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

using model chemistry: TPSSh/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-307.837658
Energy at 298.15K 
HF Energy-307.837658
Nuclear repulsion energy243.311075
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-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 3155 7.93 59.69 0.66 0.79
2 A' 3103 3103 25.47 70.81 0.69 0.81
3 A' 3048 3048 18.25 19.05 0.21 0.35
4 A' 3047 3047 0.10 279.25 0.01 0.02
5 A' 3034 3034 18.47 177.01 0.01 0.01
6 A' 1774 1774 262.07 8.23 0.24 0.38
7 A' 1525 1525 5.58 0.80 0.75 0.85
8 A' 1507 1507 2.53 7.43 0.75 0.86
9 A' 1481 1481 15.57 6.14 0.60 0.75
10 A' 1426 1426 4.38 1.19 0.63 0.77
11 A' 1405 1405 31.25 0.26 0.54 0.70
12 A' 1390 1390 8.79 1.28 0.46 0.63
13 A' 1254 1254 392.54 1.50 0.54 0.70
14 A' 1134 1134 10.18 7.58 0.10 0.19
15 A' 1059 1059 136.23 2.02 0.74 0.85
16 A' 1009 1009 5.83 1.63 0.18 0.30
17 A' 939 939 9.27 2.03 0.15 0.26
18 A' 851 851 9.65 7.81 0.21 0.34
19 A' 629 629 5.15 8.34 0.20 0.34
20 A' 417 417 0.88 0.31 0.62 0.77
21 A' 359 359 8.80 3.54 0.21 0.35
22 A' 187 187 5.49 0.41 0.52 0.68
23 A" 3113 3113 40.23 14.60 0.75 0.86
24 A" 3108 3108 5.75 53.89 0.75 0.86
25 A" 3083 3083 3.13 85.18 0.75 0.86
26 A" 1497 1497 5.73 5.26 0.75 0.86
27 A" 1488 1488 7.27 4.34 0.75 0.86
28 A" 1292 1292 1.03 3.56 0.75 0.86
29 A" 1177 1177 3.30 0.53 0.75 0.86
30 A" 1063 1063 4.13 0.06 0.75 0.86
31 A" 802 802 0.62 0.22 0.75 0.86
32 A" 601 601 4.37 0.33 0.75 0.86
33 A" 258 258 0.98 0.01 0.75 0.86
34 A" 153 153 4.56 0.04 0.75 0.86
35 A" 62 62 0.38 0.19 0.75 0.86
36 A" 32 32 0.24 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25729.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25729.2 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-pVTZ
ABC
0.28143 0.06953 0.05755

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.315 0.043 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 1.301 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 -0.563 0.882
H11 1.556 -0.563 -0.882
H12 3.300 1.015 0.000
H13 2.055 1.909 -0.886
H14 2.055 1.909 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50632.35722.41983.70134.73191.08681.09151.09154.01624.01625.69904.83394.8339
C21.50631.35231.20952.36983.64372.13032.14042.14042.62382.62384.48273.93223.9322
O32.35721.35232.25631.45032.38993.28082.62612.62612.07242.07243.34242.65262.6526
O42.41981.20952.25632.65704.13952.57283.11933.11932.60292.60294.76054.56724.5672
C53.70132.36981.45032.65701.51294.49243.99973.99971.09141.09142.14072.15952.1595
C64.73193.64372.38994.13951.51295.66934.83604.83602.17482.17481.09221.09131.0913
H71.08682.13033.28082.57284.49245.66931.78491.78494.67314.67316.57745.81735.8173
H81.09152.14042.62613.11933.99974.83601.78491.75984.20764.56185.84425.01004.6885
H91.09152.14042.62613.11933.99974.83601.78491.75984.56184.20765.84424.68855.0100
H104.01622.62382.07242.60291.09142.17484.67314.20764.56181.76492.51223.07992.5216
H114.01622.62382.07242.60291.09142.17484.67314.56184.20761.76492.51222.52163.0799
H125.69904.48273.34244.76052.14071.09226.57745.84425.84422.51222.51221.77061.7706
H134.83393.93222.65264.56722.15951.09135.81735.01004.68853.07992.52161.77061.7718
H144.83393.93222.65264.56722.15951.09135.81734.68855.01002.52163.07991.77061.7718

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 110.981 C1 C2 O4 125.650
C2 C1 H7 109.413 C2 C1 H8 109.933
C2 C1 H9 109.933 C2 O3 C5 115.418
O3 C2 O4 123.369 O3 C5 C6 107.498
O3 C5 H10 108.418 O3 C5 H11 108.418
C5 C6 H12 109.457 C5 C6 H13 111.010
C5 C6 H14 111.010 C6 C5 H10 112.236
C6 C5 H11 112.236 H7 C1 H8 110.048
H7 C1 H9 110.048 H8 C1 H9 107.444
H10 C5 H11 107.911 H12 C6 H13 108.369
H12 C6 H14 108.369 H13 C6 H14 108.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.176      
2 C 1.008      
3 O -0.097      
4 O -1.558      
5 C -0.236      
6 C -0.108      
7 H 0.203      
8 H -0.027      
9 H -0.027      
10 H 0.189      
11 H 0.189      
12 H 0.097      
13 H 0.095      
14 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.335 2.020 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 10.594 0.613 0.000
y 0.613 9.003 0.000
z 0.000 0.000 7.019


<r2> (average value of r2) Å2
<r2> 201.800
(<r2>)1/2 14.206