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

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-307.837223
Energy at 298.15K 
HF Energy-307.837223
Nuclear repulsion energy243.308848
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 TPSSh/aug-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' 3155 3045 7.94 59.76 0.66 0.79
2 A' 3103 2995 25.50 71.06 0.68 0.81
3 A' 3048 2942 18.25 18.18 0.22 0.36
4 A' 3047 2941 0.11 278.58 0.01 0.02
5 A' 3034 2929 18.46 177.79 0.01 0.01
6 A' 1774 1712 262.56 8.23 0.24 0.39
7 A' 1525 1472 5.60 0.79 0.75 0.86
8 A' 1506 1454 2.50 7.43 0.75 0.86
9 A' 1481 1429 15.62 6.15 0.60 0.75
10 A' 1425 1376 4.37 1.19 0.64 0.78
11 A' 1405 1356 31.35 0.26 0.54 0.70
12 A' 1389 1341 8.89 1.28 0.45 0.62
13 A' 1254 1211 392.72 1.48 0.54 0.70
14 A' 1134 1095 10.22 7.58 0.10 0.19
15 A' 1059 1022 136.01 2.02 0.74 0.85
16 A' 1009 974 5.84 1.63 0.17 0.29
17 A' 939 906 9.25 2.03 0.15 0.26
18 A' 851 822 9.64 7.81 0.20 0.34
19 A' 629 607 5.16 8.31 0.21 0.34
20 A' 417 403 0.89 0.32 0.62 0.76
21 A' 359 346 8.81 3.54 0.21 0.35
22 A' 187 180 5.51 0.41 0.52 0.69
23 A" 3113 3005 40.38 14.35 0.75 0.86
24 A" 3108 3000 5.78 54.06 0.75 0.86
25 A" 3083 2976 3.05 85.56 0.75 0.86
26 A" 1496 1444 5.72 5.28 0.75 0.86
27 A" 1488 1436 7.27 4.34 0.75 0.86
28 A" 1292 1247 1.03 3.56 0.75 0.86
29 A" 1177 1136 3.33 0.54 0.75 0.86
30 A" 1064 1027 4.17 0.06 0.75 0.86
31 A" 802 774 0.62 0.21 0.75 0.86
32 A" 600 580 4.40 0.33 0.75 0.86
33 A" 258 249 0.98 0.01 0.75 0.86
34 A" 153 147 4.53 0.04 0.75 0.86
35 A" 62 60 0.38 0.20 0.75 0.86
36 A" 33 32 0.26 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25729.2 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 24833.9 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 TPSSh/aug-cc-pVTZ
ABC
0.28145 0.06952 0.05754

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.315 0.042 0.000
C2 -0.915 -0.512 0.000
O3 0.000 0.484 0.000
O4 -0.621 -1.685 0.000
C5 1.386 0.057 0.000
C6 2.246 1.302 0.000
H7 -3.028 -0.778 0.000
H8 -2.467 0.670 0.880
H9 -2.467 0.670 -0.880
H10 1.556 -0.562 0.882
H11 1.556 -0.562 -0.882
H12 3.300 1.016 0.000
H13 2.054 1.909 -0.886
H14 2.054 1.909 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50622.35722.41973.70134.73201.08681.09151.09154.01614.01615.69934.83384.8338
C21.50621.35231.20952.36983.64392.13042.14032.14032.62372.62374.48313.93223.9322
O32.35721.35232.25631.45022.39013.28092.62602.62602.07222.07223.34272.65262.6526
O42.41971.20952.25632.65734.13992.57283.11923.11922.60312.60314.76124.56744.5674
C53.70132.36981.45022.65731.51294.49253.99953.99951.09141.09142.14102.15942.1594
C64.73203.64392.39014.13991.51295.66954.83604.83602.17482.17481.09221.09131.0913
H71.08682.13043.28092.57284.49255.66951.78491.78494.67324.67326.57795.81735.8173
H81.09152.14032.62603.11923.99954.83601.78491.75974.20744.56165.84435.00994.6884
H91.09152.14032.62603.11923.99954.83601.78491.75974.56164.20745.84434.68845.0099
H104.01612.62372.07222.60311.09142.17484.67324.20744.56161.76492.51263.07992.5216
H114.01612.62372.07222.60311.09142.17484.67324.56164.20741.76492.51262.52163.0799
H125.69934.48313.34274.76122.14101.09226.57795.84435.84432.51262.51261.77061.7706
H134.83383.93222.65264.56742.15941.09135.81735.00994.68843.07992.52161.77061.7717
H144.83383.93222.65264.56742.15941.09135.81734.68845.00992.52163.07991.77061.7717

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 110.987 C1 C2 O4 125.641
C2 C1 H7 109.422 C2 C1 H8 109.931
C2 C1 H9 109.931 C2 O3 C5 115.432
O3 C2 O4 123.371 O3 C5 C6 107.513
O3 C5 H10 108.410 O3 C5 H11 108.410
C5 C6 H12 109.482 C5 C6 H13 111.001
C5 C6 H14 111.001 C6 C5 H10 112.237
C6 C5 H11 112.237 H7 C1 H8 110.050
H7 C1 H9 110.050 H8 C1 H9 107.436
H10 C5 H11 107.910 H12 C6 H13 108.370
H12 C6 H14 108.370 H13 C6 H14 108.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 C 0.371      
3 O -0.226      
4 O -0.689      
5 C 0.148      
6 C -0.314      
7 H 0.138      
8 H 0.087      
9 H 0.087      
10 H 0.109      
11 H 0.109      
12 H 0.098      
13 H 0.090      
14 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.334 2.023 0.000 2.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.589 0.613 0.000
y 0.613 9.002 0.000
z 0.000 0.000 7.009


<r2> (average value of r2) Å2
<r2> 201.811
(<r2>)1/2 14.206