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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-244.640758
Energy at 298.15K 
HF Energy-244.640758
Nuclear repulsion energy164.679670
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 HF/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3458 3127 1.47 106.01 0.13 0.23
2 A' 3435 3107 1.24 38.15 0.74 0.85
3 A' 3416 3089 6.06 85.43 0.43 0.61
4 A' 1788 1617 19.45 1.91 0.75 0.86
5 A' 1627 1472 51.71 40.00 0.21 0.35
6 A' 1537 1390 18.31 2.58 0.75 0.86
7 A' 1380 1248 10.83 10.49 0.32 0.49
8 A' 1271 1149 24.93 3.99 0.24 0.39
9 A' 1219 1103 14.47 12.64 0.33 0.50
10 A' 1110 1003 2.54 1.62 0.17 0.29
11 A' 1048 948 65.40 4.34 0.19 0.32
12 A' 1013 916 7.05 4.43 0.75 0.86
13 A' 1000 904 0.35 1.80 0.53 0.70
14 A" 1038 939 3.49 2.52 0.75 0.86
15 A" 1022 925 0.33 0.64 0.75 0.86
16 A" 870 787 64.09 0.41 0.75 0.86
17 A" 704 637 3.32 0.24 0.75 0.86
18 A" 648 586 21.29 1.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13791.7 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 12473.2 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 HF/6-311G*
ABC
0.34002 0.32894 0.16720

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.116 0.369 0.000
C2 0.594 -0.961 0.000
C3 0.000 1.108 0.000
N4 -0.685 -0.964 0.000
O5 -1.068 0.336 0.000
H6 2.135 0.691 0.000
H7 1.122 -1.893 0.000
H8 -0.178 2.163 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42901.33912.24092.18451.06782.26192.2121
C21.42902.15291.27862.10812.25891.07113.2176
C31.33912.15292.18261.31772.17513.20411.0692
N42.24091.27862.18261.35553.26932.03163.1674
O52.18452.10811.31771.35553.22203.12482.0314
H61.06782.25892.17513.26933.22202.77512.7415
H72.26191.07113.20412.03163.12482.77514.2588
H82.21213.21761.06923.16742.03142.74154.2588

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.589 C1 C2 H7 129.005
C1 C3 O5 110.618 C1 C3 H8 133.115
C2 C1 C3 102.060 C2 C1 H6 128.994
C2 N4 O5 106.276 C3 C1 H6 128.945
C3 O5 N4 109.457 N4 C2 H7 119.406
O5 C3 H8 116.267
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.520      
2 C 0.046      
3 C 0.153      
4 N -0.146      
5 O -0.276      
6 H 0.234      
7 H 0.250      
8 H 0.260      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.838 1.555 0.000 3.236
CHELPG        
AIM        
ESP 2.777 1.543 0.000 3.177


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.918 -2.807 0.000
y -2.807 -24.631 0.000
z 0.000 0.000 -30.327
Traceless
 xyz
x -1.439 -2.807 0.000
y -2.807 4.992 0.000
z 0.000 0.000 -3.553
Polar
3z2-r2-7.105
x2-y2-4.287
xy-2.807
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.913 -0.350 0.000
y -0.350 6.185 0.000
z 0.000 0.000 2.864


<r2> (average value of r2) Å2
<r2> 75.185
(<r2>)1/2 8.671