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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HSEh1PBE/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-245.798247
Energy at 298.15K 
HF Energy-245.798247
Nuclear repulsion energy163.064700
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(2df,p)
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' 3316 3176 0.14 100.84 0.11 0.20
2 A' 3286 3147 0.02 52.25 0.57 0.73
3 A' 3270 3131 1.13 86.97 0.39 0.56
4 A' 1626 1557 8.38 1.11 0.13 0.23
5 A' 1491 1428 30.37 27.92 0.27 0.43
6 A' 1419 1359 8.00 1.74 0.27 0.42
7 A' 1262 1209 7.49 12.16 0.20 0.33
8 A' 1181 1131 14.95 2.54 0.66 0.79
9 A' 1145 1097 8.37 10.58 0.14 0.25
10 A' 1056 1011 4.67 4.32 0.63 0.77
11 A' 960 920 31.31 4.90 0.11 0.19
12 A' 935 895 4.94 2.10 0.73 0.85
13 A' 928 889 3.75 1.99 0.75 0.86
14 A" 924 885 4.46 1.58 0.75 0.86
15 A" 883 845 0.09 0.19 0.75 0.86
16 A" 798 764 46.88 0.87 0.75 0.86
17 A" 664 636 1.76 0.47 0.75 0.86
18 A" 620 593 13.18 0.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12880.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12335.9 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(2df,p)
ABC
0.33121 0.32528 0.16411

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.363 0.000
C2 0.611 -0.958 0.000
C3 0.000 1.118 0.000
N4 -0.696 -0.976 0.000
O5 -1.082 0.340 0.000
H6 2.151 0.691 0.000
H7 1.147 -1.896 0.000
H8 -0.185 2.181 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41751.35502.26022.20791.07712.25952.2412
C21.41752.16331.30632.13302.25661.08113.2382
C31.35502.16332.20611.33302.19323.22491.0795
N42.26021.30632.20611.37143.29902.05983.1981
O52.20792.13301.33301.37143.25273.15772.0484
H61.07712.25662.19323.29903.25272.77552.7712
H72.25951.08113.22492.05983.15772.77554.2897
H82.24123.23821.07953.19812.04842.77124.2897

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.093 C1 C2 H7 128.955
C1 C3 O5 110.452 C1 C3 H8 133.721
C2 C1 C3 102.550 C2 C1 H6 129.028
C2 N4 O5 105.588 C3 C1 H6 128.422
C3 O5 N4 109.318 N4 C2 H7 118.953
O5 C3 H8 115.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.287      
2 C 0.018      
3 C 0.075      
4 N -0.119      
5 O -0.177      
6 H 0.154      
7 H 0.160      
8 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.405 1.503 0.000 2.836
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.752 -2.497 0.000
y -2.497 -24.541 0.000
z 0.000 0.000 -29.353
Traceless
 xyz
x -0.805 -2.497 0.000
y -2.497 4.011 0.000
z 0.000 0.000 -3.206
Polar
3z2-r2-6.412
x2-y2-3.211
xy-2.497
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.094 -0.214 0.000
y -0.214 6.768 0.000
z 0.000 0.000 2.949


<r2> (average value of r2) Å2
<r2> 75.783
(<r2>)1/2 8.705