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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-285.180636
Energy at 298.15K-285.186843
HF Energy-285.180636
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3234 3171 1.79      
2 A 3194 3132 7.60      
3 A 3099 3039 11.48      
4 A 3060 3000 12.33      
5 A 3000 2941 20.22      
6 A 1612 1580 31.61      
7 A 1488 1459 7.58      
8 A 1483 1454 37.48      
9 A 1475 1446 7.05      
10 A 1410 1383 1.06      
11 A 1346 1320 5.17      
12 A 1237 1213 17.24      
13 A 1192 1169 8.48      
14 A 1055 1034 3.75      
15 A 1042 1022 4.34      
16 A 1007 987 6.27      
17 A 976 957 2.58      
18 A 919 901 9.58      
19 A 860 844 5.14      
20 A 841 825 12.76      
21 A 769 754 29.62      
22 A 652 639 0.36      
23 A 628 616 3.19      
24 A 619 607 0.55      
25 A 326 320 1.94      
26 A 239 234 1.89      
27 A 77 76 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 18421.0 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 18059.9 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 B97D3/6-31G*
ABC
0.30446 0.11724 0.08602

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.116 0.015 -0.000
H2 2.477 -0.526 -0.887
H3 2.556 1.020 -0.000
H4 2.477 -0.525 0.887
C5 0.627 0.110 -0.000
O6 -0.063 -1.062 -0.000
N7 -1.452 -0.792 0.000
C8 -1.534 0.528 -0.000
H9 -2.519 0.988 -0.000
C10 -0.258 1.158 0.000
H11 -0.029 2.218 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.10011.09671.10011.49152.43133.65813.68604.73632.63453.0742
H21.10011.78381.77452.14792.74424.03714.24145.29583.33223.8203
H31.09671.78381.78372.13213.34604.39824.11945.07512.81682.8486
H41.10011.77451.78372.14792.74454.03714.24145.29583.33203.8200
C51.49152.14792.13212.14791.36072.26672.20173.26701.37202.2074
O62.43132.74423.34602.74451.36071.41462.16583.19932.22893.2800
N73.65814.03714.39824.03712.26671.41461.32212.07572.28683.3290
C83.68604.24144.11944.24142.20172.16581.32211.08741.42382.2631
H94.73635.29585.07515.29583.26703.19932.07571.08742.26802.7772
C102.63453.33222.81683.33201.37202.22892.28681.42382.26801.0837
H113.07423.82032.84863.82002.20743.28003.32902.26312.77721.0837

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 116.979 C1 C5 C10 134.167
H2 C1 H3 108.533 H2 C1 H4 107.608
H2 C1 C5 111.010 H3 C1 H4 108.533
H3 C1 C5 110.054 H4 C1 C5 111.011
C5 O6 N7 110.025 C5 C10 C8 104.048
C5 C10 H11 127.568 O6 C5 C10 108.854
O6 N7 C8 104.519 N7 C8 H9 118.592
N7 C8 C10 112.553 C8 C10 H11 128.383
H9 C8 C10 128.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.540      
2 H 0.189      
3 H 0.177      
4 H 0.189      
5 C 0.403      
6 O -0.346      
7 N -0.164      
8 C 0.043      
9 H 0.166      
10 C -0.267      
11 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.915 2.524 -0.001 3.168
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.934 -3.469 0.001
y -3.469 -34.955 0.000
z 0.001 0.000 -35.475
Traceless
 xyz
x 4.281 -3.469 0.001
y -3.469 -1.751 0.000
z 0.001 0.000 -2.530
Polar
3z2-r2-5.061
x2-y24.021
xy-3.469
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.718 -0.383 0.000
y -0.383 7.363 -0.000
z 0.000 -0.000 3.917


<r2> (average value of r2) Å2
<r2> 137.067
(<r2>)1/2 11.708