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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-261.771670
Energy at 298.15K 
HF Energy-261.771670
Nuclear repulsion energy162.052916
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3227 3174 0.21 97.58 0.10 0.18
2 A1 1424 1400 12.06 14.06 0.45 0.62
3 A1 1309 1288 2.74 14.39 0.13 0.23
4 A1 1048 1030 1.54 7.51 0.43 0.60
5 A1 1008 991 12.28 6.06 0.22 0.37
6 A1 880 865 17.92 7.17 0.12 0.22
7 A2 852 838 0.00 2.19 0.75 0.86
8 A2 637 626 0.00 0.35 0.75 0.86
9 B1 821 807 35.41 1.41 0.75 0.86
10 B1 638 627 0.78 0.54 0.75 0.86
11 B2 3213 3160 0.00 61.98 0.75 0.86
12 B2 1530 1505 0.12 0.03 0.75 0.86
13 B2 1161 1142 5.41 0.74 0.75 0.86
14 B2 937 921 17.46 4.96 0.75 0.86
15 B2 788 775 8.51 0.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9735.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 9574.7 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 PBEPBEultrafine/6-31G*
ABC
0.34480 0.31856 0.16558

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/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 1.413 -1.721
H7 0.000 -1.413 -1.721

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38281.38282.14322.14323.18533.1853
N21.38282.29071.32002.23672.09713.2971
N31.38282.29072.23671.32003.29712.0971
C42.14321.32002.23671.42331.08902.2821
C52.14322.23671.32001.42332.28211.0890
H63.18532.09713.29711.08902.28212.8257
H73.18533.29712.09712.28211.08902.8257

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.898 O1 N3 C5 104.898
N2 O1 N3 111.842 N2 C4 C5 109.181
N2 C4 H6 120.735 N3 C5 C4 109.181
N3 C5 H7 120.735 C4 C5 H7 130.084
C5 C4 H6 130.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.169      
2 N -0.105      
3 N -0.105      
4 C -0.003      
5 C -0.003      
6 H 0.193      
7 H 0.193      


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 -3.165 3.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.122 0.000 0.000
y 0.000 -29.307 0.000
z 0.000 0.000 -25.010
Traceless
 xyz
x -0.963 0.000 0.000
y 0.000 -2.741 0.000
z 0.000 0.000 3.705
Polar
3z2-r27.409
x2-y21.185
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.336 0.000 0.000
y 0.000 5.855 0.000
z 0.000 0.000 5.793


<r2> (average value of r2) Å2
<r2> 73.069
(<r2>)1/2 8.548