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

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-285.279356
Energy at 298.15K-285.285691
HF Energy-285.279356
Nuclear repulsion energy224.468434
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 wB97X-D/cc-pVDZ
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 3314 3157 0.05      
2 A 3292 3136 2.69      
3 A 3184 3033 7.81      
4 A 3153 3003 5.65      
5 A 3079 2933 13.30      
6 A 1677 1598 40.39      
7 A 1564 1490 56.68      
8 A 1502 1430 9.19      
9 A 1481 1411 10.07      
10 A 1429 1361 1.28      
11 A 1398 1332 9.88      
12 A 1295 1234 27.19      
13 A 1233 1175 11.31      
14 A 1070 1020 2.90      
15 A 1070 1019 3.12      
16 A 1041 991 13.59      
17 A 1029 980 0.76      
18 A 967 921 8.71      
19 A 939 895 14.90      
20 A 910 867 5.69      
21 A 792 754 48.66      
22 A 671 639 0.25      
23 A 653 622 0.43      
24 A 651 620 2.06      
25 A 341 325 2.59      
26 A 250 238 2.92      
27 A 35 33 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 19009.0 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 18108.0 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 wB97X-D/cc-pVDZ
ABC
0.31062 0.11938 0.08765

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.103 0.012 0.000
H2 2.452 -0.527 -0.885
H3 2.546 1.010 -0.000
H4 2.452 -0.526 0.885
C5 0.620 0.114 -0.000
O6 -0.065 -1.043 0.000
N7 -1.429 -0.789 -0.000
C8 -1.527 0.515 0.000
H9 -2.513 0.961 0.000
C10 -0.259 1.150 -0.000
H11 -0.036 2.206 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09351.09131.09351.48622.41133.62213.66494.71202.62193.0638
H21.09351.77561.76972.13292.71763.98974.20795.25803.30883.8005
H31.09131.77561.77562.12383.32134.36324.10295.05862.80832.8455
H41.09351.76971.77562.13292.71803.98994.20785.25793.30863.8001
C51.48622.13292.12382.13291.34462.23962.18483.24541.35942.1927
O62.41132.71763.32132.71801.34461.38772.13723.16342.20223.2490
N73.62213.98974.36323.98992.23961.38771.30832.05822.26533.3030
C83.66494.20794.10294.20782.18482.13721.30831.08131.41832.2540
H94.71205.25805.05865.25793.24543.16342.05821.08132.26152.7716
C102.62193.30882.80833.30861.35942.20222.26531.41832.26151.0786
H113.06383.80052.84553.80012.19273.24903.30302.25402.77161.0786

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 116.733 C1 C5 C10 134.209
H2 C1 H3 108.726 H2 C1 H4 108.039
H2 C1 C5 110.629 H3 C1 H4 108.725
H3 C1 C5 110.029 H4 C1 C5 110.630
C5 O6 N7 110.094 C5 C10 C8 103.704
C5 C10 H11 127.776 O6 C5 C10 109.058
O6 N7 C8 104.841 N7 C8 H9 118.621
N7 C8 C10 112.303 C8 C10 H11 128.520
H9 C8 C10 129.076
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.614      
2 H 0.193      
3 H 0.177      
4 H 0.193      
5 C 0.007      
6 O -0.042      
7 N -0.265      
8 C -0.154      
9 H 0.180      
10 C 0.150      
11 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.061 2.774 0.000 3.456
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.355 -3.918 -0.001
y -3.918 -35.865 -0.000
z -0.001 -0.000 -36.402
Traceless
 xyz
x 4.779 -3.918 -0.001
y -3.918 -1.986 -0.000
z -0.001 -0.000 -2.792
Polar
3z2-r2-5.585
x2-y24.510
xy-3.918
xz-0.001
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.938 -0.299 0.000
y -0.299 8.150 0.000
z 0.000 0.000 5.431


<r2> (average value of r2) Å2
<r2> 135.462
(<r2>)1/2 11.639