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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-261.647581
Energy at 298.15K 
HF Energy-261.647581
Nuclear repulsion energy160.640684
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 3365 3217 5.48 90.60 0.09 0.17
2 A1 1455 1391 14.46 19.60 0.41 0.58
3 A1 1342 1283 6.89 14.83 0.19 0.31
4 A1 1086 1038 0.25 4.93 0.31 0.48
5 A1 990 946 3.01 3.87 0.56 0.72
6 A1 845 808 22.95 12.02 0.14 0.25
7 A2 952 910 0.00 2.43 0.75 0.86
8 A2 662 633 0.00 0.17 0.75 0.86
9 B1 892 853 55.05 0.56 0.75 0.86
10 B1 624 596 1.06 0.78 0.75 0.86
11 B2 3349 3202 0.73 53.84 0.75 0.86
12 B2 1584 1514 3.66 0.21 0.75 0.86
13 B2 1225 1171 11.01 0.85 0.75 0.86
14 B2 979 936 13.30 5.73 0.75 0.86
15 B2 710 679 0.76 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10030.3 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 9588.0 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
0.34009 0.31174 0.16265

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 1.156
N2 0.000 1.164 0.348
N3 0.000 -1.164 0.348
C4 0.000 0.714 -0.889
C5 0.000 -0.714 -0.889
H6 0.000 1.389 -1.726
H7 0.000 -1.389 -1.726

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.41771.41772.16612.16613.20003.2000
N21.41772.32861.31582.24832.08593.2896
N31.41772.32862.24831.31583.28962.0859
C42.16611.31582.24831.42711.07612.2635
C52.16612.24831.31581.42712.26351.0761
H63.20002.08593.28961.07612.26352.7785
H73.20003.28962.08592.26351.07612.7785

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.757 O1 N3 C5 104.757
N2 O1 N3 110.419 N2 C4 C5 110.033
N2 C4 H6 121.072 N3 C5 C4 110.033
N3 C5 H7 121.072 C4 C5 H7 128.895
C5 C4 H6 128.895
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 -0.267      
2 N -0.083      
3 N -0.083      
4 C -0.031      
5 C -0.031      
6 H 0.247      
7 H 0.247      


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 -4.122 4.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.576 0.000 0.000
y 0.000 -30.533 0.000
z 0.000 0.000 -26.040
Traceless
 xyz
x -0.289 0.000 0.000
y 0.000 -3.225 0.000
z 0.000 0.000 3.514
Polar
3z2-r27.029
x2-y21.957
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.039 0.000 0.000
y 0.000 5.638 0.000
z 0.000 0.000 5.700


<r2> (average value of r2) Å2
<r2> 74.504
(<r2>)1/2 8.632