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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HSEh1PBE/3-21G*

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/3-21G*
 hartrees
Energy at 0K-244.411784
Energy at 298.15K 
HF Energy-244.411784
Nuclear repulsion energy159.339069
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/3-21G*
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' 3350 3215 1.35 94.39 0.10 0.18
2 A' 3320 3187 0.91 54.40 0.63 0.77
3 A' 3298 3166 0.89 73.16 0.39 0.56
4 A' 1580 1517 10.09 4.03 0.12 0.22
5 A' 1428 1371 26.58 22.55 0.45 0.62
6 A' 1386 1330 4.26 5.85 0.16 0.28
7 A' 1239 1189 7.04 8.43 0.30 0.46
8 A' 1159 1112 17.58 8.34 0.58 0.74
9 A' 1093 1049 2.94 7.44 0.14 0.24
10 A' 1046 1004 14.37 2.50 0.69 0.82
11 A' 951 913 3.14 5.17 0.65 0.79
12 A' 914 877 0.73 1.68 0.45 0.62
13 A' 831 798 16.52 7.16 0.15 0.27
14 A" 963 924 1.57 1.64 0.75 0.86
15 A" 918 881 4.71 1.46 0.75 0.86
16 A" 816 783 83.78 1.18 0.75 0.86
17 A" 646 620 10.84 0.12 0.75 0.86
18 A" 595 572 8.85 1.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12766.2 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 12254.3 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/3-21G*
ABC
0.31950 0.30751 0.15669

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.383 0.000
C2 0.638 -0.959 0.000
C3 0.000 1.146 0.000
N4 -0.682 -1.045 0.000
O5 -1.124 0.355 0.000
H6 2.148 0.709 0.000
H7 1.218 -1.867 0.000
H8 -0.165 2.210 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42731.35812.30252.24831.07472.25242.2351
C21.42732.19921.32262.19782.24971.07813.2683
C31.35812.19922.29491.37492.19203.25011.0762
N42.30251.32262.29491.46823.32942.07053.2955
O52.24832.19781.37491.46823.29143.22882.0882
H61.07472.24972.19203.32943.29142.73852.7570
H72.25241.07813.25012.07053.22882.73854.3049
H82.23513.26831.07623.29552.08822.75704.3049

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 113.657 C1 C2 H7 127.508
C1 C3 O5 110.702 C1 C3 H8 132.976
C2 C1 C3 104.256 C2 C1 H6 127.539
C2 N4 O5 103.787 C3 C1 H6 128.205
C3 O5 N4 107.598 N4 C2 H7 118.835
O5 C3 H8 116.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.387      
2 C 0.046      
3 C 0.142      
4 N -0.220      
5 O -0.363      
6 H 0.237      
7 H 0.271      
8 H 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.901 1.503 0.000 3.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.716 -2.562 0.000
y -2.562 -24.397 0.000
z 0.000 0.000 -30.338
Traceless
 xyz
x -1.349 -2.562 0.000
y -2.562 5.130 0.000
z 0.000 0.000 -3.781
Polar
3z2-r2-7.562
x2-y2-4.319
xy-2.562
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.532 -0.301 0.000
y -0.301 6.249 0.000
z 0.000 0.000 1.765


<r2> (average value of r2) Å2
<r2> 78.687
(<r2>)1/2 8.871