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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBE1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-311G**
 hartrees
Energy at 0K-261.819912
Energy at 298.15K 
HF Energy-261.819912
Nuclear repulsion energy164.788029
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 PBE1PBE/6-311G**
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 3297 3163 0.81 90.53 0.11 0.20
2 A1 1486 1426 11.72 19.84 0.30 0.46
3 A1 1367 1312 4.55 14.12 0.13 0.22
4 A1 1081 1037 23.90 5.73 0.53 0.70
5 A1 1066 1023 1.56 6.64 0.14 0.24
6 A1 938 900 23.89 4.64 0.15 0.25
7 A2 913 876 0.00 1.08 0.75 0.86
8 A2 668 641 0.00 0.13 0.75 0.86
9 B1 868 833 41.31 0.16 0.75 0.86
10 B1 671 644 1.08 0.50 0.75 0.86
11 B2 3282 3149 0.40 53.73 0.75 0.86
12 B2 1613 1547 0.02 0.06 0.75 0.86
13 B2 1202 1154 5.52 0.65 0.75 0.86
14 B2 982 942 17.08 5.20 0.75 0.86
15 B2 938 900 8.57 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10186.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9772.9 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 PBE1PBE/6-311G**
ABC
0.35536 0.33002 0.17111

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.113
N2 0.000 1.119 0.357
N3 0.000 -1.119 0.357
C4 0.000 0.708 -0.876
C5 0.000 -0.708 -0.876
H6 0.000 1.409 -1.696
H7 0.000 -1.409 -1.696

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.34971.34972.11102.11103.14253.1425
N21.34972.23731.30012.20422.07423.2568
N31.34972.23732.20421.30013.25682.0742
C42.11101.30012.20421.41611.07892.2704
C52.11102.20421.30011.41612.27041.0789
H63.14252.07423.25681.07892.27042.8179
H73.14253.25682.07422.27041.07892.8179

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.612 O1 N3 C5 105.612
N2 O1 N3 111.959 N2 C4 C5 108.409
N2 C4 H6 121.078 N3 C5 C4 108.409
N3 C5 H7 121.078 C4 C5 H7 130.513
C5 C4 H6 130.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.108      
2 N -0.084      
3 N -0.084      
4 C -0.010      
5 C -0.010      
6 H 0.148      
7 H 0.148      


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 -3.373 3.373
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.309 0.000 0.000
y 0.000 -29.711 0.000
z 0.000 0.000 -25.312
Traceless
 xyz
x -0.797 0.000 0.000
y 0.000 -2.901 0.000
z 0.000 0.000 3.699
Polar
3z2-r27.397
x2-y21.403
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.694 0.000 0.000
y 0.000 5.703 0.000
z 0.000 0.000 5.771


<r2> (average value of r2) Å2
<r2> 71.513
(<r2>)1/2 8.457