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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-261.774666
Energy at 298.15K 
HF Energy-261.774666
Nuclear repulsion energy162.065561
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 PBEPBE/6-31G**
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 3223 3178 0.52 98.47 0.10 0.18
2 A1 1422 1403 12.00 14.13 0.45 0.62
3 A1 1307 1289 2.72 14.59 0.13 0.23
4 A1 1045 1031 1.68 7.75 0.45 0.62
5 A1 1008 994 12.28 6.09 0.22 0.35
6 A1 880 868 17.87 7.11 0.12 0.22
7 A2 857 845 0.00 2.22 0.75 0.86
8 A2 637 628 0.00 0.37 0.75 0.86
9 B1 822 811 35.03 1.48 0.75 0.86
10 B1 638 629 0.86 0.54 0.75 0.86
11 B2 3208 3164 0.03 61.98 0.75 0.86
12 B2 1528 1507 0.10 0.02 0.75 0.86
13 B2 1157 1141 5.54 0.76 0.75 0.86
14 B2 936 923 17.42 4.99 0.75 0.86
15 B2 788 777 8.44 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9727.2 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9594.0 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 PBEPBE/6-31G**
ABC
0.34476 0.31868 0.16560

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.134
N2 0.000 1.145 0.359
N3 0.000 -1.145 0.359
C4 0.000 0.712 -0.888
C5 0.000 -0.712 -0.888
H6 0.000 1.412 -1.721
H7 0.000 -1.412 -1.721

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38261.38262.14322.14323.18493.1849
N21.38262.29041.32022.23662.09733.2962
N31.38262.29042.23661.32023.29622.0973
C42.14321.32022.23661.42321.08832.2809
C52.14322.23661.32021.42322.28091.0883
H63.18492.09733.29621.08832.28092.8232
H73.18493.29622.09732.28091.08832.8232

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.905 O1 N3 C5 104.905
N2 O1 N3 111.844 N2 C4 C5 109.172
N2 C4 H6 120.801 N3 C5 C4 109.172
N3 C5 H7 120.801 C4 C5 H7 130.026
C5 C4 H6 130.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.169      
2 N -0.114      
3 N -0.114      
4 C 0.046      
5 C 0.046      
6 H 0.152      
7 H 0.152      


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 -3.159 3.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.099 0.000 0.000
y 0.000 -29.318 0.000
z 0.000 0.000 -25.019
Traceless
 xyz
x -0.931 0.000 0.000
y 0.000 -2.759 0.000
z 0.000 0.000 3.689
Polar
3z2-r27.378
x2-y21.219
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.357 0.000 0.000
y 0.000 5.877 0.000
z 0.000 0.000 5.821


<r2> (average value of r2) Å2
<r2> 73.059
(<r2>)1/2 8.547