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All results from a given calculation for C4H4O2 (2-Oxetanone, 4-methylene-)

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 C1 1A
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-304.386836
Energy at 298.15K 
HF Energy-303.492040
Nuclear repulsion energy217.603888
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
0.40674 0.09278 0.07665

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.263 -0.158 -0.000
H2 -2.684 -1.150 -0.000
H3 -2.931 0.688 -0.000
O4 0.044 -0.963 0.000
C5 1.046 -0.013 -0.000
O6 2.220 -0.188 -0.000
C7 0.057 1.159 0.000
H8 0.091 1.779 -0.892
H9 0.091 1.779 0.892
C10 -0.953 0.030 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 O6 C7 H8 H9 C10
C11.07811.07732.44383.31234.48372.66743.17643.17651.3239
H21.07811.85482.73393.89914.99743.58354.13244.13242.0953
H31.07731.85483.40234.03795.22513.02453.33453.33472.0845
O42.44382.73393.40231.38112.31032.12202.88422.88381.4075
C53.31233.89914.03791.38111.18751.53312.21742.21731.9991
O64.48374.99745.22512.31031.18752.54853.03273.03263.1806
C72.66743.58353.02452.12201.53312.54851.08691.08691.5140
H83.17644.13243.33452.88422.21743.03271.08691.78372.2233
H93.17654.13243.33472.88382.21733.03261.08691.78372.2232
C101.32392.09532.08451.40751.99913.18061.51402.22332.2232

picture of 2-Oxetanone, 4-methylene- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C10 O4 126.920 C1 C10 C7 139.987
H2 C1 H3 118.759 H2 C1 C10 121.113
H3 C1 C10 120.128 O4 C5 O6 128.016
O4 C5 C7 93.319 O4 C10 C7 93.093
C5 O4 C10 91.592 C5 C7 H8 114.554
C5 C7 H9 114.547 C5 C7 C10 81.996
O6 C5 C7 138.665 H8 C7 H9 110.283
H8 C7 C10 116.525 H9 C7 C10 116.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability