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

using model chemistry: MP3=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-267.996328
Energy at 298.15K 
HF Energy-266.931203
Nuclear repulsion energy179.325274
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/cc-pVTZ
ABC
0.60727 0.09851 0.08750

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.159 -0.274 0.000
C2 -0.682 -0.561 0.000
O3 0.000 0.697 0.000
C4 1.323 0.622 0.000
O5 1.964 -0.382 0.000
H6 -2.714 -1.206 0.000
H7 -2.438 0.294 0.880
H8 -2.438 0.294 -0.880
H9 -0.382 -1.123 -0.876
H10 -0.382 -1.123 0.876
H11 1.748 1.623 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50502.36753.59604.12441.08451.08401.08402.15612.15614.3434
C21.50501.43062.32792.65152.13212.14262.14261.08351.08353.2667
O32.36751.43061.32562.24103.31452.62342.62342.05602.05601.9781
C43.59602.32791.32561.19114.43173.87723.87722.59232.59231.0873
O54.12442.65152.24101.19114.74954.53994.53992.61082.61082.0169
H61.08452.13213.31454.43174.74951.76081.76082.49272.49275.2831
H71.08402.14262.62343.87724.53991.76081.75993.05332.49814.4795
H81.08402.14262.62343.87724.53991.76081.75992.49813.05334.4795
H92.15611.08352.05602.59232.61082.49273.05332.49811.75163.5839
H102.15611.08352.05602.59232.61082.49272.49813.05331.75163.5839
H114.34343.26671.97811.08732.01695.28314.47954.47953.58393.5839

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 107.478 C1 C2 H9 111.774
C1 C2 H10 111.774 C2 C1 H6 109.779
C2 C1 H7 110.651 C2 C1 H8 110.651
C2 O3 C4 115.207 O3 C2 H9 108.945
O3 C2 H10 108.945 O3 C4 O5 125.773
O3 C4 H11 109.738 O5 C4 H11 124.489
H6 C1 H7 108.580 H6 C1 H8 108.580
H7 C1 H8 108.540 H9 C2 H10 107.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability