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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-267.970600
Energy at 298.15K 
HF Energy-266.928792
Nuclear repulsion energy177.810030
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(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVTZ
ABC
0.59165 0.09729 0.08624

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.173 -0.263 0.000
C2 -0.690 -0.560 0.000
O3 0.000 0.711 0.000
C4 1.338 0.617 0.000
O5 1.974 -0.406 0.000
H6 -2.737 -1.198 0.000
H7 -2.452 0.310 0.886
H8 -2.452 0.310 -0.886
H9 -0.384 -1.125 -0.882
H10 -0.384 -1.125 0.882
H11 1.771 1.624 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51302.38163.61994.15001.09151.09071.09072.17342.17344.3724
C21.51301.44652.34512.66862.14372.15532.15531.09101.09103.2905
O32.38161.44651.34102.26803.33662.63742.63742.07252.07251.9925
C43.61992.34511.34101.20504.46063.90373.90372.60342.60341.0955
O54.15002.66862.26801.20504.77704.56994.56992.61832.61832.0395
H61.09152.14373.33664.46064.77701.77151.77152.51382.51385.3180
H71.09072.15532.63743.90374.56991.77151.77103.07552.51684.5102
H81.09072.15532.63743.90374.56991.77151.77102.51683.07554.5102
H92.17341.09102.07252.60342.61832.51383.07552.51681.76413.6023
H102.17341.09102.07252.60342.61832.51382.51683.07551.76413.6023
H114.37243.29051.99251.09552.03955.31804.51024.51023.60233.6023

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 107.146 C1 C2 H9 112.139
C1 C2 H10 112.139 C2 C1 H6 109.727
C2 C1 H7 110.699 C2 C1 H8 110.699
C2 O3 C4 114.500 O3 C2 H9 108.712
O3 C2 H10 108.712 O3 C4 O5 125.871
O3 C4 H11 109.308 O5 C4 H11 124.821
H6 C1 H7 108.545 H6 C1 H8 108.545
H7 C1 H8 108.567 H9 C2 H10 107.898
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability