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

using model chemistry: wB97X-D/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-285.362402
Energy at 298.15K-285.368754
HF Energy-285.362402
Nuclear repulsion energy225.330893
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-pVTZ
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 3296 3151 0.15      
2 A 3268 3124 3.00      
3 A 3169 3029 7.18      
4 A 3135 2998 6.17      
5 A 3070 2935 11.36      
6 A 1672 1598 42.29      
7 A 1554 1485 51.92      
8 A 1498 1432 8.73      
9 A 1476 1411 8.26      
10 A 1424 1361 0.91      
11 A 1395 1334 9.05      
12 A 1290 1233 26.47      
13 A 1231 1177 9.27      
14 A 1073 1026 3.16      
15 A 1065 1018 3.57      
16 A 1040 994 12.18      
17 A 1026 981 0.86      
18 A 964 922 8.32      
19 A 939 898 16.48      
20 A 915 874 3.97      
21 A 797 762 41.72      
22 A 671 641 0.33      
23 A 662 633 0.16      
24 A 657 628 2.91      
25 A 342 327 2.15      
26 A 251 240 2.59      
27 A 34 33 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 18956.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 18122.6 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-pVTZ
ABC
0.31321 0.12025 0.08832

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.095 0.013 0.000
H2 2.443 -0.525 -0.881
H3 2.535 1.007 -0.000
H4 2.443 -0.524 0.882
C5 0.617 0.112 -0.000
O6 -0.065 -1.042 0.000
N7 -1.425 -0.784 -0.000
C8 -1.520 0.515 0.000
H9 -2.501 0.961 0.000
C10 -0.256 1.144 -0.000
H11 -0.032 2.195 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.08971.08741.08971.48142.40353.60893.64954.69252.60883.0467
H21.08971.76971.76332.12522.70773.97534.19065.23693.29343.7811
H31.08741.76971.76982.11753.31064.34664.08535.03672.79492.8287
H41.08971.76331.76982.12522.70813.97564.19055.23683.29313.7807
C51.48142.12522.11752.12521.33972.22942.17443.23131.35202.1818
O62.40352.70773.31062.70811.33971.38452.13083.15382.19443.2368
N73.60893.97534.34663.97562.22941.38451.30192.04992.25463.2883
C83.64954.19064.08534.19052.17442.13081.30191.07771.41212.2445
H94.69255.23695.03675.23683.23133.15382.04991.07772.25242.7602
C102.60883.29342.79493.29311.35202.19442.25461.41212.25241.0743
H113.04673.78112.82873.78072.18183.23683.28832.24452.76021.0743

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 116.764 C1 C5 C10 134.015
H2 C1 H3 108.761 H2 C1 H4 108.011
H2 C1 C5 110.575 H3 C1 H4 108.761
H3 C1 C5 110.096 H4 C1 C5 110.576
C5 O6 N7 109.832 C5 C10 C8 103.728
C5 C10 H11 127.747 O6 C5 C10 109.221
O6 N7 C8 104.929 N7 C8 H9 118.656
N7 C8 C10 112.290 C8 C10 H11 128.524
H9 C8 C10 129.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 H 0.104      
3 H 0.093      
4 H 0.104      
5 C 0.188      
6 O -0.114      
7 N -0.078      
8 C -0.066      
9 H 0.121      
10 C -0.265      
11 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.953 2.536 -0.001 3.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.216 -3.664 0.001
y -3.664 -35.317 0.000
z 0.001 0.000 -35.897
Traceless
 xyz
x 4.391 -3.664 0.001
y -3.664 -1.760 0.000
z 0.001 0.000 -2.631
Polar
3z2-r2-5.262
x2-y24.101
xy-3.664
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.985 -0.369 0.000
y -0.369 7.883 -0.000
z 0.000 -0.000 5.090


<r2> (average value of r2) Å2
<r2> 134.362
(<r2>)1/2 11.591