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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-283.701153
Energy at 298.15K-283.707944
Nuclear repulsion energy226.839800
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 HF/6-311G**
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 3425 3111 0.30      
2 A 3391 3081 7.32      
3 A 3271 2972 16.52      
4 A 3244 2948 14.56      
5 A 3184 2892 16.38      
6 A 1803 1638 41.23      
7 A 1701 1545 89.57      
8 A 1606 1459 7.51      
9 A 1593 1447 7.71      
10 A 1537 1396 4.38      
11 A 1499 1362 13.80      
12 A 1371 1246 40.84      
13 A 1311 1191 13.42      
14 A 1165 1059 3.59      
15 A 1145 1040 11.53      
16 A 1112 1010 12.71      
17 A 1096 996 0.15      
18 A 1052 956 15.82      
19 A 1039 944 2.85      
20 A 1009 916 23.47      
21 A 893 811 49.14      
22 A 713 648 2.34      
23 A 703 639 0.79      
24 A 700 636 2.09      
25 A 360 327 2.84      
26 A 277 252 3.03      
27 A 133 121 1.00      

Unscaled Zero Point Vibrational Energy (zpe) 20165.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 18320.2 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 HF/6-311G**
ABC
0.31949 0.12105 0.08923

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.091 0.010 0.000
H2 2.430 -0.529 -0.878
H3 2.533 0.998 -0.000
H4 2.430 -0.529 0.878
C5 0.606 0.109 -0.000
O6 -0.071 -1.027 -0.000
N7 -1.406 -0.774 0.000
C8 -1.523 0.499 0.000
H9 -2.501 0.938 -0.000
C10 -0.250 1.144 -0.000
H11 -0.030 2.189 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.08461.08221.08461.48872.39823.58473.64734.68502.60143.0410
H21.08461.76461.75612.12262.69723.94364.17815.21913.27933.7699
H31.08221.76461.76452.12213.29864.31944.08635.03392.78642.8257
H41.08461.75611.76452.12262.69743.94374.17805.21903.27913.7696
C51.48872.12262.12212.12261.32222.19752.16453.21561.34332.1755
O62.39822.69723.29862.69741.32221.35942.10653.12502.17863.2167
N73.58473.94364.31943.94372.19751.35941.27792.03152.23963.2673
C83.64734.17814.08634.17802.16452.10651.27791.07191.42732.2556
H94.68505.21915.03395.21903.21563.12502.03151.07192.26042.7699
C102.60143.27932.78643.27911.34332.17862.23961.42732.26041.0681
H113.04103.76992.82573.76962.17553.21673.26732.25562.76991.0681

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 116.997 C1 C5 C10 133.374
H2 C1 H3 109.051 H2 C1 H4 108.104
H2 C1 C5 110.162 H3 C1 H4 109.049
H3 C1 C5 110.268 H4 C1 C5 110.161
C5 O6 N7 110.051 C5 C10 C8 102.701
C5 C10 H11 128.528 O6 C5 C10 109.629
O6 N7 C8 105.972 N7 C8 H9 119.411
N7 C8 C10 111.647 C8 C10 H11 128.772
H9 C8 C10 128.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.177      
2 H 0.126      
3 H 0.110      
4 H 0.126      
5 C 0.301      
6 O -0.318      
7 N -0.146      
8 C 0.161      
9 H 0.121      
10 C -0.414      
11 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.896 2.836 0.000 3.411
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.155 -3.950 0.000
y -3.950 -36.112 0.001
z 0.000 0.001 -36.361
Traceless
 xyz
x 5.081 -3.950 0.000
y -3.950 -2.353 0.001
z 0.000 0.001 -2.728
Polar
3z2-r2-5.456
x2-y24.956
xy-3.950
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.713 -0.532 0.000
y -0.532 7.205 0.000
z 0.000 0.000 4.316


<r2> (average value of r2) Å2
<r2> 133.505
(<r2>)1/2 11.554