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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: wB97X-D/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/CEP-121G
 hartrees
Energy at 0K-44.500057
Energy at 298.15K 
HF Energy-44.500057
Nuclear repulsion energy82.350795
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 wB97X-D/CEP-121G
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' 3307 3307 0.71 113.76 0.11 0.20
2 A' 3279 3279 0.34 39.35 0.71 0.83
3 A' 3264 3264 2.19 82.71 0.42 0.59
4 A' 1579 1579 9.05 2.90 0.12 0.21
5 A' 1447 1447 34.11 40.41 0.36 0.53
6 A' 1383 1383 3.16 6.92 0.10 0.17
7 A' 1241 1241 10.12 11.66 0.19 0.32
8 A' 1153 1153 26.04 7.90 0.40 0.57
9 A' 1096 1096 6.05 11.16 0.13 0.23
10 A' 1053 1053 11.21 3.16 0.72 0.84
11 A' 932 932 7.87 6.34 0.62 0.77
12 A' 904 904 0.19 1.75 0.51 0.68
13 A' 865 865 30.57 9.40 0.19 0.32
14 A" 928 928 2.91 2.15 0.75 0.86
15 A" 902 902 4.37 0.34 0.75 0.86
16 A" 808 808 94.47 0.32 0.75 0.86
17 A" 630 630 4.68 0.01 0.75 0.86
18 A" 590 590 10.18 1.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12679.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12679.7 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 wB97X-D/CEP-121G
ABC
0.31735 0.30609 0.15581

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.134 0.382 0.000
C2 0.639 -0.972 0.000
C3 0.000 1.156 0.000
N4 -0.696 -1.030 0.000
O5 -1.118 0.349 0.000
H6 2.162 0.707 0.000
H7 1.197 -1.898 0.000
H8 -0.184 2.218 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.44211.37312.31202.25291.07802.28092.2607
C21.44212.22201.33662.19872.26681.08043.2952
C31.37312.22202.29421.37902.20863.27971.0784
N42.31201.33662.29421.44233.34482.08203.2886
O52.25292.19871.37901.44233.30023.22592.0897
H61.07802.26682.20863.34483.30022.77772.7917
H72.28091.08043.27972.08203.22592.77774.3417
H82.26073.29521.07843.28862.08972.79174.3417

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.567 C1 C2 H7 128.868
C1 C3 O5 109.894 C1 C3 H8 134.140
C2 C1 C3 104.213 C2 C1 H6 127.592
C2 N4 O5 104.536 C3 C1 H6 128.195
C3 O5 N4 108.790 N4 C2 H7 118.565
O5 C3 H8 115.965
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.047      
2 C -0.338      
3 C -0.150      
4 N 0.080      
5 O -0.192      
6 H 0.219      
7 H 0.210      
8 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.305 1.634 0.000 3.687
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.610 -2.841 0.000
y -2.841 -24.793 0.000
z 0.000 0.000 -30.302
Traceless
 xyz
x -2.063 -2.841 0.000
y -2.841 5.163 0.000
z 0.000 0.000 -3.101
Polar
3z2-r2-6.202
x2-y2-4.817
xy-2.841
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.450 -0.287 0.000
y -0.287 7.038 0.000
z 0.000 0.000 3.161


<r2> (average value of r2) Å2
<r2> 65.253
(<r2>)1/2 8.078