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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-261.829973
Energy at 298.15K 
HF Energy-261.829973
Nuclear repulsion energy162.385449
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/6-311G*
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 3203 3170 0.01 98.58 0.12 0.21
2 A1 1413 1398 13.51 15.63 0.39 0.56
3 A1 1303 1290 3.31 15.58 0.11 0.19
4 A1 1038 1028 3.27 6.46 0.43 0.60
5 A1 1004 993 9.92 5.80 0.22 0.35
6 A1 870 861 21.88 7.64 0.14 0.24
7 A2 849 840 0.00 1.27 0.75 0.86
8 A2 638 632 0.00 0.17 0.75 0.86
9 B1 818 809 42.05 0.41 0.75 0.86
10 B1 639 632 0.76 0.40 0.75 0.86
11 B2 3189 3156 0.01 61.26 0.75 0.86
12 B2 1524 1508 0.02 0.00 0.75 0.86
13 B2 1154 1142 6.13 0.75 0.75 0.86
14 B2 941 932 18.25 4.92 0.75 0.86
15 B2 755 747 7.26 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9669.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 9568.6 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/6-311G*
ABC
0.34648 0.31960 0.16625

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.143 0.357
N3 0.000 -1.143 0.357
C4 0.000 0.711 -0.885
C5 0.000 -0.711 -0.885
H6 0.000 1.415 -1.715
H7 0.000 -1.415 -1.715

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38101.38102.13942.13943.17923.1792
N21.38102.28551.31512.23182.08953.2912
N31.38102.28552.23181.31513.29122.0895
C42.13941.31512.23181.42251.08752.2819
C52.13942.23181.31511.42252.28191.0875
H63.17922.08953.29121.08752.28192.8292
H73.17923.29122.08952.28191.08752.8292

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.006 O1 N3 C5 105.006
N2 O1 N3 111.683 N2 C4 C5 109.152
N2 C4 H6 120.550 N3 C5 C4 109.152
N3 C5 H7 120.550 C4 C5 H7 130.298
C5 C4 H6 130.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.097      
2 N -0.079      
3 N -0.079      
4 C -0.109      
5 C -0.109      
6 H 0.236      
7 H 0.236      


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 -3.267 3.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.494 0.000 0.000
y 0.000 -29.753 0.000
z 0.000 0.000 -25.426
Traceless
 xyz
x -0.905 0.000 0.000
y 0.000 -2.793 0.000
z 0.000 0.000 3.698
Polar
3z2-r27.397
x2-y21.259
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.689 0.000 0.000
y 0.000 6.049 0.000
z 0.000 0.000 5.961


<r2> (average value of r2) Å2
<r2> 73.105
(<r2>)1/2 8.550