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All results from a given calculation for C4H5NO (Isoxazole, 5-methyl-)

using model chemistry: B3LYP/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-285.474398
Energy at 298.15K-285.480826
HF Energy-285.474398
Nuclear repulsion energy224.257316
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/Def2TZVPP
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 3272 3150 0.27      
2 A 3234 3113 2.67      
3 A 3131 3014 7.84      
4 A 3092 2977 6.91      
5 A 3041 2928 12.99      
6 A 1637 1576 37.75      
7 A 1516 1460 48.03      
8 A 1489 1433 11.45      
9 A 1477 1422 7.52      
10 A 1419 1366 0.45      
11 A 1372 1320 6.78      
12 A 1256 1209 25.38      
13 A 1215 1169 8.23      
14 A 1069 1029 2.29      
15 A 1053 1014 4.68      
16 A 1027 988 7.90      
17 A 1000 962 2.12      
18 A 942 906 10.41      
19 A 919 884 4.46      
20 A 890 857 15.84      
21 A 809 779 40.27      
22 A 661 636 0.21      
23 A 656 632 0.82      
24 A 645 621 2.36      
25 A 338 325 2.19      
26 A 253 243 2.23      
27 A 107 103 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 18759.1 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 18057.5 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/Def2TZVPP
ABC
0.31103 0.11900 0.08747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.104 0.014 0.000
H2 2.457 -0.524 -0.881
H3 2.546 1.009 -0.000
H4 2.457 -0.523 0.881
C5 0.623 0.111 -0.000
O6 -0.065 -1.048 0.000
N7 -1.437 -0.785 -0.000
C8 -1.527 0.519 0.000
H9 -2.507 0.970 0.000
C10 -0.257 1.146 -0.000
H11 -0.033 2.197 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09091.08811.09091.48442.41563.63023.66634.70912.61863.0547
H21.09091.76981.76222.13142.72284.00104.21175.25823.30623.7919
H31.08811.76981.76982.12193.32374.36784.10215.05262.80632.8392
H41.09091.76221.76982.13142.72314.00124.21165.25813.30603.7916
C51.48442.13142.12192.13141.34792.24632.18863.24561.35832.1864
O62.41562.72283.32372.72311.34791.39662.14293.16732.20163.2445
N73.63024.00104.36784.00122.24631.39661.30702.05512.26213.2953
C83.66634.21174.10214.21162.18862.14291.30701.07851.41582.2463
H94.70915.25825.05265.25813.24563.16732.05511.07852.25642.7612
C102.61863.30622.80633.30601.35832.20162.26211.41582.25641.0748
H113.05473.79192.83923.79162.18643.24453.29532.24632.76121.0748

picture of Isoxazole, 5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 O6 116.971 C1 C5 C10 134.142
H2 C1 H3 108.624 H2 C1 H4 107.743
H2 C1 C5 110.791 H3 C1 H4 108.624
H3 C1 C5 110.188 H4 C1 C5 110.791
C5 O6 N7 109.854 C5 C10 C8 104.147
C5 C10 H11 127.560 O6 C5 C10 108.886
O6 N7 C8 104.815 N7 C8 H9 118.662
N7 C8 C10 112.297 C8 C10 H11 128.294
H9 C8 C10 129.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.243      
2 H 0.109      
3 H 0.093      
4 H 0.109      
5 C 0.169      
6 O -0.140      
7 N -0.122      
8 C -0.052      
9 H 0.131      
10 C -0.187      
11 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.971 2.617 -0.001 3.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.810 -3.727 0.001
y -3.727 -35.965 0.000
z 0.001 0.000 -36.323
Traceless
 xyz
x 4.335 -3.727 0.001
y -3.727 -1.899 0.000
z 0.001 0.000 -2.436
Polar
3z2-r2-4.872
x2-y24.156
xy-3.727
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.437 -0.340 0.000
y -0.340 8.185 -0.000
z 0.000 -0.000 5.495


<r2> (average value of r2) Å2
<r2> 135.742
(<r2>)1/2 11.651