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

using model chemistry: HF/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 HF/cc-pVDZ
 hartrees
Energy at 0K-283.656767
Energy at 298.15K-283.663545
Nuclear repulsion energy226.382730
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/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 3441 3124 0.21      
2 A 3408 3094 6.18      
3 A 3299 2996 12.68      
4 A 3272 2971 10.69      
5 A 3199 2905 17.49      
6 A 1811 1645 42.35      
7 A 1713 1555 88.23      
8 A 1587 1441 6.05      
9 A 1572 1427 7.34      
10 A 1523 1383 6.22      
11 A 1496 1358 15.25      
12 A 1371 1245 42.30      
13 A 1307 1187 10.50      
14 A 1157 1051 4.53      
15 A 1138 1033 10.73      
16 A 1110 1008 12.64      
17 A 1093 992 0.72      
18 A 1044 948 13.07      
19 A 1034 939 2.64      
20 A 1002 910 25.22      
21 A 878 797 43.48      
22 A 713 648 2.76      
23 A 706 641 0.77      
24 A 699 635 2.12      
25 A 358 325 2.72      
26 A 278 252 2.92      
27 A 133 121 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 20169.8 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 18314.1 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/cc-pVDZ
ABC
0.31772 0.12076 0.08895

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.093 0.010 0.000
H2 2.435 -0.532 -0.882
H3 2.536 1.004 -0.000
H4 2.435 -0.531 0.883
C5 0.608 0.108 -0.000
O6 -0.071 -1.029 -0.000
N7 -1.408 -0.777 0.000
C8 -1.525 0.500 0.000
H9 -2.510 0.939 0.000
C10 -0.251 1.147 -0.000
H11 -0.028 2.199 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.09071.08811.09071.48862.40023.58803.65064.69552.60463.0476
H21.09071.77431.76442.12792.70253.95034.18625.23423.28813.7822
H31.08811.77431.77432.12663.30574.32714.09195.04612.79012.8285
H41.09071.76441.77432.12792.70283.95044.18605.23403.28783.7817
C51.48862.12792.12662.12791.32362.20082.16803.22641.34782.1857
O62.40022.70253.30572.70281.32361.36062.10983.13432.18353.2283
N73.58803.95034.32713.95042.20081.36061.28182.03962.24513.2802
C83.65064.18624.09194.18602.16802.10981.28181.07871.42932.2647
H94.69555.23425.04615.23403.22643.13432.03961.07872.26882.7833
C102.60463.28812.79013.28781.34782.18352.24511.42932.26881.0752
H113.04763.78222.82853.78172.18573.22833.28022.26472.78331.0752

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 117.069 C1 C5 C10 133.291
H2 C1 H3 109.050 H2 C1 H4 107.973
H2 C1 C5 110.224 H3 C1 H4 109.048
H3 C1 C5 110.275 H4 C1 C5 110.223
C5 O6 N7 110.141 C5 C10 C8 102.602
C5 C10 H11 128.507 O6 C5 C10 109.640
O6 N7 C8 105.923 N7 C8 H9 119.304
N7 C8 C10 111.694 C8 C10 H11 128.890
H9 C8 C10 129.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.049 -0.399    
2 H 0.068 0.119    
3 H 0.050 0.130    
4 H 0.068 0.119    
5 C 0.186 0.497    
6 O -0.290 -0.127    
7 N -0.116 -0.434    
8 C 0.176 0.384    
9 H 0.048 0.064    
10 C -0.266 -0.542    
11 H 0.029 0.188    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.862 2.742 0.000 3.314
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.089 -3.855 0.000
y -3.855 -35.982 0.001
z 0.000 0.001 -36.323
Traceless
 xyz
x 5.064 -3.855 0.000
y -3.855 -2.276 0.001
z 0.000 0.001 -2.788
Polar
3z2-r2-5.575
x2-y24.894
xy-3.855
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.701 -0.557 0.000
y -0.557 7.074 0.000
z 0.000 0.000 4.025


<r2> (average value of r2) Å2
<r2> 133.856
(<r2>)1/2 11.570