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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-285.307748
Energy at 298.15K-285.314122
Nuclear repulsion energy219.180196
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 B3LYP/SDD
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 3328 3199 0.17      
2 A 3299 3172 0.31      
3 A 3168 3046 10.22      
4 A 3131 3010 19.96      
5 A 3054 2936 18.20      
6 A 1585 1524 28.84      
7 A 1511 1453 17.93      
8 A 1511 1453 16.63      
9 A 1462 1405 19.12      
10 A 1447 1391 10.88      
11 A 1415 1360 23.88      
12 A 1284 1234 1.02      
13 A 1135 1091 15.27      
14 A 1085 1043 6.92      
15 A 1045 1004 18.47      
16 A 1030 990 0.90      
17 A 981 943 2.11      
18 A 916 880 2.57      
19 A 908 873 1.66      
20 A 837 804 21.95      
21 A 813 782 74.61      
22 A 664 638 0.03      
23 A 650 624 7.25      
24 A 583 561 5.32      
25 A 331 319 7.82      
26 A 270 259 5.81      
27 A 121 116 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18781.3 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 18054.4 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 B3LYP/SDD
ABC
0.29473 0.11366 0.08331

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.155 0.033 0.000
H2 2.542 0.549 0.888
H3 2.539 -0.992 -0.002
H4 2.542 0.553 -0.885
C5 -1.508 0.604 -0.000
O6 -1.421 -0.776 0.000
N7 -0.010 -1.143 -0.000
C8 0.653 0.025 -0.000
C9 -0.250 1.153 -0.000
H10 0.017 2.198 -0.000
H11 -2.505 1.017 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09701.09391.09703.70733.66612.46421.50272.65283.04304.7633
H21.09701.77881.77274.14624.27123.18812.15232.99093.14375.1459
H31.09391.77881.77894.35023.96562.55402.14293.51784.06625.4296
H41.09701.77271.77894.14574.27233.18972.15242.98943.14095.1453
C53.70734.14624.35024.14571.38312.30132.23671.37242.20561.0795
O63.66614.27123.96564.27231.38311.45722.22232.25633.30332.0956
N72.46423.18812.55403.18972.30131.45721.34272.30823.34123.3001
C81.50272.15232.14292.15242.23672.22231.34271.44442.26443.3100
C92.65282.99093.51782.98941.37242.25632.30821.44441.07892.2597
H103.04303.14374.06623.14092.20563.30333.34122.26441.07892.7851
H114.76335.14595.42965.14531.07952.09563.30013.31002.25972.7851

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 119.896 C1 C8 C9 128.336
H2 C1 H3 108.564 H2 C1 H4 107.791
H2 C1 C8 110.798 H3 C1 H4 108.567
H3 C1 C8 110.234 H4 C1 C8 110.804
C5 O6 N7 108.205 C5 C9 C8 105.103
C5 C9 H10 127.860 O6 C5 C9 109.934
O6 C5 H11 116.091 O6 N7 C8 104.991
N7 C8 C9 111.768 C8 C9 H10 127.037
C9 C5 H11 133.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.686      
2 H 0.222      
3 H 0.240      
4 H 0.221      
5 C -0.100      
6 O -0.216      
7 N -0.059      
8 C 0.225      
9 C -0.377      
10 H 0.264      
11 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.009 3.620 0.000 3.758
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.527 -2.885 0.000
y -2.885 -37.243 -0.000
z 0.000 -0.000 -36.473
Traceless
 xyz
x 7.331 -2.885 0.000
y -2.885 -4.243 -0.000
z 0.000 -0.000 -3.089
Polar
3z2-r2-6.177
x2-y27.716
xy-2.885
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.186 -0.062 0.000
y -0.062 7.340 -0.000
z 0.000 -0.000 4.045


<r2> (average value of r2) Å2
<r2> 140.889
(<r2>)1/2 11.870