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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-307.225298
Energy at 298.15K 
HF Energy-305.990083
Nuclear repulsion energy245.153018
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=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3228 3064 3.52 54.52 0.69 0.81
2 A' 3184 3023 15.35 61.89 0.71 0.83
3 A' 3123 2965 14.71 60.96 0.10 0.18
4 A' 3119 2961 0.65 161.57 0.00 0.01
5 A' 3107 2950 12.47 148.86 0.01 0.01
6 A' 1816 1724 209.74 6.08 0.33 0.50
7 A' 1549 1470 5.45 1.36 0.74 0.85
8 A' 1526 1449 3.15 10.29 0.75 0.86
9 A' 1498 1422 14.28 7.70 0.68 0.81
10 A' 1449 1376 6.33 1.54 0.56 0.72
11 A' 1419 1347 66.67 0.23 0.75 0.85
12 A' 1402 1331 27.14 0.64 0.74 0.85
13 A' 1296 1230 399.54 0.49 0.67 0.80
14 A' 1159 1100 8.23 7.63 0.11 0.20
15 A' 1111 1055 89.80 2.31 0.74 0.85
16 A' 1027 975 10.55 1.69 0.17 0.29
17 A' 972 923 6.95 2.01 0.15 0.25
18 A' 876 832 11.44 7.98 0.21 0.35
19 A' 652 619 6.98 7.06 0.28 0.43
20 A' 434 412 0.64 0.22 0.71 0.83
21 A' 376 357 8.73 2.56 0.28 0.44
22 A' 199 189 4.85 0.37 0.61 0.76
23 A" 3192 3030 23.25 19.40 0.75 0.86
24 A" 3190 3029 2.47 49.19 0.75 0.86
25 A" 3158 2998 6.11 70.57 0.75 0.86
26 A" 1516 1439 6.87 7.48 0.75 0.86
27 A" 1507 1430 8.03 6.54 0.75 0.86
28 A" 1321 1254 1.27 4.65 0.75 0.86
29 A" 1202 1141 3.44 0.49 0.75 0.86
30 A" 1077 1022 4.76 0.04 0.75 0.86
31 A" 826 784 0.63 0.13 0.75 0.86
32 A" 621 590 3.93 0.69 0.75 0.86
33 A" 289 274 0.97 0.03 0.75 0.86
34 A" 160 151 4.39 0.02 0.75 0.86
35 A" 82 78 0.09 0.20 0.75 0.86
36 A" 60 57 0.59 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26358.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 25024.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVTZ
ABC
0.28401 0.07095 0.05861

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.295 0.042 0.000
C2 -0.905 -0.507 0.000
O3 0.000 0.489 0.000
O4 -0.609 -1.677 0.000
C5 1.368 0.054 0.000
C6 2.223 1.289 0.000
H7 -3.004 -0.773 0.000
H8 -2.441 0.665 0.875
H9 -2.441 0.665 -0.875
H10 1.542 -0.561 0.876
H11 1.542 -0.561 -0.876
H12 3.272 1.012 0.000
H13 2.025 1.890 -0.880
H14 2.025 1.890 0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49392.33802.40743.66304.68691.08021.08401.08403.98133.98135.65074.78054.7805
C21.49391.34591.20692.34153.60722.11542.12042.12042.59992.59994.44473.88683.8868
O32.33801.34592.24991.43572.36273.25832.59882.59882.06112.06113.31352.61512.6151
O42.40741.20692.24992.62764.10082.55973.09913.09912.57672.57674.72114.52064.5206
C53.66302.34151.43572.62761.50214.44953.95563.95561.08451.08452.13112.13952.1395
C64.68693.60722.36274.10081.50215.61904.78624.78622.15732.15731.08501.08401.0840
H71.08022.11543.25832.55974.44955.61901.77491.77494.63434.63436.52475.75835.7583
H81.08402.12042.59883.09913.95564.78621.77491.74984.16704.52015.78984.95244.6310
H91.08402.12042.59883.09913.95564.78621.77491.74984.52014.16705.78984.63104.9524
H103.98132.59992.06112.57671.08452.15734.63434.16704.52011.75282.49673.05382.4981
H113.98132.59992.06112.57671.08452.15734.63434.52014.16701.75282.49672.49813.0538
H125.65074.44473.31354.72112.13111.08506.52475.78985.78982.49672.49671.76101.7610
H134.78053.88682.61514.52062.13951.08405.75834.95244.63103.05382.49811.76101.7601
H144.78053.88682.61514.52062.13951.08405.75834.63104.95242.49813.05381.76101.7601

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 110.720 C1 C2 O4 125.758
C2 C1 H7 109.481 C2 C1 H8 109.656
C2 C1 H9 109.656 C2 O3 C5 114.619
O3 C2 O4 123.521 O3 C5 C6 107.051
O3 C5 H10 108.935 O3 C5 H11 108.935
C5 C6 H12 109.879 C5 C6 H13 110.608
C5 C6 H14 110.608 C6 C5 H10 112.017
C6 C5 H11 112.017 H7 C1 H8 110.196
H7 C1 H9 110.196 H8 C1 H9 107.633
H10 C5 H11 107.817 H12 C6 H13 108.563
H12 C6 H14 108.563 H13 C6 H14 108.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability