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

using model chemistry: LSDA/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 LSDA/STO-3G
 hartrees
Energy at 0K-280.192268
Energy at 298.15K-280.198281
Nuclear repulsion energy218.369298
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/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 3509 3142 28.08      
2 A 3471 3108 2.74      
3 A 3463 3101 31.06      
4 A 3442 3082 1.29      
5 A 3290 2946 0.72      
6 A 1651 1478 15.96      
7 A 1615 1446 12.99      
8 A 1614 1446 10.00      
9 A 1562 1399 22.94      
10 A 1506 1348 0.00      
11 A 1449 1297 4.63      
12 A 1332 1193 2.25      
13 A 1179 1056 4.53      
14 A 1115 999 8.98      
15 A 1098 983 4.56      
16 A 1067 956 9.75      
17 A 1039 930 0.28      
18 A 1008 903 1.55      
19 A 908 813 1.68      
20 A 883 791 0.53      
21 A 778 697 28.94      
22 A 667 598 2.39      
23 A 641 574 0.28      
24 A 590 528 0.06      
25 A 317 284 4.01      
26 A 267 239 4.03      
27 A 119 107 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 19789.1 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 17721.2 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/STO-3G
ABC
0.28924 0.11367 0.08289

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.159 0.019 0.000
H2 -2.555 0.532 -0.893
H3 -2.516 -1.022 -0.000
H4 -2.555 0.532 0.893
C5 1.493 0.619 0.000
O6 1.429 -0.775 -0.000
N7 0.037 -1.158 -0.000
C8 -0.652 0.034 0.000
C9 0.231 1.160 -0.000
H10 -0.044 2.218 -0.000
H11 2.500 1.059 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10301.10071.10303.70113.67532.49271.50762.64883.05114.7740
H21.10301.79291.78564.14604.28703.22122.16022.99243.15355.1602
H31.10071.79291.79294.33113.95212.55672.14223.50784.07515.4302
H41.10301.78561.79294.14604.28693.22122.16022.99253.15375.1601
C53.70114.14604.33114.14601.39532.29682.22291.37262.21781.0993
O63.67534.28703.95214.28691.39531.44322.23292.27543.33572.1243
N72.49273.22122.55673.22122.29681.44321.37782.32603.37713.3138
C81.50762.16022.14222.16022.22292.23291.37781.43042.26653.3143
C92.64882.99243.50782.99251.37262.27542.32601.43041.09342.2708
H103.05113.15354.07513.15372.21783.33573.37712.26651.09342.7950
H114.77405.16025.43025.16011.09932.12433.31383.31432.27082.7950

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 119.456 C1 C8 C9 128.710
H2 C1 H3 108.898 H2 C1 H4 108.091
H2 C1 C8 110.729 H3 C1 H4 108.898
H3 C1 C8 109.447 H4 C1 C8 110.730
C5 O6 N7 108.020 C5 C9 C8 104.926
C5 C9 H10 127.782 O6 C5 C9 110.586
O6 C5 H11 116.264 O6 N7 C8 104.635
N7 C8 C9 111.834 C8 C9 H10 127.293
C9 C5 H11 133.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.283      
2 H 0.112      
3 H 0.119      
4 H 0.112      
5 C -0.030      
6 O -0.035      
7 N -0.128      
8 C 0.038      
9 C -0.146      
10 H 0.115      
11 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.285 2.256 0.000 2.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.524 1.308 0.000
y 1.308 -33.426 -0.000
z 0.000 -0.000 -32.641
Traceless
 xyz
x 5.510 1.308 0.000
y 1.308 -3.343 -0.000
z 0.000 -0.000 -2.166
Polar
3z2-r2-4.333
x2-y25.902
xy1.308
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.998 0.194 0.000
y 0.194 4.404 0.000
z 0.000 0.000 1.575


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