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

using model chemistry: CCD/6-31G

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 CCD/6-31G
 hartrees
Energy at 0K-267.240930
Energy at 298.15K 
HF Energy-266.692272
Nuclear repulsion energy173.826013
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 CCD/6-31G
Rotational Constants (cm-1) from geometry optimized at CCD/6-31G
ABC
0.57794 0.09198 0.08182

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.223 -0.251 0.000
C2 -0.733 -0.597 0.000
O3 0.000 0.700 0.000
C4 1.375 0.642 0.000
O5 2.042 -0.397 0.000
H6 -2.822 -1.176 0.000
H7 -2.481 0.338 0.893
H8 -2.481 0.338 -0.893
H9 -0.433 -1.168 -0.892
H10 -0.433 -1.168 0.892
H11 1.793 1.656 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.52972.41733.70684.26771.10241.10031.10032.20042.20044.4455
C21.52971.48952.44512.78242.16812.17452.17451.10091.10093.3848
O32.41731.48951.37632.31843.38862.66172.66172.11462.11462.0323
C43.70682.44511.37631.23514.57403.96993.96992.70922.70921.0968
O54.26772.78242.31841.23514.92664.66914.66912.74162.74162.0682
H61.10242.16813.38864.57404.92661.79021.79022.55072.55075.4149
H71.10032.17452.66173.96994.66911.79021.78663.10662.54234.5614
H81.10032.17452.66173.96994.66911.79021.78662.54233.10664.5614
H92.20041.10092.11462.70922.74162.55073.10662.54231.78433.7048
H102.20041.10092.11462.70922.74162.55072.54233.10661.78433.7048
H114.44553.38482.03231.09682.06825.41494.56144.56143.70483.7048

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 106.375 C1 C2 H9 112.521
C1 C2 H10 112.521 C2 C1 H6 109.853
C2 C1 H7 110.477 C2 C1 H8 110.477
C2 O3 C4 117.064 O3 C2 H9 108.506
O3 C2 H10 108.506 O3 C4 O5 125.112
O3 C4 H11 110.012 O5 C4 H11 124.876
H6 C1 H7 108.718 H6 C1 H8 108.718
H7 C1 H8 108.551 H9 C2 H10 108.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability