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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-44.588704
Energy at 298.15K 
HF Energy-44.588704
Nuclear repulsion energy83.723788
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' 3290 3290 1.79 130.41 0.12 0.21
2 A' 3270 3270 1.81 52.14 0.73 0.85
3 A' 3251 3251 4.70 100.78 0.40 0.57
4 A' 1606 1606 13.16 1.70 0.14 0.25
5 A' 1467 1467 36.21 39.00 0.29 0.45
6 A' 1410 1410 6.25 2.49 0.18 0.31
7 A' 1253 1253 8.32 13.69 0.18 0.30
8 A' 1166 1166 23.50 2.25 0.47 0.64
9 A' 1128 1128 10.35 13.02 0.18 0.31
10 A' 1041 1041 4.04 3.13 0.58 0.73
11 A' 946 946 41.23 5.39 0.17 0.29
12 A' 923 923 4.43 5.36 0.66 0.80
13 A' 913 913 1.91 0.61 0.65 0.79
14 A" 916 916 7.22 1.77 0.75 0.86
15 A" 887 887 0.02 0.21 0.75 0.86
16 A" 792 792 74.09 0.42 0.75 0.86
17 A" 644 644 2.18 0.20 0.75 0.86
18 A" 603 603 14.23 1.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12751.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12751.6 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
0.32614 0.31871 0.16119

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 1.133 0.370 0.000
C2 0.616 -0.966 0.000
C3 0.000 1.129 0.000
N4 -0.697 -0.990 0.000
O5 -1.093 0.343 0.000
H6 2.163 0.698 0.000
H7 1.155 -1.906 0.000
H8 -0.186 2.195 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43251.36342.27982.22621.08092.27662.2514
C21.43252.18391.31352.15352.27161.08393.2614
C31.36342.18392.23091.34652.20523.24791.0822
N42.27981.31352.23091.39113.32062.06663.2261
O52.22622.15351.34651.39113.27533.18102.0624
H61.08092.27162.20523.32063.27532.79222.7850
H72.27661.08393.24792.06663.18102.79224.3152
H82.25143.26141.08223.22612.06242.78504.3152

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.175 C1 C2 H7 129.043
C1 C3 O5 110.473 C1 C3 H8 133.702
C2 C1 C3 102.699 C2 C1 H6 128.779
C2 N4 O5 105.511 C3 C1 H6 128.522
C3 O5 N4 109.142 N4 C2 H7 118.782
O5 C3 H8 115.825
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 -0.346      
3 C -0.191      
4 N 0.037      
5 O -0.136      
6 H 0.244      
7 H 0.216      
8 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.658 1.549 0.000 3.077
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.221 -2.705 0.000
y -2.705 -24.418 0.000
z 0.000 0.000 -30.015
Traceless
 xyz
x -1.004 -2.705 0.000
y -2.705 4.700 0.000
z 0.000 0.000 -3.696
Polar
3z2-r2-7.392
x2-y2-3.802
xy-2.705
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.495 -0.263 0.000
y -0.263 7.018 0.000
z 0.000 0.000 3.383


<r2> (average value of r2) Å2
<r2> 63.437
(<r2>)1/2 7.965