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All results from a given calculation for HCOOC2H5 (Ethyl formate)

using model chemistry: MP3=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at MP3=FULL/Def2TZVPP
 hartrees
Energy at 0K-268.026697
Energy at 298.15K 
HF Energy-266.941805
Nuclear repulsion energy178.994991
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=FULL/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/Def2TZVPP
ABC
0.60534 0.09810 0.08714

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.164 -0.278 0.000
C2 -0.682 -0.563 0.000
O3 0.000 0.699 0.000
C4 1.326 0.625 0.000
O5 1.967 -0.380 0.000
H6 -2.715 -1.214 0.000
H7 -2.446 0.289 0.881
H8 -2.446 0.289 -0.881
H9 -0.378 -1.125 -0.877
H10 -0.378 -1.125 0.877
H11 1.750 1.629 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50922.37473.60524.13271.08591.08541.08542.16262.16264.3544
C21.50921.43402.33282.65562.13512.14792.14791.08541.08543.2739
O32.37471.43401.32792.24343.32162.63232.63232.05872.05871.9820
C43.60522.33281.32791.19184.44003.88823.88822.59512.59511.0900
O54.13272.65562.24341.19184.75644.54994.54992.61242.61242.0203
H61.08592.13513.32164.44004.75641.76291.76292.49812.49815.2938
H71.08542.14792.63233.88824.54991.76291.76283.06082.50524.4925
H81.08542.14792.63233.88824.54991.76291.76282.50523.06084.4925
H92.16261.08542.05872.59512.61242.49813.06082.50521.75413.5892
H102.16261.08542.05872.59512.61242.49812.50523.06081.75413.5892
H114.35443.27391.98201.09002.02035.29384.49254.49253.58923.5892

picture of Ethyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.553 C1 C2 H9 111.886
C1 C2 H10 111.886 C2 C1 H6 109.646
C2 C1 H7 110.699 C2 C1 H8 110.699
C2 O3 C4 115.213 O3 C2 H9 108.817
O3 C2 H10 108.817 O3 C4 O5 125.747
O3 C4 H11 109.716 O5 C4 H11 124.537
H6 C1 H7 108.568 H6 C1 H8 108.568
H7 C1 H8 108.601 H9 C2 H10 107.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability