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All results from a given calculation for C4H5NO (3-Methylisoxazole)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-281.614579
Energy at 298.15K-281.620400
Nuclear repulsion energy214.471915
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 BLYP/STO-3G
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 3415 3159 11.54      
2 A 3377 3125 0.00      
3 A 3370 3118 14.36      
4 A 3347 3097 0.39      
5 A 3203 2963 0.51      
6 A 1629 1507 6.03      
7 A 1616 1495 5.42      
8 A 1573 1456 11.65      
9 A 1512 1399 0.18      
10 A 1481 1370 21.75      
11 A 1372 1269 4.56      
12 A 1295 1198 1.02      
13 A 1126 1042 3.60      
14 A 1105 1022 4.17      
15 A 1069 989 1.46      
16 A 1041 963 6.65      
17 A 976 903 2.23      
18 A 968 896 1.48      
19 A 872 807 1.75      
20 A 840 778 0.78      
21 A 751 695 22.81      
22 A 633 586 3.30      
23 A 610 564 0.59      
24 A 548 507 0.01      
25 A 313 289 2.83      
26 A 254 235 2.91      
27 A 110 102 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 19202.9 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 17766.6 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 BLYP/STO-3G
ABC
0.27972 0.10936 0.07983

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.202 0.022 0.000
H2 2.597 0.541 0.900
H3 2.571 -1.023 -0.000
H4 2.597 0.542 -0.899
C5 -1.515 0.637 -0.000
O6 -1.468 -0.785 0.000
N7 -0.033 -1.184 -0.000
C8 0.662 0.030 0.000
C9 -0.235 1.174 0.000
H10 0.046 2.238 0.000
H11 -2.524 1.091 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.11111.10851.11113.76753.75792.54061.54082.69543.09234.8454
H21.11111.80491.79904.20994.36923.27202.19453.03773.19355.2281
H31.10851.80491.80494.41034.04612.60972.18093.56374.12505.5161
H41.11111.79901.80494.20984.36943.27222.19453.03733.19295.2279
C53.76754.20994.41034.20981.42292.34772.25921.38822.23601.1064
O63.75794.36924.04614.36941.42291.48892.28022.31503.38122.1527
N72.54063.27202.60973.27222.34771.48891.39942.36703.42373.3731
C81.54082.19452.18092.19452.25922.28021.39941.45302.29243.3573
C92.69543.03773.56373.03731.38822.31502.36701.45301.10072.2907
H103.09233.19354.12503.19292.23603.38123.42372.29241.10072.8142
H114.84545.22815.51615.22791.10642.15273.37313.35732.29072.8142

picture of 3-Methylisoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 N7 119.477 C1 C8 C9 128.380
H2 C1 H3 108.819 H2 C1 H4 108.110
H2 C1 C8 110.650 H3 C1 H4 108.820
H3 C1 C8 109.741 H4 C1 C8 110.649
C5 O6 N7 107.441 C5 C9 C8 105.319
C5 C9 H10 127.517 O6 C5 C9 110.873
O6 C5 H11 116.097 O6 N7 C8 104.223
N7 C8 C9 112.144 C8 C9 H10 127.165
C9 C5 H11 133.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 H 0.088      
3 H 0.095      
4 H 0.088      
5 C -0.002      
6 O -0.048      
7 N -0.124      
8 C 0.048      
9 C -0.120      
10 H 0.091      
11 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.309 2.178 0.000 2.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.170 -1.373 0.000
y -1.373 -33.821 -0.000
z 0.000 -0.000 -32.865
Traceless
 xyz
x 5.173 -1.373 0.000
y -1.373 -3.303 -0.000
z 0.000 -0.000 -1.869
Polar
3z2-r2-3.739
x2-y25.651
xy-1.373
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.417 -0.222 0.000
y -0.222 4.672 0.000
z 0.000 0.000 1.641


<r2> (average value of r2) Å2
<r2> 144.201
(<r2>)1/2 12.008