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

using model chemistry: QCISD/aug-cc-pVDZ

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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-267.727904
Energy at 298.15K 
HF Energy-266.863035
Nuclear repulsion energy176.498666
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 QCISD/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at QCISD/aug-cc-pVDZ
ABC
0.58383 0.09584 0.08501

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.189 -0.265 0.000
C2 -0.697 -0.566 0.000
O3 0.000 0.713 0.000
C4 1.346 0.624 0.000
O5 1.990 -0.405 0.000
H6 -2.754 -1.213 0.000
H7 -2.471 0.312 0.896
H8 -2.471 0.312 -0.896
H9 -0.386 -1.134 -0.893
H10 -0.386 -1.134 0.893
H11 1.784 1.639 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.52212.39733.64514.18041.10351.10251.10252.19062.19064.4054
C21.52211.45682.36452.69092.15652.17312.17311.10231.10233.3193
O32.39731.45681.34942.28213.36052.65892.65892.08742.08742.0100
C43.64512.36451.34941.21334.49293.93363.93362.62482.62481.1055
O54.18042.69092.28211.21334.81164.60574.60572.64062.64062.0545
H61.10352.15653.36054.49294.81161.79091.79092.53132.53135.3597
H71.10252.17312.65893.93364.60571.79091.79203.10392.53674.5463
H81.10252.17312.65893.93364.60571.79091.79202.53673.10394.5463
H92.19061.10232.08742.62482.64062.53133.10392.53671.78533.6328
H102.19061.10232.08742.62482.64062.53132.53673.10391.78533.6328
H114.40543.31932.01001.10552.05455.35974.54634.54633.63283.6328

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 107.153 C1 C2 H9 112.189
C1 C2 H10 112.189 C2 C1 H6 109.405
C2 C1 H7 110.773 C2 C1 H8 110.773
C2 O3 C4 114.776 O3 C2 H9 108.517
O3 C2 H10 108.517 O3 C4 O5 125.792
O3 C4 H11 109.522 O5 C4 H11 124.686
H6 C1 H7 108.555 H6 C1 H8 108.555
H7 C1 H8 108.719 H9 C2 H10 108.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability