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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-246.129695
Energy at 298.15K 
HF Energy-246.129695
Nuclear repulsion energy162.290789
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 B3LYP/aug-cc-pVTZ
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' 3279 3173 0.05 122.91 0.10 0.18
2 A' 3256 3150 0.14 56.98 0.63 0.77
3 A' 3234 3129 0.77 89.32 0.35 0.52
4 A' 1597 1545 11.12 3.52 0.02 0.03
5 A' 1460 1413 31.06 41.35 0.19 0.32
6 A' 1401 1356 6.64 3.64 0.07 0.13
7 A' 1250 1209 5.79 16.58 0.09 0.16
8 A' 1150 1112 22.27 4.89 0.26 0.41
9 A' 1119 1083 10.49 12.43 0.08 0.14
10 A' 1042 1008 6.58 2.22 0.54 0.70
11 A' 935 905 10.67 2.54 0.70 0.83
12 A' 919 889 1.47 0.63 0.58 0.73
13 A' 866 838 23.98 6.29 0.13 0.23
14 A" 924 894 5.17 0.31 0.75 0.86
15 A" 887 859 0.16 0.69 0.75 0.86
16 A" 786 761 62.53 0.14 0.75 0.86
17 A" 649 627 2.64 0.14 0.75 0.86
18 A" 609 589 12.47 0.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12681.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 12269.5 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 B3LYP/aug-cc-pVTZ
ABC
0.32934 0.32104 0.16257

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.367 0.000
C2 0.616 -0.960 0.000
C3 0.000 1.125 0.000
N4 -0.689 -0.993 0.000
O5 -1.091 0.346 0.000
H6 2.145 0.694 0.000
H7 1.161 -1.890 0.000
H8 -0.176 2.187 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42051.35372.26432.21341.07432.25802.2349
C21.42052.17391.30472.14932.25281.07833.2448
C31.35372.17392.22671.34102.18813.23091.0763
N42.26431.30472.22671.39773.29782.05583.2203
O52.21342.14931.34101.39773.25533.17372.0558
H61.07432.25282.18813.29783.25532.76552.7599
H72.25801.07833.23092.05583.17372.76554.2906
H82.23493.24481.07633.22032.05582.75994.2906

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.306 C1 C2 H7 128.760
C1 C3 O5 110.449 C1 C3 H8 133.453
C2 C1 C3 103.157 C2 C1 H6 128.579
C2 N4 O5 105.316 C3 C1 H6 128.263
C3 O5 N4 108.771 N4 C2 H7 118.934
O5 C3 H8 116.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155      
2 C -0.205      
3 C -0.443      
4 N -0.372      
5 O -0.294      
6 H 0.359      
7 H 0.542      
8 H 0.567      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.625 1.507 0.000 3.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.922 -2.700 0.000
y -2.700 -25.487 0.000
z 0.000 0.000 -30.299
Traceless
 xyz
x -1.029 -2.700 0.000
y -2.700 4.124 0.000
z 0.000 0.000 -3.095
Polar
3z2-r2-6.190
x2-y2-3.435
xy-2.700
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.148 -0.087 0.000
y -0.087 7.824 0.000
z 0.000 0.000 4.532


<r2> (average value of r2) Å2
<r2> 76.912
(<r2>)1/2 8.770