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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-242.522984
Energy at 298.15K 
HF Energy-242.411790
Nuclear repulsion energy157.316638
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 B2PLYP/STO-3G
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' 3572 3572 20.14 57.15 0.13 0.23
2 A' 3532 3532 23.57 16.98 0.46 0.63
3 A' 3525 3525 10.92 70.26 0.53 0.69
4 A' 1661 1661 5.89 2.79 0.20 0.33
5 A' 1487 1487 30.31 10.00 0.61 0.76
6 A' 1446 1446 3.69 12.83 0.42 0.60
7 A' 1279 1279 2.51 5.39 0.21 0.35
8 A' 1198 1198 5.61 12.14 0.40 0.57
9 A' 1158 1158 1.56 3.11 0.20 0.34
10 A' 1107 1107 0.36 6.34 0.60 0.75
11 A' 1023 1023 7.63 6.39 0.13 0.23
12 A' 940 940 1.22 4.86 0.74 0.85
13 A' 918 918 2.05 0.12 0.68 0.81
14 A" 927 927 0.08 0.90 0.75 0.86
15 A" 889 889 1.53 2.01 0.75 0.86
16 A" 800 800 27.30 1.09 0.75 0.86
17 A" 636 636 4.22 0.06 0.75 0.86
18 A" 588 588 0.28 0.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13342.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13342.3 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 B2PLYP/STO-3G
ABC
0.30829 0.30317 0.15285

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.142 0.389 0.000
C2 0.664 -0.967 0.000
C3 0.000 1.156 0.000
N4 -0.708 -1.039 0.000
O5 -1.142 0.342 0.000
H6 2.179 0.730 0.000
H7 1.249 -1.894 0.000
H8 -0.176 2.238 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43761.37602.33732.28441.09122.28512.2718
C21.43762.22411.37452.23012.27491.09603.3138
C31.37602.22412.30581.40192.22003.29551.0971
N42.33731.37452.30581.44693.38612.13623.3200
O52.28442.23011.40191.44693.34303.27312.1280
H61.09122.27492.22003.38613.34302.78412.7968
H72.28511.09603.29552.13623.27312.78414.3713
H82.27183.31381.09713.32002.12802.79684.3713

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.422 C1 C2 H7 128.316
C1 C3 O5 110.640 C1 C3 H8 133.126
C2 C1 C3 104.441 C2 C1 H6 127.674
C2 N4 O5 104.428 C3 C1 H6 127.885
C3 O5 N4 108.069 N4 C2 H7 119.262
O5 C3 H8 116.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.113      
2 C -0.024      
3 C 0.016      
4 N -0.109      
5 O -0.062      
6 H 0.093      
7 H 0.097      
8 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.858 1.383 0.000 2.316
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.773 -2.121 -0.000
y -2.121 -24.452 0.001
z -0.000 0.001 -26.867
Traceless
 xyz
x -1.114 -2.121 -0.000
y -2.121 2.368 0.001
z -0.000 0.001 -1.254
Polar
3z2-r2-2.508
x2-y2-2.321
xy-2.121
xz-0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.798 -0.284 0.000
y -0.284 4.420 0.000
z 0.000 0.000 0.806


<r2> (average value of r2) Å2
<r2> 79.160
(<r2>)1/2 8.897