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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD/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 CCSD/TZVP
 hartrees
Energy at 0K-245.462751
Energy at 298.15K 
HF Energy-244.664247
Nuclear repulsion energy162.236888
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 CCSD/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' 3336 3184 0.09      
2 A' 3312 3161 0.12      
3 A' 3292 3142 1.34      
4 A' 1639 1565 10.57      
5 A' 1503 1434 31.76      
6 A' 1428 1363 9.94      
7 A' 1281 1222 6.45      
8 A' 1190 1135 24.03      
9 A' 1136 1084 11.38      
10 A' 1059 1011 4.37      
11 A' 950 907 20.11      
12 A' 926 884 1.07      
13 A' 922 880 20.17      
14 A" 833 795 19.16      
15 A" 822 784 13.54      
16 A" 744 710 35.29      
17 A" 608 580 0.34      
18 A" 570 544 17.08      

Unscaled Zero Point Vibrational Energy (zpe) 12774.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 12192.3 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 CCSD/TZVP
ABC
0.32879 0.32098 0.16242

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.374 0.000
C2 0.616 -0.960 0.000
C3 0.000 1.123 0.000
N4 -0.689 -0.991 0.000
O5 -1.094 0.340 0.000
H6 2.149 0.702 0.000
H7 1.159 -1.891 0.000
H8 -0.186 2.183 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42721.35212.27022.21941.07482.26522.2348
C21.42722.17191.30532.14782.26051.07803.2436
C31.35212.17192.22361.34512.18963.22931.0763
N42.27021.30532.22361.39153.30432.05493.2138
O52.21942.14781.34511.39153.26263.17042.0544
H61.07482.26052.18963.30433.26262.77602.7650
H72.26521.07803.22932.05493.17042.77604.2906
H82.23483.24361.07633.21382.05442.76504.2906

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.287 C1 C2 H7 128.892
C1 C3 O5 110.740 C1 C3 H8 133.620
C2 C1 C3 102.758 C2 C1 H6 128.698
C2 N4 O5 105.536 C3 C1 H6 128.544
C3 O5 N4 108.678 N4 C2 H7 118.821
O5 C3 H8 115.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability