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

using model chemistry: MP4/TZVP

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 MP4/TZVP
 hartrees
Energy at 0K-267.823274
Energy at 298.15K 
HF Energy-266.919087
Nuclear repulsion energy177.099234
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 MP4/TZVP
Rotational Constants (cm-1) from geometry optimized at MP4/TZVP
ABC
0.58702 0.09648 0.08553

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.181 -0.257 0.000
C2 -0.698 -0.560 0.000
O3 0.000 0.713 0.000
C4 1.345 0.617 0.000
O5 1.984 -0.414 0.000
H6 -2.744 -1.194 0.000
H7 -2.457 0.314 0.889
H8 -2.457 0.314 -0.889
H9 -0.394 -1.125 -0.885
H10 -0.394 -1.125 0.885
H11 1.776 1.626 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51422.38733.63294.16831.09331.09191.09192.17472.17474.3824
C21.51421.45212.35762.68582.14232.15642.15641.09281.09283.3014
O32.38731.45211.34862.28213.34192.64302.64302.07782.07781.9968
C43.63292.35761.34861.21294.47213.91623.91622.61572.61571.0975
O54.16832.68582.28211.21294.79204.58744.58742.63552.63552.0508
H61.09332.14233.34194.47214.79201.77441.77442.51182.51185.3277
H71.09192.15642.64303.91624.58741.77441.77713.07772.51514.5197
H81.09192.15642.64303.91624.58741.77441.77712.51513.07774.5197
H92.17471.09282.07782.61572.63552.51183.07772.51511.77063.6139
H102.17471.09282.07782.61572.63552.51182.51513.07771.77063.6139
H114.38243.30141.99681.09752.05085.32774.51974.51973.61393.6139

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 107.163 C1 C2 H9 112.046
C1 C2 H10 112.046 C2 C1 H6 109.428
C2 C1 H7 110.628 C2 C1 H8 110.628
C2 O3 C4 114.606 O3 C2 H9 108.637
O3 C2 H10 108.637 O3 C4 O5 125.902
O3 C4 H11 109.009 O5 C4 H11 125.089
H6 C1 H7 108.589 H6 C1 H8 108.589
H7 C1 H8 108.929 H9 C2 H10 108.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability