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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-285.043595
Energy at 298.15K-285.049822
Nuclear repulsion energy222.148239
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3212 3193 0.34      
2 A 3170 3151 2.44      
3 A 3091 3073 4.67      
4 A 3047 3029 5.10      
5 A 2980 2962 14.52      
6 A 1602 1592 36.37      
7 A 1477 1468 34.52      
8 A 1411 1402 7.36      
9 A 1393 1385 8.19      
10 A 1343 1335 0.79      
11 A 1325 1318 6.44      
12 A 1232 1225 14.80      
13 A 1159 1152 11.48      
14 A 1016 1010 4.63      
15 A 1010 1004 4.03      
16 A 988 982 9.13      
17 A 957 951 2.09      
18 A 906 901 8.80      
19 A 860 855 11.70      
20 A 859 854 3.98      
21 A 771 767 28.83      
22 A 649 645 0.23      
23 A 630 626 1.93      
24 A 622 619 0.87      
25 A 324 323 1.90      
26 A 243 241 2.22      
27 A 79 79 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18176.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18071.3 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 PBEPBE/cc-pVDZ
ABC
0.30302 0.11748 0.08605

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.113 0.016 -0.000
H2 -2.478 -0.531 0.893
H3 -2.561 1.027 -0.000
H4 -2.478 -0.531 -0.893
C5 -0.627 0.111 -0.000
O6 0.064 -1.061 0.000
N7 1.443 -0.797 -0.000
C8 1.536 0.525 0.000
H9 2.534 0.980 0.000
C10 0.261 1.163 -0.000
H11 0.032 2.232 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.10921.10521.10921.48902.42903.64833.68394.74602.63623.0836
H21.10921.79751.78612.15302.74594.03074.24525.31053.34183.8379
H31.10521.79751.79752.13973.35394.40004.12715.09522.82492.8591
H41.10921.78611.79752.15302.74574.03064.24535.31063.34193.8380
C51.48902.15302.13972.15301.36062.26072.20203.27851.37662.2209
O62.42902.74593.35392.74571.36061.40482.16403.20442.23283.2931
N73.64834.03074.40004.03062.26071.40481.32512.08462.28883.3412
C83.68394.24524.12714.24532.20202.16401.32511.09711.42542.2744
H94.74605.31055.09525.31063.27853.20442.08461.09712.28072.7979
C102.63623.34182.82493.34191.37662.23282.28881.42542.28071.0931
H113.08363.83792.85913.83802.22093.29313.34122.27442.79791.0931

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 116.879 C1 C5 C10 133.801
H2 C1 H3 108.532 H2 C1 H4 107.241
H2 C1 C5 111.081 H3 C1 H4 108.533
H3 C1 C5 110.267 H4 C1 C5 111.081
C5 O6 N7 109.663 C5 C10 C8 103.591
C5 C10 H11 127.751 O6 C5 C10 109.319
O6 N7 C8 104.841 N7 C8 H9 118.463
N7 C8 C10 112.587 C8 C10 H11 128.658
H9 C8 C10 128.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.002      
2 H 0.068      
3 H 0.050      
4 H 0.067      
5 C 0.095      
6 O -0.140      
7 N -0.114      
8 C 0.122      
9 H 0.011      
10 C -0.148      
11 H -0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.904 2.261 0.000 2.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.273 3.283 0.000
y 3.283 -35.205 0.000
z 0.000 0.000 -35.883
Traceless
 xyz
x 4.271 3.283 0.000
y 3.283 -1.628 0.000
z 0.000 0.000 -2.643
Polar
3z2-r2-5.287
x2-y23.932
xy3.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.175 0.448 0.000
y 0.448 7.562 0.000
z 0.000 0.000 4.211


<r2> (average value of r2) Å2
<r2> 137.347
(<r2>)1/2 11.720