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All results from a given calculation for C4H5NO (Isoxazole, 5-methyl-)

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 C1 1A
Energy calculated at M06-2X/6-31G*
 hartrees
Energy at 0K-285.234567
Energy at 298.15K-285.240944
HF Energy-285.234567
Nuclear repulsion energy224.709458
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 3322 3146 0.75      
2 A 3271 3098 2.00      
3 A 3189 3020 4.87      
4 A 3165 2997 4.35      
5 A 3093 2929 7.62      
6 A 1700 1609 36.22      
7 A 1578 1494 48.00      
8 A 1520 1440 6.91      
9 A 1501 1421 8.02      
10 A 1438 1362 2.45      
11 A 1412 1337 9.86      
12 A 1304 1234 24.73      
13 A 1233 1168 9.51      
14 A 1081 1024 4.39      
15 A 1077 1020 4.15      
16 A 1050 994 16.20      
17 A 1041 986 1.01      
18 A 979 927 7.71      
19 A 944 894 14.44      
20 A 913 864 2.83      
21 A 822 778 36.12      
22 A 674 639 0.54      
23 A 659 624 3.44      
24 A 655 620 0.12      
25 A 332 314 2.23      
26 A 252 239 2.32      
27 A 66 62 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 19133.6 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 18119.6 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
0.31097 0.11965 0.08782

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.078 0.016 0.001
H2 -2.453 -0.173 1.008
H3 -2.467 0.972 -0.347
H4 -2.440 -0.775 -0.657
C5 -0.613 0.049 -0.002
O6 0.142 -1.071 -0.001
N7 1.425 -0.723 0.001
C8 1.469 0.569 0.001
H9 2.361 1.098 -0.001
C10 0.213 1.101 -0.000
H11 -0.054 2.103 0.001

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09201.08901.09111.46472.47183.58013.58924.56862.53472.9066
H21.09201.77471.77072.11022.92514.04394.11605.07993.12213.4567
H31.08901.77471.77532.09973.33214.25983.97184.84232.70582.6872
H41.09111.77071.77532.10852.68063.92144.18565.19553.31553.7962
C51.46472.11022.09972.10851.35082.17972.14603.15401.33802.1291
O62.47182.92513.33212.68061.35081.32962.10933.10312.17313.1804
N73.58014.04394.25983.92142.17971.32961.29242.04742.18983.1900
C83.58924.11603.97184.18562.14602.10931.29241.03751.36362.1621
H94.56865.07994.84235.19553.15403.10312.04741.03752.14782.6163
C102.53473.12212.70583.31551.33802.17312.18981.36362.14781.0374
H112.90663.45672.68723.79622.12913.18043.19002.16212.61631.0374

picture of Isoxazole, 5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 O6 122.735 C1 C5 C10 129.421
H2 C1 H3 108.919 H2 C1 H4 108.405
H2 C1 C5 110.398 H3 C1 H4 109.036
H3 C1 C5 109.733 H4 C1 C5 110.314
C5 O6 N7 108.820 C5 C10 C8 105.183
C5 C10 H11 126.891 O6 C5 C10 107.844
O6 N7 C8 107.109 N7 C8 H9 122.606
N7 C8 C10 111.043 C8 C10 H11 127.926
H9 C8 C10 126.350
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 -0.542      
2 H 0.203      
3 H 0.188      
4 H 0.203      
5 C 0.380      
6 O -0.377      
7 N -0.153      
8 C 0.023      
9 H 0.196      
10 C -0.303      
11 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.882 2.573 0.000 3.188
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.003 -3.535 0.000
y -3.535 -35.205 0.000
z 0.000 0.000 -35.803
Traceless
 xyz
x 4.501 -3.535 0.000
y -3.535 -1.802 0.000
z 0.000 0.000 -2.699
Polar
3z2-r2-5.397
x2-y24.202
xy-3.535
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.000 -0.408 0.000
y -0.408 7.133 0.000
z 0.000 0.000 3.858


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000