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

using model chemistry: MP3=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-284.588460
Energy at 298.15K-284.594894
HF Energy-283.647421
Nuclear repulsion energy224.091730
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 MP3=FULL/6-31+G**
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 3377 3146 0.08      
2 A 3349 3120 2.90      
3 A 3245 3023 8.98      
4 A 3221 3001 6.93      
5 A 3143 2928 13.58      
6 A 1715 1598 33.67      
7 A 1590 1481 40.40      
8 A 1549 1443 6.84      
9 A 1527 1422 7.53      
10 A 1473 1372 2.14      
11 A 1420 1323 11.47      
12 A 1316 1226 25.65      
13 A 1257 1171 8.69      
14 A 1091 1017 0.57      
15 A 1085 1011 4.97      
16 A 1068 995 11.70      
17 A 1036 965 2.75      
18 A 979 912 17.61      
19 A 951 886 11.56      
20 A 888 828 16.84      
21 A 777 723 36.44      
22 A 676 629 0.29      
23 A 638 594 1.74      
24 A 612 570 1.89      
25 A 341 318 2.18      
26 A 243 226 2.58      
27 A 109 101 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 19336.3 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 18013.7 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 MP3=FULL/6-31+G**
ABC
0.30941 0.11901 0.08735

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.103 0.017 0.000
H2 2.451 -0.519 -0.881
H3 2.535 1.012 -0.001
H4 2.451 -0.518 0.881
C5 0.617 0.113 -0.000
O6 -0.061 -1.051 0.000
N7 -1.420 -0.790 0.000
C8 -1.536 0.513 -0.000
H9 -2.516 0.957 -0.000
C10 -0.259 1.157 -0.000
H11 -0.041 2.207 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 H9 C10 H11
C11.08811.08541.08811.48972.41313.61423.67274.71382.62243.0652
H21.08811.76871.76222.13092.71443.97904.21145.25593.30533.7972
H31.08541.76871.76872.11833.31594.34604.10135.05102.79692.8391
H41.08811.76221.76872.13092.71483.97924.21135.25573.30503.7965
C51.48972.13092.11832.13091.34722.22792.18933.24411.36162.1945
O62.41312.71443.31592.71481.34721.38382.14943.17142.21633.2582
N73.61423.97904.34603.97922.22791.38381.30752.06212.26663.2992
C83.67274.21144.10134.21132.18932.14941.30751.07601.43062.2600
H94.71385.25595.05105.25573.24413.17142.06211.07602.26622.7730
C102.62243.30532.79693.30501.36162.21632.26661.43062.26621.0730
H113.06523.79722.83913.79652.19453.25823.29922.26002.77301.0730

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 116.469 C1 C5 C10 133.725
H2 C1 H3 108.928 H2 C1 H4 108.148
H2 C1 C5 110.545 H3 C1 H4 108.927
H3 C1 C5 109.703 H4 C1 C5 110.545
C5 O6 N7 109.322 C5 C10 C8 103.244
C5 C10 H11 128.296 O6 C5 C10 109.806
O6 N7 C8 105.965 N7 C8 H9 119.480
N7 C8 C10 111.663 C8 C10 H11 128.461
H9 C8 C10 128.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability