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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-245.784630
Energy at 298.15K 
HF Energy-245.784630
Nuclear repulsion energy162.699669
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' 3327 3174 0.21 107.55 0.10 0.18
2 A' 3301 3150 0.03 53.41 0.64 0.78
3 A' 3280 3130 1.39 88.75 0.38 0.55
4 A' 1638 1563 8.60 1.25 0.12 0.21
5 A' 1505 1436 32.32 29.12 0.33 0.50
6 A' 1428 1363 6.12 2.05 0.23 0.37
7 A' 1268 1210 7.71 11.55 0.25 0.39
8 A' 1182 1128 15.11 2.60 0.69 0.81
9 A' 1150 1097 8.43 10.46 0.19 0.32
10 A' 1061 1012 4.62 4.73 0.66 0.79
11 A' 956 913 33.76 5.45 0.14 0.24
12 A' 934 891 4.88 2.32 0.70 0.82
13 A' 928 886 3.81 2.57 0.74 0.85
14 A" 916 874 5.11 2.28 0.75 0.86
15 A" 879 839 0.05 0.41 0.75 0.86
16 A" 792 756 52.27 1.37 0.75 0.86
17 A" 659 629 1.49 0.51 0.75 0.86
18 A" 617 588 14.60 1.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12909.2 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 12319.3 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 HSEh1PBE/6-31G**
ABC
0.33013 0.32349 0.16339

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 0.364 0.000
C2 0.612 -0.958 0.000
C3 0.000 1.122 0.000
N4 -0.696 -0.981 0.000
O5 -1.085 0.340 0.000
H6 2.154 0.691 0.000
H7 1.152 -1.896 0.000
H8 -0.184 2.186 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41861.35712.26502.21161.07842.26042.2439
C21.41862.16781.30852.13672.25731.08223.2432
C31.35712.16782.21481.33772.19663.22991.0802
N42.26501.30852.21481.37683.30422.06213.2080
O52.21162.13671.33771.37683.25833.16272.0545
H61.07842.25732.19663.30423.25832.77412.7752
H72.26041.08223.22992.06213.16272.77414.2949
H82.24393.24321.08023.20802.05452.77524.2949

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.247 C1 C2 H7 128.846
C1 C3 O5 110.311 C1 C3 H8 133.734
C2 C1 C3 102.680 C2 C1 H6 128.863
C2 N4 O5 105.415 C3 C1 H6 128.457
C3 O5 N4 109.348 N4 C2 H7 118.907
O5 C3 H8 115.955
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 -0.247      
2 C 0.077      
3 C 0.179      
4 N -0.160      
5 O -0.321      
6 H 0.147      
7 H 0.158      
8 H 0.166      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.527 1.529 0.000 2.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.009 -2.493 0.000
y -2.493 -24.510 0.000
z 0.000 0.000 -29.553
Traceless
 xyz
x -0.977 -2.493 0.000
y -2.493 4.271 0.000
z 0.000 0.000 -3.294
Polar
3z2-r2-6.587
x2-y2-3.499
xy-2.493
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.962 -0.237 0.000
y -0.237 6.589 0.000
z 0.000 0.000 2.478


<r2> (average value of r2) Å2
<r2> 76.119
(<r2>)1/2 8.725