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

using model chemistry: HF/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-283.737041
Energy at 298.15K-283.743859
Nuclear repulsion energy226.360122
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/aug-cc-pVTZ
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 3426 3119 1.14      
2 A 3403 3098 0.19      
3 A 3268 2976 11.06      
4 A 3226 2937 18.27      
5 A 3175 2890 18.65      
6 A 1800 1638 46.05      
7 A 1640 1493 20.59      
8 A 1603 1459 11.12      
9 A 1601 1457 7.10      
10 A 1569 1429 62.34      
11 A 1530 1393 6.73      
12 A 1401 1276 8.63      
13 A 1263 1150 25.10      
14 A 1186 1079 6.79      
15 A 1164 1060 1.77      
16 A 1124 1024 4.16      
17 A 1052 958 43.38      
18 A 1044 951 1.44      
19 A 1044 950 1.51      
20 A 993 904 9.22      
21 A 873 795 56.25      
22 A 729 664 0.27      
23 A 700 637 8.91      
24 A 652 594 6.58      
25 A 361 329 7.48      
26 A 301 274 5.18      
27 A 142 130 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 20135.0 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 18330.9 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/aug-cc-pVTZ
ABC
0.31584 0.11978 0.08825

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.118 0.030 -0.000
H2 2.491 0.546 0.876
H3 2.498 -0.981 -0.000
H4 2.491 0.547 -0.875
C5 -1.470 0.552 -0.000
O6 -1.351 -0.757 -0.000
N7 -0.028 -1.083 0.000
C8 0.625 0.017 -0.000
C9 -0.269 1.136 0.000
H10 -0.035 2.176 0.000
H11 -2.464 0.943 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.08311.07951.08313.62593.55702.41721.49272.63123.04024.6725
H21.08311.76071.75134.05664.15043.12512.12792.95523.13095.0476
H31.07951.76071.76074.25393.85552.52822.12183.48414.04755.3222
H41.08311.75131.76074.05644.15053.12542.12792.95503.13045.0475
C53.62594.05664.25394.05641.31492.18022.16271.33512.16741.0683
O63.55704.15043.85554.15051.31491.36242.12232.18043.21532.0322
N72.41723.12512.52823.12542.18021.36241.27902.23203.25933.1685
C81.49272.12792.12182.12792.16272.12231.27901.43302.25843.2256
C92.63122.95523.48412.95501.33512.18042.23201.43301.06642.2036
H103.04023.13094.04753.13042.16743.21533.25932.25841.06642.7249
H114.67255.04765.32225.04751.06832.03223.16853.22562.20362.7249

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 121.220 C1 C8 C9 128.131
H2 C1 H3 109.004 H2 C1 H4 107.885
H2 C1 C8 110.390 H3 C1 H4 109.004
H3 C1 C8 110.116 H4 C1 C8 110.390
C5 O6 N7 109.029 C5 C9 C8 102.702
C5 C9 H10 128.635 O6 C5 C9 110.731
O6 C5 H11 116.640 O6 N7 C8 106.889
N7 C8 C9 110.649 C8 C9 H10 128.664
C9 C5 H11 132.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.815      
2 H 0.298      
3 H 0.299      
4 H 0.298      
5 C -0.660      
6 O -0.356      
7 N -0.548      
8 C 0.745      
9 C -0.465      
10 H 0.491      
11 H 0.713      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.620 3.135 -0.000 3.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.483 -2.105 0.000
y -2.105 -37.104 0.000
z 0.000 0.000 -36.530
Traceless
 xyz
x 7.333 -2.105 0.000
y -2.105 -4.097 0.000
z 0.000 0.000 -3.236
Polar
3z2-r2-6.472
x2-y27.620
xy-2.105
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.620 -0.003 0.000
y -0.003 7.933 0.000
z 0.000 0.000 5.700


<r2> (average value of r2) Å2
<r2> 134.553
(<r2>)1/2 11.600