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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-261.816187
Energy at 298.15K 
HF Energy-261.816187
Nuclear repulsion energy164.777856
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 3303 3166 0.03 88.46 0.12 0.21
2 A1 1491 1429 11.83 19.73 0.31 0.47
3 A1 1371 1314 4.40 14.00 0.12 0.21
4 A1 1081 1036 21.97 5.27 0.61 0.76
5 A1 1069 1025 3.09 6.72 0.13 0.22
6 A1 938 899 23.98 4.81 0.14 0.25
7 A2 904 866 0.00 1.22 0.75 0.86
8 A2 668 640 0.00 0.12 0.75 0.86
9 B1 863 827 41.95 0.18 0.75 0.86
10 B1 671 643 0.87 0.51 0.75 0.86
11 B2 3289 3152 0.02 53.81 0.75 0.86
12 B2 1617 1550 0.02 0.07 0.75 0.86
13 B2 1209 1158 5.13 0.65 0.75 0.86
14 B2 983 943 17.67 5.16 0.75 0.86
15 B2 938 899 8.24 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10196.8 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 9773.6 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 PBE1PBE/6-311G*
ABC
0.35552 0.32981 0.17109

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 1.411 -1.695
H7 0.000 -1.411 -1.695

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35011.35012.11082.11083.14233.1423
N21.35012.23801.29982.20432.07303.2576
N31.35012.23802.20431.29983.25762.0730
C42.11081.29982.20431.41611.07932.2716
C52.11082.20431.29981.41612.27161.0793
H63.14232.07303.25761.07932.27162.8213
H73.14233.25762.07302.27161.07932.8213

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.591 O1 N3 C5 105.591
N2 O1 N3 111.956 N2 C4 C5 108.431
N2 C4 H6 120.954 N3 C5 C4 108.431
N3 C5 H7 120.954 C4 C5 H7 130.615
C5 C4 H6 130.615
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 -0.109      
2 N -0.083      
3 N -0.083      
4 C -0.116      
5 C -0.116      
6 H 0.253      
7 H 0.253      


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 -3.385 3.385
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.379 0.000 0.000
y 0.000 -29.670 0.000
z 0.000 0.000 -25.292
Traceless
 xyz
x -0.898 0.000 0.000
y 0.000 -2.834 0.000
z 0.000 0.000 3.733
Polar
3z2-r27.465
x2-y21.291
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.655 0.000 0.000
y 0.000 5.679 0.000
z 0.000 0.000 5.743


<r2> (average value of r2) Å2
<r2> 71.521
(<r2>)1/2 8.457