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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-245.779797
Energy at 298.15K 
HF Energy-245.779797
Nuclear repulsion energy162.685299
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 HSEh1PBE/6-31G*
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' 3332 3169 0.12 109.75 0.10 0.18
2 A' 3309 3147 0.02 49.22 0.70 0.82
3 A' 3288 3127 1.75 88.85 0.39 0.56
4 A' 1640 1560 8.63 1.20 0.12 0.22
5 A' 1505 1432 32.62 28.78 0.33 0.50
6 A' 1431 1361 6.09 1.98 0.23 0.37
7 A' 1272 1210 7.64 11.22 0.25 0.40
8 A' 1185 1127 15.52 2.66 0.67 0.81
9 A' 1152 1096 8.35 10.27 0.19 0.31
10 A' 1063 1011 4.59 4.52 0.65 0.79
11 A' 956 909 33.26 5.51 0.14 0.25
12 A' 935 889 4.81 2.64 0.69 0.81
13 A' 929 883 4.12 2.30 0.75 0.86
14 A" 913 868 5.21 2.32 0.75 0.86
15 A" 875 832 0.02 0.31 0.75 0.86
16 A" 791 752 53.16 1.30 0.75 0.86
17 A" 659 627 1.48 0.50 0.75 0.86
18 A" 616 586 15.03 1.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12925.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12291.8 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 HSEh1PBE/6-31G*
ABC
0.33005 0.32346 0.16336

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.365 0.000
C2 0.612 -0.958 0.000
C3 0.000 1.121 0.000
N4 -0.696 -0.981 0.000
O5 -1.085 0.340 0.000
H6 2.155 0.691 0.000
H7 1.152 -1.896 0.000
H8 -0.187 2.186 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41871.35712.26542.21191.07912.26112.2454
C21.41872.16751.30852.13672.25791.08263.2435
C31.35712.16752.21491.33752.19763.23021.0806
N42.26541.30852.21491.37723.30522.06183.2077
O52.21192.13671.33751.37723.25933.16302.0530
H61.07912.25792.19763.30523.25932.77502.7783
H72.26111.08263.23022.06183.16302.77504.2960
H82.24543.24351.08063.20772.05302.77834.2960

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.274 C1 C2 H7 128.870
C1 C3 O5 110.337 C1 C3 H8 133.859
C2 C1 C3 102.654 C2 C1 H6 128.850
C2 N4 O5 105.395 C3 C1 H6 128.496
C3 O5 N4 109.341 N4 C2 H7 118.856
O5 C3 H8 115.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.289      
2 C 0.025      
3 C 0.129      
4 N -0.152      
5 O -0.315      
6 H 0.193      
7 H 0.200      
8 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.533 1.533 0.000 2.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.987 -2.498 0.000
y -2.498 -24.501 0.000
z 0.000 0.000 -29.587
Traceless
 xyz
x -0.943 -2.498 0.000
y -2.498 4.286 0.000
z 0.000 0.000 -3.344
Polar
3z2-r2-6.687
x2-y2-3.486
xy-2.498
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.927 -0.231 0.000
y -0.231 6.543 0.000
z 0.000 0.000 2.446


<r2> (average value of r2) Å2
<r2> 76.131
(<r2>)1/2 8.725