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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-285.357709
Energy at 298.15K-285.364167
Nuclear repulsion energy225.072595
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 mPW1PW91/6-311G**
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 3300 3157 0.24      
2 A 3262 3120 2.70      
3 A 3168 3031 7.37      
4 A 3131 2996 7.14      
5 A 3067 2934 11.83      
6 A 1666 1594 39.43      
7 A 1549 1482 48.93      
8 A 1492 1427 9.30      
9 A 1475 1412 9.82      
10 A 1415 1354 1.48      
11 A 1391 1331 8.47      
12 A 1283 1227 26.14      
13 A 1223 1170 10.85      
14 A 1066 1020 3.95      
15 A 1064 1017 3.14      
16 A 1038 993 12.22      
17 A 1019 975 2.14      
18 A 962 921 6.53      
19 A 933 893 17.44      
20 A 915 876 4.55      
21 A 819 783 40.59      
22 A 672 643 0.29      
23 A 659 631 1.61      
24 A 654 626 1.34      
25 A 338 323 2.45      
26 A 255 244 2.76      
27 A 95 91 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 18954.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18134.0 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 mPW1PW91/6-311G**
ABC
0.31215 0.12008 0.08814

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.094 0.015 -0.000
H2 -2.446 -0.524 0.882
H3 -2.537 1.010 -0.000
H4 -2.446 -0.525 -0.882
C5 -0.617 0.110 0.000
O6 0.065 -1.043 0.000
N7 1.420 -0.786 -0.000
C8 1.523 0.513 -0.000
H9 2.508 0.957 0.000
C10 0.258 1.150 0.000
H11 0.035 2.202 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09211.08881.09211.48082.40513.60453.65214.69802.61193.0532
H21.09211.77221.76402.12802.71233.97434.19685.24583.30063.7911
H31.08881.77221.77232.12013.31434.34504.09035.04492.79812.8350
H41.09211.76401.77232.12792.71193.97404.19685.24583.30083.7914
C51.48082.12802.12012.12791.34012.22532.17783.23751.35842.1914
O62.40512.71233.31432.71191.34011.37872.13243.15692.20113.2457
N73.60453.97434.34503.97402.22531.37871.30322.05462.25763.2937
C83.65214.19684.09034.19682.17782.13241.30321.08001.41652.2514
H94.69805.24585.04495.24583.23753.15692.05461.08002.25832.7688
C102.61193.30062.79813.30081.35842.20112.25761.41652.25831.0762
H113.05323.79112.83503.79142.19143.24573.29372.25142.76881.0762

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 116.904 C1 C5 C10 133.792
H2 C1 H3 108.702 H2 C1 H4 107.721
H2 C1 C5 110.693 H3 C1 H4 108.705
H3 C1 C5 110.256 H4 C1 C5 110.688
C5 O6 N7 109.858 C5 C10 C8 103.387
C5 C10 H11 127.963 O6 C5 C10 109.305
O6 N7 C8 105.299 N7 C8 H9 118.812
N7 C8 C10 112.151 C8 C10 H11 128.650
H9 C8 C10 129.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 H 0.153      
3 H 0.138      
4 H 0.153      
5 C 0.212      
6 O -0.228      
7 N -0.146      
8 C 0.101      
9 H 0.125      
10 C -0.343      
11 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.953 2.595 -0.000 3.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.078 3.614 0.000
y 3.614 -35.406 -0.000
z 0.000 -0.000 -35.988
Traceless
 xyz
x 4.619 3.614 0.000
y 3.614 -1.873 -0.000
z 0.000 -0.000 -2.746
Polar
3z2-r2-5.491
x2-y24.328
xy3.614
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.598 0.415 -0.000
y 0.415 7.467 0.000
z -0.000 0.000 4.447


<r2> (average value of r2) Å2
<r2> 134.609
(<r2>)1/2 11.602