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

using model chemistry: CCSD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-267.937300
Energy at 298.15K 
HF Energy-266.940843
Nuclear repulsion energy178.312806
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/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CCSD/Def2TZVPP
ABC
0.59988 0.09745 0.08653

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.170 -0.270 0.000
C2 -0.688 -0.564 0.000
O3 0.000 0.702 0.000
C4 1.332 0.622 0.000
O5 1.975 -0.389 0.000
H6 -2.729 -1.206 0.000
H7 -2.450 0.300 0.884
H8 -2.450 0.300 -0.884
H9 -0.383 -1.127 -0.880
H10 -0.383 -1.127 0.880
H11 1.758 1.629 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51102.37813.61404.14711.08981.08901.08902.16892.16894.3632
C21.51101.44062.34232.66892.13962.15272.15271.08881.08883.2849
O32.37811.44061.33412.25633.32982.63582.63582.06562.06561.9874
C43.61402.34231.33411.19854.45343.89743.89742.60292.60291.0931
O54.14712.66892.25631.19854.77464.56524.56522.62292.62292.0294
H61.08982.13963.32984.45344.77461.76861.76862.50722.50725.3075
H71.08902.15272.63583.89744.56521.76861.76863.07012.51244.5008
H81.08902.15272.63583.89744.56521.76861.76862.51243.07014.5008
H92.16891.08882.06562.60292.62292.50723.07012.51241.76063.5990
H102.16891.08882.06562.60292.62292.50722.51243.07011.76063.5990
H114.36323.28491.98741.09312.02945.30754.50084.50083.59903.5990

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 107.330 C1 C2 H9 112.058
C1 C2 H10 112.058 C2 C1 H6 109.650
C2 C1 H7 110.735 C2 C1 H8 110.735
C2 O3 C4 115.108 O3 C2 H9 108.701
O3 C2 H10 108.701 O3 C4 O5 125.887
O3 C4 H11 109.526 O5 C4 H11 124.587
H6 C1 H7 108.535 H6 C1 H8 108.535
H7 C1 H8 108.589 H9 C2 H10 107.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability