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

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-283.699314
Energy at 298.15K-283.706122
Nuclear repulsion energy226.153150
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 HF/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 3432 3118 1.84      
2 A 3408 3096 0.13      
3 A 3276 2976 12.40      
4 A 3235 2939 23.44      
5 A 3179 2889 20.05      
6 A 1810 1644 41.74      
7 A 1646 1496 22.50      
8 A 1605 1458 10.77      
9 A 1600 1454 7.94      
10 A 1572 1428 62.90      
11 A 1528 1388 5.06      
12 A 1400 1272 6.70      
13 A 1266 1150 24.32      
14 A 1186 1078 8.48      
15 A 1161 1055 2.11      
16 A 1127 1024 3.14      
17 A 1066 968 50.15      
18 A 1047 952 2.26      
19 A 1041 946 0.66      
20 A 997 906 7.94      
21 A 879 799 51.59      
22 A 729 662 0.60      
23 A 703 638 8.54      
24 A 653 593 8.37      
25 A 360 327 7.55      
26 A 300 273 5.58      
27 A 138 126 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 20172.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 18326.4 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 HF/6-311G**
ABC
0.31492 0.11961 0.08809

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.120 0.030 0.000
H2 -2.495 0.546 -0.878
H3 -2.497 -0.984 -0.000
H4 -2.495 0.546 0.878
C5 1.473 0.552 0.000
O6 1.349 -0.759 0.000
N7 0.028 -1.083 -0.000
C8 -0.625 0.018 -0.000
C9 0.271 1.139 -0.000
H10 0.036 2.181 -0.000
H11 2.471 0.937 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.08521.08161.08523.63093.55762.42011.49532.63623.04554.6801
H21.08521.76411.75594.06364.15293.12942.13212.96193.13775.0580
H31.08161.76411.76414.25683.85242.52772.12343.48864.05365.3267
H41.08521.75591.76414.06364.15283.12932.13202.96193.13785.0579
C53.63094.06364.25684.06361.31692.18182.16481.33732.17251.0699
O63.55764.15293.85244.15281.31691.35942.12122.18243.22002.0341
N72.42013.12942.52773.12932.18181.35941.28072.23543.26433.1699
C81.49532.13212.12342.13202.16482.12121.28071.43512.26163.2296
C92.63622.96193.48862.96191.33732.18242.23541.43511.06852.2090
H103.04553.13774.05363.13782.17253.22003.26432.26161.06852.7347
H114.68015.05805.32675.05791.06992.03413.16993.22962.20902.7347

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 121.140 C1 C8 C9 128.193
H2 C1 H3 109.010 H2 C1 H4 108.012
H2 C1 C8 110.415 H3 C1 H4 109.009
H3 C1 C8 109.936 H4 C1 C8 110.413
C5 O6 N7 109.212 C5 C9 C8 102.616
C5 C9 H10 128.779 O6 C5 C9 110.619
O6 C5 H11 116.523 O6 N7 C8 106.886
N7 C8 C9 110.667 C8 C9 H10 128.605
C9 C5 H11 132.858
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.187      
2 H 0.112      
3 H 0.127      
4 H 0.112      
5 C 0.283      
6 O -0.281      
7 N -0.186      
8 C 0.190      
9 C -0.410      
10 H 0.110      
11 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.567 3.211 0.000 3.261
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.400 2.347 0.000
y 2.347 -36.957 0.000
z 0.000 0.000 -36.434
Traceless
 xyz
x 7.295 2.347 0.000
y 2.347 -4.040 0.000
z 0.000 0.000 -3.255
Polar
3z2-r2-6.510
x2-y27.557
xy2.347
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.739 -0.112 0.000
y -0.112 7.012 0.000
z 0.000 0.000 4.340


<r2> (average value of r2) Å2
<r2> 134.707
(<r2>)1/2 11.606