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

using model chemistry: HF/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 HF/cc-pVDZ
 hartrees
Energy at 0K-283.654843
Energy at 298.15K-283.661649
Nuclear repulsion energy225.705423
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/cc-pVDZ
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 3449 3132 1.33      
2 A 3425 3110 0.04      
3 A 3302 2999 9.35      
4 A 3262 2962 18.95      
5 A 3194 2901 20.67      
6 A 1817 1650 41.86      
7 A 1656 1503 22.66      
8 A 1595 1448 30.81      
9 A 1580 1435 7.41      
10 A 1565 1421 44.60      
11 A 1515 1376 3.30      
12 A 1397 1268 6.31      
13 A 1265 1149 25.85      
14 A 1177 1069 8.71      
15 A 1153 1047 2.96      
16 A 1123 1020 2.41      
17 A 1054 957 44.81      
18 A 1044 948 0.59      
19 A 1029 935 0.69      
20 A 996 904 11.51      
21 A 868 788 44.31      
22 A 728 661 0.84      
23 A 706 641 8.42      
24 A 653 593 8.46      
25 A 359 326 7.51      
26 A 300 273 5.40      
27 A 145 132 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20179.1 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 18322.6 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 HF/cc-pVDZ
ABC
0.31334 0.11932 0.08783

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.122 0.029 -0.000
H2 2.500 0.547 0.883
H3 2.500 -0.991 -0.001
H4 2.500 0.548 -0.882
C5 -1.475 0.551 -0.000
O6 -1.350 -0.761 -0.000
N7 -0.029 -1.086 0.000
C8 0.627 0.019 0.000
C9 -0.270 1.142 0.000
H10 -0.036 2.192 0.000
H11 -2.481 0.937 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09121.08781.09123.63473.56002.42221.49512.63813.05464.6911
H21.09121.77391.76494.07184.16023.13672.13692.96723.14805.0729
H31.08781.77391.77394.26373.85622.53022.12823.49594.06895.3406
H41.09121.76491.77394.07164.16033.13702.13692.96693.14745.0727
C53.63474.07184.26374.07161.31822.18462.16811.34212.18251.0769
O63.56004.16023.85624.16031.31821.36032.12462.18763.23162.0403
N72.42223.13672.53023.13702.18461.36031.28482.24073.27733.1787
C81.49512.13692.12822.13692.16812.12461.28481.43682.27093.2400
C92.63812.96723.49592.96691.34212.18762.24071.43681.07552.2200
H103.05463.14804.06893.14742.18253.23163.27732.27091.07552.7481
H114.69115.07295.34065.07271.07692.04033.17873.24002.22002.7481

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 121.037 C1 C8 C9 128.248
H2 C1 H3 108.994 H2 C1 H4 107.934
H2 C1 C8 110.453 H3 C1 H4 108.993
H3 C1 C8 109.966 H4 C1 C8 110.452
C5 O6 N7 109.289 C5 C9 C8 102.510
C5 C9 H10 128.705 O6 C5 C9 110.638
O6 C5 H11 116.469 O6 N7 C8 106.849
N7 C8 C9 110.714 C8 C9 H10 128.785
C9 C5 H11 132.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.054 -0.203    
2 H 0.054 0.060    
3 H 0.060 0.066    
4 H 0.054 0.060    
5 C 0.312 0.216    
6 O -0.262 -0.117    
7 N -0.138 -0.451    
8 C 0.035 0.570    
9 C -0.259 -0.490    
10 H 0.029 0.183    
11 H 0.060 0.107    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.554 3.120 -0.000 3.169
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.397 -2.264 0.000
y -2.264 -36.799 0.000
z 0.000 0.000 -36.400
Traceless
 xyz
x 7.202 -2.264 0.000
y -2.264 -3.900 0.000
z 0.000 0.000 -3.302
Polar
3z2-r2-6.605
x2-y27.401
xy-2.264
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.728 0.085 0.000
y 0.085 6.873 0.000
z 0.000 0.000 4.050


<r2> (average value of r2) Å2
<r2> 135.057
(<r2>)1/2 11.621