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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-245.411759
Energy at 298.15K 
HF Energy-244.618309
Nuclear repulsion energy160.845775
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/aug-cc-pVDZ
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' 3314 3193 0.04      
2 A' 3290 3170 0.11      
3 A' 3272 3152 1.20      
4 A' 1618 1559 11.35      
5 A' 1496 1441 34.35      
6 A' 1403 1351 7.95      
7 A' 1248 1202 5.70      
8 A' 1156 1114 21.41      
9 A' 1114 1073 8.56      
10 A' 1043 1005 5.65      
11 A' 930 896 16.65      
12 A' 911 877 0.78      
13 A' 897 865 22.33      
14 A" 892 859 8.64      
15 A" 864 832 1.83      
16 A" 768 740 56.25      
17 A" 633 609 1.96      
18 A" 594 572 14.13      

Unscaled Zero Point Vibrational Energy (zpe) 12720.7 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 12255.1 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/aug-cc-pVDZ
ABC
0.32292 0.31576 0.15965

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.137 0.373 0.000
C2 0.620 -0.971 0.000
C3 0.000 1.133 0.000
N4 -0.698 -0.996 0.000
O5 -1.101 0.345 0.000
H6 2.172 0.705 0.000
H7 1.163 -1.915 0.000
H8 -0.184 2.206 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43951.36782.28862.23791.08702.28842.2595
C21.43952.19351.31772.16602.28421.09003.2768
C31.36782.19352.24041.35422.21343.26331.0883
N42.28861.31772.24041.39983.33562.07593.2426
O52.23792.16601.35421.39983.29243.19942.0748
H61.08702.28422.21343.33563.29242.80822.7929
H72.28841.09003.26332.07593.19942.80824.3362
H82.25953.27681.08833.24262.07482.79294.3362

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.134 C1 C2 H7 129.041
C1 C3 O5 110.601 C1 C3 H8 133.517
C2 C1 C3 102.738 C2 C1 H6 128.868
C2 N4 O5 105.659 C3 C1 H6 128.394
C3 O5 N4 108.868 N4 C2 H7 118.825
O5 C3 H8 115.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability