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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-245.346670
Energy at 298.15K 
HF Energy-244.591390
Nuclear repulsion energy162.116796
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 CCD/6-31G**
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' 3378 3167 0.06      
2 A' 3353 3144 0.09      
3 A' 3334 3126 2.52      
4 A' 1673 1569 7.24      
5 A' 1537 1441 28.72      
6 A' 1453 1362 7.80      
7 A' 1295 1214 6.25      
8 A' 1210 1134 17.13      
9 A' 1155 1083 7.56      
10 A' 1077 1010 3.00      
11 A' 984 923 37.51      
12 A' 939 880 5.60      
13 A' 934 876 2.35      
14 A" 898 842 7.38      
15 A" 869 815 1.71      
16 A" 792 743 46.59      
17 A" 646 605 0.66      
18 A" 603 566 15.03      

Unscaled Zero Point Vibrational Energy (zpe) 13065.2 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 12249.9 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 CCD/6-31G**
ABC
0.32827 0.32052 0.16217

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.374 0.000
C2 0.619 -0.960 0.000
C3 0.000 1.127 0.000
N4 -0.691 -0.989 0.000
O5 -1.094 0.336 0.000
H6 2.149 0.702 0.000
H7 1.163 -1.890 0.000
H8 -0.188 2.186 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42691.35452.27182.22041.07422.26442.2383
C21.42692.17671.31092.14812.25901.07733.2477
C31.35452.17672.22621.35012.19013.23331.0756
N42.27181.31092.22621.38493.30582.06133.2148
O52.22042.14811.35011.38493.26343.16982.0600
H61.07422.25902.19013.30583.26342.77392.7678
H72.26441.07733.23332.06133.16982.77394.2940
H82.23833.24771.07563.21482.06002.76784.2940

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.084 C1 C2 H7 128.904
C1 C3 O5 110.364 C1 C3 H8 133.841
C2 C1 C3 102.966 C2 C1 H6 128.618
C2 N4 O5 105.624 C3 C1 H6 128.417
C3 O5 N4 108.962 N4 C2 H7 119.012
O5 C3 H8 115.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability