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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-261.785377
Energy at 298.15K 
HF Energy-261.785377
Nuclear repulsion energy164.373948
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 HSEh1PBE/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 3318 3166 0.89 90.97 0.09 0.17
2 A1 1497 1428 10.69 17.88 0.36 0.53
3 A1 1374 1311 3.95 13.38 0.16 0.27
4 A1 1080 1031 10.38 5.36 0.74 0.85
5 A1 1075 1026 14.16 7.77 0.11 0.20
6 A1 942 899 19.99 4.89 0.12 0.21
7 A2 911 869 0.00 2.13 0.75 0.86
8 A2 667 636 0.00 0.31 0.75 0.86
9 B1 867 828 36.39 1.00 0.75 0.86
10 B1 668 638 0.95 0.66 0.75 0.86
11 B2 3304 3153 0.10 56.20 0.75 0.86
12 B2 1621 1547 0.10 0.09 0.75 0.86
13 B2 1212 1157 4.79 0.70 0.75 0.86
14 B2 980 935 14.03 5.15 0.75 0.86
15 B2 948 905 12.18 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10231.1 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 9763.5 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 HSEh1PBE/6-31G**
ABC
0.35355 0.32846 0.17027

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.116
N2 0.000 1.123 0.358
N3 0.000 -1.123 0.358
C4 0.000 0.708 -0.878
C5 0.000 -0.708 -0.878
H6 0.000 1.407 -1.702
H7 0.000 -1.407 -1.702

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35411.35412.11582.11583.14903.1490
N21.35412.24511.30392.20932.07943.2621
N31.35412.24512.20931.30393.26212.0794
C42.11581.30392.20931.41671.07992.2699
C52.11582.20931.30391.41672.26991.0799
H63.14902.07943.26211.07992.26992.8139
H73.14903.26212.07942.26991.07992.8139

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.485 O1 N3 C5 105.485
N2 O1 N3 111.990 N2 C4 C5 108.520
N2 C4 H6 121.170 N3 C5 C4 108.520
N3 C5 H7 121.170 C4 C5 H7 130.310
C5 C4 H6 130.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.196      
2 N -0.106      
3 N -0.106      
4 C 0.027      
5 C 0.027      
6 H 0.177      
7 H 0.177      


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 -3.314 3.314
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.070 0.000 0.000
y 0.000 -29.341 0.000
z 0.000 0.000 -24.965
Traceless
 xyz
x -0.917 0.000 0.000
y 0.000 -2.823 0.000
z 0.000 0.000 3.740
Polar
3z2-r27.481
x2-y21.271
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.332 0.000 0.000
y 0.000 5.557 0.000
z 0.000 0.000 5.642


<r2> (average value of r2) Å2
<r2> 71.570
(<r2>)1/2 8.460