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All results from a given calculation for C4H4O (Furan)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-229.360021
Energy at 298.15K 
HF Energy-228.631337
Nuclear repulsion energy160.957718
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.31651 0.30928 0.15643

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.163
C2 0.000 1.090 0.348
C3 0.000 -1.090 0.348
C4 0.000 0.721 -0.961
C5 0.000 -0.721 -0.961
H6 0.000 2.044 0.840
H7 0.000 -2.044 0.840
H8 0.000 1.374 -1.814
H9 0.000 -1.374 -1.814

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36061.36062.24272.24272.06962.06963.27903.2790
C21.36062.17911.35992.23381.07413.17222.18103.2778
C31.36062.17912.23381.35993.17221.07413.27782.1810
C42.24271.35992.23381.44132.23513.29971.07482.2617
C52.24272.23381.35991.44133.29972.23512.26171.0748
H62.06961.07413.17222.23513.29974.08862.73794.3278
H72.06963.17221.07413.29972.23514.08864.32782.7379
H83.27902.18103.27781.07482.26172.73794.32782.7476
H93.27903.27782.18102.26171.07484.32782.73792.7476

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 111.054 O1 C2 H6 115.936
O1 C3 C5 111.054 O1 C3 H7 115.936
C2 O1 C3 106.410 C2 C4 C5 105.741
C2 C4 H8 126.834 C3 C5 C4 105.741
C3 C5 H9 126.834 C4 C2 H6 133.010
C4 C5 H9 127.426 C5 C3 H7 133.010
C5 C4 H8 127.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability