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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-245.453627
Energy at 298.15K 
HF Energy-244.664852
Nuclear repulsion energy162.608841
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/TZVP
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' 3344 3170 0.09      
2 A' 3320 3147 0.19      
3 A' 3301 3129 1.40      
4 A' 1649 1564 9.18      
5 A' 1512 1433 28.86      
6 A' 1436 1362 8.77      
7 A' 1288 1221 6.67      
8 A' 1205 1142 23.14      
9 A' 1145 1086 10.35      
10 A' 1063 1008 3.57      
11 A' 979 928 40.16      
12 A' 942 893 5.10      
13 A' 934 885 1.80      
14 A" 834 790 15.81      
15 A" 823 781 17.93      
16 A" 751 712 36.88      
17 A" 616 584 0.07      
18 A" 576 546 15.19      

Unscaled Zero Point Vibrational Energy (zpe) 12858.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 12189.9 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/TZVP
ABC
0.33018 0.32255 0.16316

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.373 0.000
C2 0.615 -0.959 0.000
C3 0.000 1.122 0.000
N4 -0.689 -0.984 0.000
O5 -1.090 0.336 0.000
H6 2.146 0.702 0.000
H7 1.155 -1.892 0.000
H8 -0.189 2.181 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42581.35052.26452.21451.07442.26502.2342
C21.42582.17021.30452.14172.25921.07753.2415
C31.35052.17022.21621.34422.18723.22751.0758
N42.26451.30452.21621.38003.29902.05503.2047
O52.21452.14171.34421.38003.25753.16292.0537
H61.07442.25922.18723.29903.25752.77692.7642
H72.26501.07753.22752.05503.16292.77694.2888
H82.23423.24151.07583.20472.05372.76424.2888

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.995 C1 C2 H7 129.064
C1 C3 O5 110.528 C1 C3 H8 133.790
C2 C1 C3 102.798 C2 C1 H6 128.724
C2 N4 O5 105.807 C3 C1 H6 128.478
C3 O5 N4 108.872 N4 C2 H7 118.941
O5 C3 H8 115.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability