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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-245.952725
Energy at 298.15K 
HF Energy-245.952725
Nuclear repulsion energy163.229276
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 M06-2X/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3332 3173 0.52 95.48 0.13 0.23
2 A' 3294 3137 0.12 58.36 0.49 0.66
3 A' 3282 3125 0.93 93.53 0.37 0.54
4 A' 1646 1568 9.46 0.93 0.19 0.33
5 A' 1502 1430 31.09 30.61 0.24 0.39
6 A' 1426 1358 11.58 1.61 0.55 0.71
7 A' 1273 1213 9.80 11.22 0.25 0.40
8 A' 1197 1140 12.90 3.01 0.49 0.66
9 A' 1148 1094 9.86 10.35 0.18 0.30
10 A' 1053 1003 1.96 4.58 0.56 0.72
11 A' 990 943 38.43 4.24 0.11 0.19
12 A' 939 894 4.95 1.39 0.74 0.85
13 A' 932 887 4.02 2.95 0.75 0.86
14 A" 938 894 4.32 1.69 0.75 0.86
15 A" 910 866 0.03 0.59 0.75 0.86
16 A" 806 768 47.32 1.07 0.75 0.86
17 A" 668 636 1.45 0.49 0.75 0.86
18 A" 622 592 13.88 0.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12978.6 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 12360.8 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 M06-2X/6-31G(2df,p)
ABC
0.33231 0.32535 0.16440

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.366 0.000
C2 0.609 -0.959 0.000
C3 0.000 1.117 0.000
N4 -0.695 -0.974 0.000
O5 -1.081 0.338 0.000
H6 2.149 0.694 0.000
H7 1.143 -1.898 0.000
H8 -0.187 2.179 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42221.35272.25932.20581.07522.26352.2380
C21.42222.16381.30332.12992.25941.07963.2376
C31.35272.16382.20301.33242.19033.22401.0782
N42.25931.30332.20301.36703.29632.05653.1931
O52.20582.12991.33241.36703.24923.15282.0466
H61.07522.25942.19033.29633.24922.77982.7682
H72.26351.07963.22402.05653.15282.77984.2879
H82.23803.23761.07823.19312.04662.76824.2879

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.910 C1 C2 H7 129.074
C1 C3 O5 110.464 C1 C3 H8 133.727
C2 C1 C3 102.453 C2 C1 H6 129.036
C2 N4 O5 105.780 C3 C1 H6 128.511
C3 O5 N4 109.393 N4 C2 H7 119.016
O5 C3 H8 115.809
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.291      
2 C 0.003      
3 C 0.099      
4 N -0.086      
5 O -0.217      
6 H 0.155      
7 H 0.160      
8 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.414 1.487 0.000 2.835
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.906 -2.471 0.000
y -2.471 -24.575 0.000
z 0.000 0.000 -29.517
Traceless
 xyz
x -0.860 -2.471 0.000
y -2.471 4.136 0.000
z 0.000 0.000 -3.276
Polar
3z2-r2-6.553
x2-y2-3.331
xy-2.471
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.089 -0.245 0.000
y -0.245 6.722 0.000
z 0.000 0.000 2.925


<r2> (average value of r2) Å2
<r2> 75.755
(<r2>)1/2 8.704