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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-261.760254
Energy at 298.15K 
HF Energy-261.760254
Nuclear repulsion energy164.403561
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/6-31G**
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 3328 3172 0.63 89.53 0.10 0.18
2 A1 1500 1430 10.76 17.77 0.36 0.53
3 A1 1377 1313 3.90 13.11 0.15 0.27
4 A1 1083 1032 8.26 5.11 0.71 0.83
5 A1 1079 1028 16.95 7.95 0.13 0.22
6 A1 944 899 19.40 4.75 0.12 0.22
7 A2 908 865 0.00 2.08 0.75 0.86
8 A2 667 636 0.00 0.29 0.75 0.86
9 B1 866 826 37.24 0.93 0.75 0.86
10 B1 669 637 0.85 0.67 0.75 0.86
11 B2 3314 3158 0.07 55.61 0.75 0.86
12 B2 1625 1548 0.12 0.11 0.75 0.86
13 B2 1217 1160 4.65 0.67 0.75 0.86
14 B2 982 936 11.48 5.05 0.75 0.86
15 B2 955 911 14.78 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10255.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 9774.5 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/6-31G**
ABC
0.35373 0.32853 0.17033

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.115
N2 0.000 1.122 0.358
N3 0.000 -1.122 0.358
C4 0.000 0.708 -0.878
C5 0.000 -0.708 -0.878
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
O11.35341.35342.11522.11523.14863.1486
N21.35342.24451.30392.20912.07933.2628
N31.35342.24452.20911.30393.26282.0793
C42.11521.30392.20911.41671.08052.2712
C52.11522.20911.30391.41672.27121.0805
H63.14862.07933.26281.08052.27122.8169
H73.14863.26282.07932.27121.08052.8169

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.478 O1 N3 C5 105.478
N2 O1 N3 112.031 N2 C4 C5 108.506
N2 C4 H6 121.106 N3 C5 C4 108.506
N3 C5 H7 121.106 C4 C5 H7 130.388
C5 C4 H6 130.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.197      
2 N -0.096      
3 N -0.096      
4 C -0.028      
5 C -0.028      
6 H 0.223      
7 H 0.223      


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 -3.315 3.315
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.110 0.000 0.000
y 0.000 -29.330 0.000
z 0.000 0.000 -24.954
Traceless
 xyz
x -0.968 0.000 0.000
y 0.000 -2.798 0.000
z 0.000 0.000 3.766
Polar
3z2-r27.532
x2-y21.220
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.312 0.000 0.000
y 0.000 5.530 0.000
z 0.000 0.000 5.609


<r2> (average value of r2) Å2
<r2> 71.557
(<r2>)1/2 8.459