.28 0.75 0.86
8 A2 646 622 0.00 0.18 0.75 0.86
9 B1 858 826 46.16 0.00 0.75 0.86
10 B1 641 617 1.09 0.43 0.75 0.86
11 B2 3281 3158 0.06 66.97 0.75 0.86
12 B2 1578 1518 0.00 0.08 0.75 0.86
13 B2 1202 1157 5.03 0.70 0.75 0.86
14 B2 957 921 17.34 3.77 0.75 0.86
15 B2 852 820 5.32 0.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9997.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 9622.7 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 TPSSh/6-31+G**
ABC
0.34841 0.32195 0.16733

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.129
N2 0.000 1.138 0.356
N3 0.000 -1.138 0.356
C4 0.000 0.711 -0.883
C5 0.000 -0.711 -0.883
H6 0.000 1.408 -1.709
H7 0.000 -1.408 -1.709

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37481.37482.13392.13393.16713.1671
N21.37482.27521.31142.22572.08273.2775
N31.37482.27522.22571.31143.27752.0827
C42.13391.31142.22571.42151.08002.2733
C52.13392.22571.31141.42152.27331.0800
H63.16712.08273.27751.08002.27332.8150
H73.16713.27752.08272.27331.08002.8150

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.167 O1 N3 C5 105.167
N2 O1 N3 111.674 N2 C4 C5 108.996
N2 C4 H6 120.823 N3 C5 C4 108.996
N3 C5 H7 120.823 C4 C5 H7 130.181
C5 C4 H6 130.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.195      
2 N -0.185      
3 N -0.185      
4 C -0.105      
5 C -0.105      
6 H 0.193      
7 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.495 3.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.528 0.000 0.000
y 0.000 6.609 0.000
z 0.000 0.000 6.440


<r2> (average value of r2) Å2
<r2> 72.876
(<r2>)1/2 8.537