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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CID/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 CID/6-31G
 hartrees
Energy at 0K-244.908838
Energy at 298.15K 
HF Energy-244.462235
Nuclear repulsion energy159.718371
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 CID/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' 3399 3179 0.29      
2 A' 3370 3152 0.33      
3 A' 3356 3138 1.40      
4 A' 1661 1554 8.50      
5 A' 1520 1421 26.82      
6 A' 1437 1344 9.02      
7 A' 1302 1218 8.13      
8 A' 1200 1122 16.60      
9 A' 1105 1033 5.70      
10 A' 1082 1012 16.82      
11 A' 968 905 7.30      
12 A' 945 883 1.30      
13 A' 849 794 31.01      
14 A" 927 867 9.89      
15 A" 915 856 1.22      
16 A" 812 759 67.34      
17 A" 648 606 5.53      
18 A" 601 562 16.02      

Unscaled Zero Point Vibrational Energy (zpe) 13047.8 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 12202.3 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 CID/6-31G
ABC
0.32219 0.30772 0.15739

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.388 0.000
C2 0.634 -0.968 0.000
C3 0.000 1.153 0.000
N4 -0.682 -1.030 0.000
O5 -1.116 0.342 0.000
H6 2.148 0.711 0.000
H7 1.202 -1.883 0.000
H8 -0.186 2.212 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.44091.35822.29442.23901.07592.27242.2449
C21.44092.21361.31742.18642.26091.07733.2840
C31.35822.21362.28691.37972.19353.26551.0752
N42.29441.31742.28691.43923.32282.06833.2795
O52.23902.18641.37971.43923.28553.21372.0883
H61.07592.26092.19353.32283.28552.76122.7756
H72.27241.07733.26552.06833.21372.76124.3241
H82.24493.28401.07523.27952.08832.77564.3241

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.497 C1 C2 H7 128.366
C1 C3 O5 109.721 C1 C3 H8 134.266
C2 C1 C3 104.487 C2 C1 H6 127.274
C2 N4 O5 104.876 C3 C1 H6 128.239
C3 O5 N4 108.419 N4 C2 H7 119.137
O5 C3 H8 116.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability