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

using model chemistry: LSDA/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/6-31G**
 hartrees
Energy at 0K-283.829897
Energy at 298.15K-283.836285
Nuclear repulsion energy224.240125
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 LSDA/6-31G**
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 3229 3168 0.54      
2 A 3204 3145 0.28      
3 A 3107 3049 1.13      
4 A 3073 3016 4.10      
5 A 2999 2943 7.93      
6 A 1606 1576 27.45      
7 A 1495 1467 6.97      
8 A 1476 1448 30.97      
9 A 1423 1396 10.62      
10 A 1410 1383 20.66      
11 A 1350 1324 4.66      
12 A 1273 1249 0.20      
13 A 1156 1134 11.76      
14 A 1053 1034 11.85      
15 A 1018 999 3.51      
16 A 1017 998 5.64      
17 A 979 961 14.04      
18 A 947 929 0.27      
19 A 903 886 13.32      
20 A 825 810 0.05      
21 A 756 742 40.73      
22 A 667 654 3.67      
23 A 656 644 0.00      
24 A 618 606 3.43      
25 A 326 320 7.04      
26 A 269 264 5.47      
27 A 134 132 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18482.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 18137.0 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 LSDA/6-31G**
ABC
0.30746 0.11908 0.08725

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.111 0.022 0.000
H2 2.517 0.534 0.888
H3 2.471 -1.017 0.000
H4 2.517 0.534 -0.888
C5 -1.480 0.567 0.000
O6 -1.362 -0.765 0.000
N7 -0.029 -1.102 -0.000
C8 0.634 0.036 0.000
C9 -0.251 1.144 -0.000
H10 -0.004 2.204 -0.000
H11 -2.498 0.956 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10251.10001.10253.63213.56132.41771.47732.61513.03884.7029
H21.10251.78831.77674.09424.18593.15422.14052.97023.15165.1103
H31.10001.78831.78834.25663.84112.50152.11773.47584.06235.3464
H41.10251.77671.78834.09424.18583.15392.14052.97013.15145.1104
C53.63214.09424.25664.09421.33762.21162.17941.35762.20401.0899
O63.56134.18593.84114.18581.33761.37482.15082.20923.26512.0622
N72.41773.15422.50153.15392.21161.37481.31762.25753.30643.2142
C81.47732.14052.11772.14052.17942.15081.31761.41802.25973.2642
C92.61512.97023.47582.97011.35762.20922.25751.41801.08822.2550
H103.03883.15164.06233.15142.20403.26513.30642.25971.08822.7891
H114.70295.11035.34645.11041.08992.06223.21423.26422.25502.7891

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 119.668 C1 C8 C9 129.163
H2 C1 H3 108.566 H2 C1 H4 107.362
H2 C1 C8 111.309 H3 C1 H4 108.566
H3 C1 C8 109.635 H4 C1 C8 111.307
C5 O6 N7 109.245 C5 C9 C8 103.458
C5 C9 H10 128.278 O6 C5 C9 110.102
O6 C5 H11 115.941 O6 N7 C8 106.026
N7 C8 C9 111.169 C8 C9 H10 128.264
C9 C5 H11 133.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.498      
2 H 0.167      
3 H 0.176      
4 H 0.167      
5 C 0.121      
6 O -0.268      
7 N -0.209      
8 C 0.263      
9 C -0.209      
10 H 0.133      
11 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.471 2.814 0.001 2.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.001 -1.770 -0.001
y -1.770 -35.732 -0.001
z -0.001 -0.001 -35.618
Traceless
 xyz
x 6.674 -1.770 -0.001
y -1.770 -3.423 -0.001
z -0.001 -0.001 -3.251
Polar
3z2-r2-6.503
x2-y26.731
xy-1.770
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.401 -0.190 -0.000
y -0.190 7.324 0.000
z -0.000 0.000 3.983


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000