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

using model chemistry: MP2/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVQZ
 hartrees
Energy at 0K-307.236398
Energy at 298.15K 
HF Energy-306.011489
Nuclear repulsion energy244.665669
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 MP2/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2/cc-pVQZ
ABC
0.28284 0.07067 0.05837

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.300 0.041 0.000
C2 -0.906 -0.509 0.000
O3 0.000 0.490 0.000
O4 -0.608 -1.679 0.000
C5 1.371 0.055 0.000
C6 2.226 1.294 0.000
H7 -3.010 -0.777 0.000
H8 -2.447 0.665 0.877
H9 -2.447 0.665 -0.877
H10 1.543 -0.563 0.879
H11 1.543 -0.563 -0.879
H12 3.277 1.015 0.000
H13 2.029 1.896 -0.882
H14 2.029 1.896 0.882

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49842.34392.41313.67184.69711.08261.08631.08633.98863.98865.66224.79244.7924
C21.49841.34831.20812.34623.61422.12072.12622.12622.60282.60284.45243.89603.8960
O32.34391.34832.25241.43872.36723.26562.60562.60562.06412.06413.31912.62192.6219
O42.41311.20812.25242.63124.10752.56613.10613.10612.57782.57784.72794.52954.5295
C53.67182.34621.43872.63121.50564.45953.96533.96531.08771.08772.13432.14542.1454
C64.69713.61422.36724.10751.50565.63104.79674.79672.16472.16471.08721.08631.0863
H71.08262.12073.26562.56614.45955.63101.77891.77894.64204.64206.53775.77215.7721
H81.08632.12622.60563.10613.96534.79671.77891.75374.17494.52915.80204.96484.6428
H91.08632.12622.60563.10613.96534.79671.77891.75374.52914.17495.80204.64284.9648
H103.98862.60282.06412.57781.08772.16474.64204.17494.52911.75782.50393.06342.5066
H113.98862.60282.06412.57781.08772.16474.64204.52914.17491.75782.50392.50663.0634
H125.66224.45243.31914.72792.13431.08726.53775.80205.80202.50392.50391.76431.7643
H134.79243.89602.62194.52952.14541.08635.77214.96484.64283.06342.50661.76431.7642
H144.79243.89602.62194.52952.14541.08635.77214.64284.96482.50663.06341.76431.7642

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 110.735 C1 C2 O4 125.809
C2 C1 H7 109.450 C2 C1 H8 109.661
C2 C1 H9 109.661 C2 O3 C5 114.640
O3 C2 O4 123.456 O3 C5 C6 107.007
O3 C5 H10 108.786 O3 C5 H11 108.786
C5 C6 H12 109.748 C5 C6 H13 110.695
C5 C6 H14 110.695 C6 C5 H10 112.177
C6 C5 H11 112.177 H7 C1 H8 110.203
H7 C1 H9 110.203 H8 C1 H9 107.639
H10 C5 H11 107.819 H12 C6 H13 108.529
H12 C6 H14 108.529 H13 C6 H14 108.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability