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

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-285.198748
Energy at 298.15K-285.204975
HF Energy-285.198748
Nuclear repulsion energy222.167681
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 B97D3/6-31+G**
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 3234 3179 1.10      
2 A 3195 3140 4.49      
3 A 3099 3046 10.66      
4 A 3061 3008 9.28      
5 A 2997 2946 20.89      
6 A 1600 1573 36.11      
7 A 1476 1450 41.16      
8 A 1463 1438 12.19      
9 A 1451 1426 8.57      
10 A 1389 1365 0.49      
11 A 1335 1312 5.60      
12 A 1227 1205 20.25      
13 A 1184 1164 9.87      
14 A 1038 1020 2.07      
15 A 1035 1017 5.54      
16 A 999 982 6.03      
17 A 969 952 2.97      
18 A 914 898 8.42      
19 A 864 849 7.04      
20 A 834 820 13.97      
21 A 765 752 43.48      
22 A 649 638 0.14      
23 A 625 614 1.82      
24 A 617 606 0.94      
25 A 328 323 2.28      
26 A 237 233 2.50      
27 A 85 84 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18335.3 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 18019.9 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 B97D3/6-31+G**
ABC
0.30443 0.11710 0.08594

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.117 0.016 -0.000
H2 2.476 -0.524 -0.887
H3 2.555 1.020 -0.000
H4 2.476 -0.524 0.887
C5 0.629 0.111 -0.000
O6 -0.062 -1.062 -0.000
N7 -1.452 -0.793 0.000
C8 -1.537 0.527 -0.000
H9 -2.522 0.985 -0.000
C10 -0.259 1.158 0.000
H11 -0.031 2.217 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09891.09561.09891.49082.43103.65923.68944.73922.63643.0758
H21.09891.78271.77452.14492.74164.03564.24195.29563.33143.8195
H31.09561.78271.78272.12943.34414.39764.12125.07692.81712.8496
H41.09891.77451.78272.14492.74184.03564.24195.29573.33123.8192
C51.49082.14492.12942.14491.36172.26882.20563.27031.37342.2074
O62.43102.74163.34412.74181.36171.41602.16823.20062.22953.2797
N73.65924.03564.39764.03562.26881.41601.32222.07482.28693.3282
C83.68944.24194.12124.24192.20562.16821.32221.08651.42542.2636
H94.73925.29565.07695.29573.27033.20062.07481.08652.26982.7790
C102.63643.33142.81713.33121.37342.22952.28691.42542.26981.0829
H113.07583.81952.84963.81922.20743.27973.32822.26362.77901.0829

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 116.996 C1 C5 C10 134.260
H2 C1 H3 108.599 H2 C1 H4 107.744
H2 C1 C5 110.929 H3 C1 H4 108.599
H3 C1 C5 109.960 H4 C1 C5 110.930
C5 O6 N7 110.040 C5 C10 C8 104.185
C5 C10 H11 127.495 O6 C5 C10 108.744
O6 N7 C8 104.653 N7 C8 H9 118.632
N7 C8 C10 112.379 C8 C10 H11 128.320
H9 C8 C10 128.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.674      
2 H 0.186      
3 H 0.171      
4 H 0.186      
5 C 0.045      
6 O -0.018      
7 N -0.247      
8 C -0.170      
9 H 0.159      
10 C 0.215      
11 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.067 2.713 -0.001 3.411
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.684 -3.803 0.001
y -3.803 -36.056 0.000
z 0.001 0.000 -36.548
Traceless
 xyz
x 4.618 -3.803 0.001
y -3.803 -1.940 0.000
z 0.001 0.000 -2.678
Polar
3z2-r2-5.356
x2-y24.372
xy-3.803
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.765 -0.260 0.000
y -0.260 8.527 -0.000
z 0.000 -0.000 5.623


<r2> (average value of r2) Å2
<r2> 137.754
(<r2>)1/2 11.737