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

using model chemistry: B2PLYP=FULL/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-307.526534
Energy at 298.15K 
HF Energy-307.170225
Nuclear repulsion energy243.604905
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 B2PLYP=FULL/6-311G**
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' 3190 3190 7.91 64.63 0.69 0.82
2 A' 3140 3140 26.22 73.84 0.72 0.83
3 A' 3080 3080 18.72 64.05 0.12 0.22
4 A' 3078 3078 1.04 165.21 0.01 0.02
5 A' 3065 3065 16.92 126.27 0.01 0.02
6 A' 1807 1807 229.80 3.61 0.41 0.58
7 A' 1539 1539 5.51 1.89 0.74 0.85
8 A' 1516 1516 3.03 15.54 0.75 0.85
9 A' 1488 1488 13.85 10.19 0.70 0.82
10 A' 1446 1446 5.96 2.90 0.66 0.79
11 A' 1417 1417 46.12 0.82 0.75 0.85
12 A' 1403 1403 24.89 1.83 0.75 0.86
13 A' 1277 1277 414.68 0.48 0.42 0.59
14 A' 1150 1150 12.03 6.84 0.15 0.26
15 A' 1085 1085 114.28 2.80 0.74 0.85
16 A' 1021 1021 9.27 1.76 0.24 0.39
17 A' 956 956 7.79 1.97 0.17 0.29
18 A' 870 870 11.22 8.41 0.30 0.46
19 A' 644 644 6.75 8.30 0.33 0.49
20 A' 431 431 0.69 0.33 0.66 0.79
21 A' 372 372 9.34 3.13 0.32 0.48
22 A' 196 196 4.67 0.35 0.65 0.79
23 A" 3151 3151 41.95 17.64 0.75 0.86
24 A" 3147 3147 5.94 56.42 0.75 0.86
25 A" 3120 3120 5.88 92.71 0.75 0.86
26 A" 1501 1501 7.18 10.95 0.75 0.86
27 A" 1492 1492 9.11 10.37 0.75 0.86
28 A" 1311 1311 1.23 7.91 0.75 0.86
29 A" 1195 1195 4.10 0.79 0.75 0.86
30 A" 1073 1073 5.22 0.14 0.75 0.86
31 A" 821 821 0.47 0.16 0.75 0.86
32 A" 606 606 5.27 1.03 0.75 0.86
33 A" 269 269 1.08 0.03 0.75 0.86
34 A" 154 154 4.44 0.02 0.75 0.86
35 A" 66 66 0.18 0.25 0.75 0.86
36 A" 45 45 0.79 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26060.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26060.3 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 B2PLYP=FULL/6-311G**
ABC
0.28081 0.06985 0.05774

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.310 0.031 0.000
C2 -0.908 -0.521 0.000
O3 0.000 0.480 0.000
O4 -0.610 -1.691 0.000
C5 1.384 0.065 0.000
C6 2.227 1.321 0.000
H7 -3.021 -0.791 0.000
H8 -2.460 0.658 0.880
H9 -2.460 0.658 -0.880
H10 1.566 -0.553 0.881
H11 1.566 -0.553 -0.881
H12 3.287 1.056 0.000
H13 2.022 1.924 -0.885
H14 2.022 1.924 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50662.35302.41923.69344.71681.08691.09101.09104.01734.01735.68964.80934.8093
C21.50661.35171.20722.36523.63632.13052.13862.13862.62652.62654.48143.91753.9175
O32.35301.35172.25571.44462.38073.27772.61852.61852.07282.07283.33692.63752.6375
O42.41921.20722.25572.65724.13842.57333.11663.11662.60992.60994.76834.55904.5590
C53.69342.36521.44462.65721.51304.48713.98713.98711.09151.09152.14592.15602.1560
C64.71683.63632.38074.13841.51305.65744.81494.81492.17342.17341.09211.09101.0910
H71.08692.13053.27772.57334.48715.65741.78571.78574.67734.67736.57285.79535.7953
H81.09102.13862.61853.11663.98714.81491.78571.76024.20394.55815.82724.98034.6569
H91.09102.13862.61853.11663.98714.81491.78571.76024.55814.20395.82724.65694.9803
H104.01732.62652.07282.60991.09152.17344.67734.20394.55811.76272.51493.07632.5185
H114.01732.62652.07282.60991.09152.17344.67734.55814.20391.76272.51492.51853.0763
H125.68964.48143.33694.76832.14591.09216.57285.82725.82722.51492.51491.77161.7716
H134.80933.91752.63754.55902.15601.09105.79534.98034.65693.07632.51851.77161.7706
H144.80933.91752.63754.55902.15601.09105.79534.65694.98032.51853.07631.77161.7706

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 110.694 C1 C2 O4 125.753
C2 C1 H7 109.392 C2 C1 H8 109.792
C2 C1 H9 109.792 C2 O3 C5 115.480
O3 C2 O4 123.553 O3 C5 C6 107.188
O3 C5 H10 108.838 O3 C5 H11 108.838
C5 C6 H12 109.861 C5 C6 H13 110.733
C5 C6 H14 110.733 C6 C5 H10 112.103
C6 C5 H11 112.103 H7 C1 H8 110.150
H7 C1 H9 110.150 H8 C1 H9 107.541
H10 C5 H11 107.692 H12 C6 H13 108.487
H12 C6 H14 108.487 H13 C6 H14 108.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability