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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-245.415899
Energy at 298.15K 
HF Energy-244.619850
Nuclear repulsion energy160.873541
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/daug-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' 3312 3312 0.05      
2 A' 3288 3288 0.10      
3 A' 3270 3270 1.20      
4 A' 1618 1618 11.47      
5 A' 1494 1494 34.42      
6 A' 1403 1403 7.68      
7 A' 1249 1249 6.26      
8 A' 1156 1156 20.97      
9 A' 1115 1115 8.75      
10 A' 1044 1044 5.67      
11 A' 930 930 16.53      
12 A' 912 912 0.41      
13 A' 898 898 22.56      
14 A" 908 908 6.34      
15 A" 876 876 0.35      
16 A" 777 777 59.95      
17 A" 634 634 2.06      
18 A" 595 595 13.08      

Unscaled Zero Point Vibrational Energy (zpe) 12738.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12738.7 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/daug-cc-pVDZ
ABC
0.32300 0.31586 0.15970

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/daug-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 -0.995 0.000
O5 -1.100 0.346 0.000
H6 2.171 0.705 0.000
H7 1.163 -1.915 0.000
H8 -0.183 2.205 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43971.36782.28862.23741.08612.28772.2585
C21.43972.19341.31782.16602.28371.08903.2759
C31.36782.19342.23991.35322.21273.26231.0874
N42.28861.31782.23991.39993.33492.07543.2414
O52.23742.16601.35321.39993.29093.19852.0733
H61.08612.28372.21273.33493.29092.80742.7914
H72.28771.08903.26232.07543.19852.80744.3343
H82.25853.27591.08743.24142.07332.79144.3343

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.113 C1 C2 H7 129.041
C1 C3 O5 110.623 C1 C3 H8 133.488
C2 C1 C3 102.725 C2 C1 H6 128.881
C2 N4 O5 105.648 C3 C1 H6 128.394
C3 O5 N4 108.889 N4 C2 H7 118.846
O5 C3 H8 115.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability