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

using model chemistry: CCSD/6-311+G(3df,2p)

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 CCSD/6-311+G(3df,2p)
 hartrees
Energy at 0K-267.924806
Energy at 298.15K 
HF Energy-266.927868
Nuclear repulsion energy178.368149
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 CCSD/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CCSD/6-311+G(3df,2p)
ABC
0.60212 0.09741 0.08655

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.170 -0.271 0.000
C2 -0.688 -0.567 0.000
O3 0.000 0.697 0.000
C4 1.330 0.624 0.000
O5 1.977 -0.383 0.000
H6 -2.731 -1.206 0.000
H7 -2.450 0.301 0.885
H8 -2.450 0.301 -0.885
H9 -0.382 -1.130 -0.882
H10 -0.382 -1.130 0.882
H11 1.753 1.634 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51182.37623.61274.14841.09061.08981.08982.17112.17114.3613
C21.51181.43892.34312.67072.14112.15442.15441.09031.09033.2867
O32.37621.43891.33182.25263.32882.63492.63492.06482.06481.9878
C43.61272.34311.33181.19754.45463.89563.89562.60552.60551.0947
O54.14842.67072.25261.19754.77924.56584.56582.62672.62672.0298
H61.09062.14113.32884.45464.77921.76971.76972.51032.51035.3081
H71.08982.15442.63493.89564.56581.76971.76963.07332.51484.4975
H81.08982.15442.63493.89564.56581.76971.76962.51483.07334.4975
H92.17111.09032.06482.60552.62672.51033.07332.51481.76373.6028
H102.17111.09032.06482.60552.62672.51032.51483.07331.76373.6028
H114.36133.28671.98781.09472.02985.30814.49754.49753.60283.6028

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 107.255 C1 C2 H9 112.093
C1 C2 H10 112.093 C2 C1 H6 109.663
C2 C1 H7 110.764 C2 C1 H8 110.764
C2 O3 C4 115.429 O3 C2 H9 108.670
O3 C2 H10 108.670 O3 C4 O5 125.813
O3 C4 H11 109.623 O5 C4 H11 124.564
H6 C1 H7 108.514 H6 C1 H8 108.514
H7 C1 H8 108.559 H9 C2 H10 107.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability