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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-245.597579
Energy at 298.15K 
HF Energy-244.683992
Nuclear repulsion energy162.612757
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/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CCSD/Def2TZVPP
ABC
0.32998 0.32272 0.16315

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.370 0.000
C2 0.613 -0.961 0.000
C3 0.000 1.120 0.000
N4 -0.690 -0.985 0.000
O5 -1.090 0.341 0.000
H6 2.146 0.699 0.000
H7 1.151 -1.893 0.000
H8 -0.181 2.180 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42581.35212.26462.21481.07312.26372.2318
C21.42582.16951.30322.14332.25941.07663.2396
C31.35212.16952.21521.34002.18743.22601.0750
N42.26461.30322.21521.38443.29822.05273.2054
O52.21482.14331.34001.38443.25593.16412.0516
H61.07312.25942.18743.29823.25592.77692.7588
H72.26371.07663.22602.05273.16412.77694.2857
H82.23183.23961.07503.20542.05162.75884.2857

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.084 C1 C2 H7 129.010
C1 C3 O5 110.717 C1 C3 H8 133.396
C2 C1 C3 102.672 C2 C1 H6 128.865
C2 N4 O5 105.738 C3 C1 H6 128.463
C3 O5 N4 108.789 N4 C2 H7 118.906
O5 C3 H8 115.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability