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All results from a given calculation for C4H8O2 (Ethyl acetate)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-307.175239
Energy at 298.15K 
HF Energy-305.990175
Nuclear repulsion energy244.378011
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 QCISD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/cc-pVTZ
ABC
0.28298 0.07031 0.05814

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.305 0.034 0.000
C2 -0.904 -0.513 0.000
O3 0.000 0.483 0.000
O4 -0.609 -1.681 0.000
C5 1.373 0.059 0.000
C6 2.228 1.306 0.000
H7 -3.015 -0.787 0.000
H8 -2.455 0.659 0.879
H9 -2.455 0.659 -0.879
H10 1.553 -0.558 0.880
H11 1.553 -0.558 -0.880
H12 3.283 1.031 0.000
H13 2.028 1.911 -0.884
H14 2.028 1.911 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50432.34872.41253.67864.70831.08511.08911.08914.00144.00145.67614.80464.8046
C21.50431.34541.20482.34813.62202.12832.13362.13362.61022.61024.46233.90593.9059
O32.34871.34542.24841.43702.37503.27142.61342.61342.06622.06623.32802.63322.6332
O42.41251.20482.24842.63784.11972.56653.10793.10792.59042.59044.74334.54304.5430
C53.67862.34811.43702.63781.51174.46873.97323.97321.08951.08952.14242.15382.1538
C64.70833.62202.37504.11971.51175.64494.80814.80812.16872.16871.09021.08941.0894
H71.08512.12833.27142.56654.46875.64491.78291.78294.65734.65736.55445.78725.7872
H81.08912.13362.61343.10793.97324.80811.78291.75814.18854.54285.81624.97724.6545
H91.08912.13362.61343.10793.97324.80811.78291.75814.54284.18855.81624.65454.9772
H104.00142.61022.06622.59041.08952.16874.65734.18854.54281.75962.50773.07092.5139
H114.00142.61022.06622.59041.08952.16874.65734.54284.18851.75962.50772.51393.0709
H125.67614.46233.32804.74332.14241.09026.55445.81625.81622.50772.50771.76901.7690
H134.80463.90592.63324.54302.15381.08945.78724.97724.65453.07092.51391.76901.7680
H144.80463.90592.63324.54302.15381.08945.78724.65454.97722.51393.07091.76901.7680

picture of Ethyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 110.892 C1 C2 O4 125.514
C2 C1 H7 109.489 C2 C1 H8 109.677
C2 C1 H9 109.677 C2 O3 C5 115.069
O3 C2 O4 123.594 O3 C5 C6 107.273
O3 C5 H10 108.952 O3 C5 H11 108.952
C5 C6 H12 109.795 C5 C6 H13 110.747
C5 C6 H14 110.747 C6 C5 H10 111.947
C6 C5 H11 111.947 H7 C1 H8 110.172
H7 C1 H9 110.172 H8 C1 H9 107.630
H10 C5 H11 107.706 H12 C6 H13 108.507
H12 C6 H14 108.507 H13 C6 H14 108.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability