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

using model chemistry: TPSSh/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-307.763927
Energy at 298.15K 
HF Energy-307.763927
Nuclear repulsion energy242.534477
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/daug-cc-pVDZ
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' 3165 3165 10.13 61.46 0.66 0.80
2 A' 3111 3111 30.96 73.79 0.68 0.81
3 A' 3054 3054 17.78 101.56 0.05 0.10
4 A' 3046 3046 3.79 201.72 0.00 0.01
5 A' 3034 3034 21.78 183.13 0.01 0.01
6 A' 1769 1769 257.73 8.13 0.24 0.38
7 A' 1507 1507 4.88 0.77 0.75 0.86
8 A' 1487 1487 2.17 7.74 0.75 0.86
9 A' 1463 1463 14.29 6.39 0.60 0.75
10 A' 1412 1412 4.20 1.48 0.69 0.82
11 A' 1388 1388 43.85 0.38 0.54 0.70
12 A' 1369 1369 5.44 1.25 0.41 0.58
13 A' 1252 1252 376.20 1.48 0.59 0.74
14 A' 1128 1128 7.08 8.10 0.10 0.18
15 A' 1059 1059 127.01 2.26 0.73 0.84
16 A' 1003 1003 10.00 1.35 0.14 0.25
17 A' 940 940 11.70 2.23 0.13 0.23
18 A' 848 848 9.43 7.85 0.21 0.35
19 A' 628 628 5.53 8.57 0.20 0.34
20 A' 414 414 0.91 0.35 0.60 0.75
21 A' 357 357 8.80 3.64 0.21 0.34
22 A' 186 186 5.52 0.40 0.52 0.68
23 A" 3123 3123 49.09 11.31 0.75 0.86
24 A" 3115 3115 8.27 56.87 0.75 0.86
25 A" 3095 3095 1.89 90.89 0.75 0.86
26 A" 1479 1479 5.36 5.55 0.75 0.86
27 A" 1471 1471 6.83 4.74 0.75 0.86
28 A" 1277 1277 1.07 3.85 0.75 0.86
29 A" 1166 1166 3.01 0.53 0.75 0.86
30 A" 1050 1050 3.57 0.04 0.75 0.86
31 A" 794 794 0.53 0.23 0.75 0.86
32 A" 595 595 4.20 0.36 0.75 0.86
33 A" 253 253 1.04 0.01 0.75 0.86
34 A" 154 154 4.54 0.04 0.75 0.86
35 A" 60 60 0.44 0.21 0.75 0.86
36 A" 27 27 0.27 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25638.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25638.9 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/daug-cc-pVDZ
ABC
0.27948 0.06921 0.05727

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.322 0.042 0.000
C2 -0.918 -0.510 0.000
O3 0.000 0.489 0.000
O4 -0.620 -1.689 0.000
C5 1.388 0.056 0.000
C6 2.252 1.302 0.000
H7 -3.035 -0.786 0.000
H8 -2.475 0.673 0.885
H9 -2.475 0.673 -0.885
H10 1.555 -0.567 0.888
H11 1.555 -0.567 -0.888
H12 3.311 1.010 0.000
H13 2.060 1.913 -0.892
H14 2.060 1.913 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50862.36472.42783.70994.74431.09281.09791.09794.02414.02415.71544.84784.8478
C21.50861.35711.21622.37433.65132.13512.14642.14642.62862.62864.49373.94173.9417
O32.36471.35712.26521.45422.39413.29222.63482.63482.07942.07943.35152.65842.6584
O42.42781.21622.26522.66014.14672.57863.13123.13122.60402.60404.76834.57764.5776
C53.70992.37431.45422.66011.51654.50254.01074.01071.09741.09742.14672.16712.1671
C64.74433.65132.39414.14671.51655.68444.84994.84992.18322.18321.09851.09761.0976
H71.09282.13513.29222.57864.50255.68441.79611.79614.68084.68086.59525.83475.8347
H81.09792.14642.63483.13124.01074.84991.79611.77084.21664.57445.86285.02654.7018
H91.09792.14642.63483.13124.01074.84991.79611.77084.57444.21665.86284.70185.0265
H104.02412.62862.07942.60401.09742.18324.68084.21664.57441.77612.52123.09372.5304
H114.02412.62862.07942.60401.09742.18324.68084.57444.21661.77612.52122.53043.0937
H125.71544.49373.35154.76832.14671.09856.59525.86285.86282.52122.52121.78141.7814
H134.84783.94172.65844.57762.16711.09765.83475.02654.70183.09372.53041.78141.7836
H144.84783.94172.65844.57762.16711.09765.83474.70185.02652.53043.09371.78141.7836

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 111.098 C1 C2 O4 125.651
C2 C1 H7 109.275 C2 C1 H8 109.869
C2 C1 H9 109.869 C2 O3 C5 115.209
O3 C2 O4 123.251 O3 C5 C6 107.374
O3 C5 H10 108.353 O3 C5 H11 108.353
C5 C6 H12 109.308 C5 C6 H13 110.970
C5 C6 H14 110.970 C6 C5 H10 112.287
C6 C5 H11 112.287 H7 C1 H8 110.151
H7 C1 H9 110.151 H8 C1 H9 107.506
H10 C5 H11 108.052 H12 C6 H13 108.421
H12 C6 H14 108.421 H13 C6 H14 108.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.774      
2 C 0.487      
3 O -0.602      
4 O -0.870      
5 C 1.852      
6 C 0.090      
7 H -0.257      
8 H -0.015      
9 H -0.015      
10 H -0.498      
11 H -0.498      
12 H -0.267      
13 H -0.091      
14 H -0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.325 2.022 0.000 2.048
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 10.706 0.622 0.000
y 0.622 9.111 0.000
z 0.000 0.000 7.103


<r2> (average value of r2) Å2
<r2> 202.776
(<r2>)1/2 14.240