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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-245.936228
Energy at 298.15K 
HF Energy-245.936228
Nuclear repulsion energy162.833806
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 M06-2X/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' 3339 3173 0.73 101.26 0.12 0.21
2 A' 3307 3143 0.21 63.25 0.52 0.69
3 A' 3291 3128 1.10 94.46 0.37 0.54
4 A' 1657 1575 9.57 1.03 0.18 0.30
5 A' 1514 1439 34.35 32.10 0.30 0.46
6 A' 1435 1364 9.19 1.84 0.44 0.61
7 A' 1279 1215 9.94 10.88 0.30 0.47
8 A' 1197 1137 12.60 2.96 0.53 0.69
9 A' 1152 1095 9.91 10.28 0.22 0.37
10 A' 1057 1004 2.01 4.94 0.60 0.75
11 A' 986 937 42.85 5.00 0.13 0.24
12 A' 938 891 3.88 1.66 0.74 0.85
13 A' 931 885 3.90 3.53 0.74 0.85
14 A" 929 883 4.77 2.40 0.75 0.86
15 A" 902 857 0.06 1.10 0.75 0.86
16 A" 799 760 52.97 1.64 0.75 0.86
17 A" 662 629 1.23 0.52 0.75 0.86
18 A" 618 587 15.29 1.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12995.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 12351.3 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 M06-2X/6-31G**
ABC
0.33110 0.32344 0.16361

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.367 0.000
C2 0.611 -0.960 0.000
C3 0.000 1.121 0.000
N4 -0.695 -0.979 0.000
O5 -1.083 0.337 0.000
H6 2.153 0.694 0.000
H7 1.148 -1.898 0.000
H8 -0.187 2.184 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42371.35542.26462.20981.07722.26542.2421
C21.42372.16891.30592.13362.26121.08113.2439
C31.35542.16892.21191.33732.19473.23011.0795
N42.26461.30592.21191.37203.30262.05963.2036
O52.20982.13361.33731.37203.25573.15842.0532
H61.07722.26122.19473.30263.25572.78002.7740
H72.26541.08113.23012.05963.15842.78004.2952
H82.24213.24391.07953.20362.05322.77404.2952

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.055 C1 C2 H7 128.973
C1 C3 O5 110.307 C1 C3 H8 133.774
C2 C1 C3 102.570 C2 C1 H6 128.894
C2 N4 O5 105.619 C3 C1 H6 128.535
C3 O5 N4 109.449 N4 C2 H7 118.972
O5 C3 H8 115.919
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.236      
2 C 0.073      
3 C 0.180      
4 N -0.154      
5 O -0.341      
6 H 0.150      
7 H 0.159      
8 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.554 1.525 0.000 2.974
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.184 -2.482 0.000
y -2.482 -24.559 0.000
z 0.000 0.000 -29.706
Traceless
 xyz
x -1.052 -2.482 0.000
y -2.482 4.386 0.000
z 0.000 0.000 -3.334
Polar
3z2-r2-6.668
x2-y2-3.625
xy-2.482
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.968 -0.264 0.000
y -0.264 6.547 0.000
z 0.000 0.000 2.459


<r2> (average value of r2) Å2
<r2> 76.122
(<r2>)1/2 8.725