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

using model chemistry: PBEPBE/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 PBEPBE/daug-cc-pVTZ
 hartrees
Energy at 0K-307.453432
Energy at 298.15K 
HF Energy-307.453432
Nuclear repulsion energy242.260580
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 PBEPBE/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' 3098 3098 4.86 59.87 0.67 0.80
2 A' 3048 3048 18.05 76.99 0.68 0.81
3 A' 2988 2988 2.90 179.93 0.01 0.01
4 A' 2976 2976 18.40 12.14 0.47 0.64
5 A' 2975 2975 13.19 318.32 0.00 0.01
6 A' 1733 1733 249.21 9.17 0.19 0.31
7 A' 1462 1462 6.93 0.97 0.72 0.84
8 A' 1443 1443 2.91 7.36 0.74 0.85
9 A' 1418 1418 15.39 6.22 0.56 0.72
10 A' 1367 1367 5.48 2.35 0.54 0.70
11 A' 1346 1346 31.71 0.33 0.57 0.73
12 A' 1332 1332 19.33 1.73 0.41 0.59
13 A' 1210 1210 360.56 1.84 0.50 0.66
14 A' 1100 1100 6.17 6.65 0.10 0.19
15 A' 1031 1031 120.33 2.01 0.72 0.84
16 A' 975 975 12.88 1.02 0.13 0.22
17 A' 922 922 9.93 2.37 0.09 0.16
18 A' 828 828 7.81 6.66 0.21 0.35
19 A' 619 619 3.78 8.25 0.20 0.34
20 A' 417 417 0.83 0.38 0.61 0.75
21 A' 357 357 7.97 4.08 0.21 0.35
22 A' 188 188 5.37 0.44 0.50 0.66
23 A" 3053 3053 28.21 27.96 0.75 0.86
24 A" 3051 3051 2.98 55.02 0.75 0.86
25 A" 3012 3012 7.52 77.95 0.75 0.86
26 A" 1433 1433 6.85 5.20 0.75 0.86
27 A" 1423 1423 8.50 4.18 0.75 0.86
28 A" 1247 1247 0.81 3.66 0.75 0.86
29 A" 1133 1133 3.13 0.57 0.75 0.86
30 A" 1021 1021 4.73 0.10 0.75 0.86
31 A" 782 782 1.17 0.28 0.75 0.86
32 A" 587 587 3.06 0.29 0.75 0.86
33 A" 253 253 0.90 0.02 0.75 0.86
34 A" 151 151 4.30 0.05 0.75 0.86
35 A" 59 59 0.40 0.21 0.75 0.86
36 A" 15i 15i 0.26 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25010.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25010.7 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 PBEPBE/daug-cc-pVTZ
ABC
0.27876 0.06900 0.05709

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.320 0.042 0.000
C2 -0.919 -0.516 0.000
O3 0.000 0.488 0.000
O4 -0.625 -1.697 0.000
C5 1.390 0.063 0.000
C6 2.253 1.306 0.000
H7 -3.040 -0.781 0.000
H8 -2.475 0.675 0.884
H9 -2.475 0.675 -0.884
H10 1.565 -0.564 0.887
H11 1.565 -0.564 -0.887
H12 3.313 1.019 0.000
H13 2.064 1.920 -0.891
H14 2.064 1.920 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50862.36262.42773.70994.74451.09351.09821.09824.03054.03055.71744.85174.8517
C21.50861.36131.21612.37993.65792.13772.15012.15012.63732.63734.50163.95273.9527
O32.36261.36132.27271.45342.39683.29432.63482.63482.08362.08363.35542.66502.6650
O42.42771.21612.27272.67524.15972.58203.13473.13472.62042.62044.78404.59414.5941
C53.70992.37991.45342.67521.51374.50934.01164.01161.09961.09962.14792.16732.1673
C64.74453.65792.39684.15971.51375.68964.85114.85112.18112.18111.09871.09811.0981
H71.09352.13773.29432.58204.50935.68961.79471.79474.69424.69426.60315.84275.8427
H81.09822.15012.63483.13474.01164.85111.79471.76794.22554.58145.86555.03004.7065
H91.09822.15012.63483.13474.01164.85111.79471.76794.58144.22555.86554.70655.0300
H104.03052.63732.08362.62041.09962.18114.69424.22554.58141.77302.51943.09472.5335
H114.03052.63732.08362.62041.09962.18114.69424.58144.22551.77302.51942.53353.0947
H125.71744.50163.35544.78402.14791.09876.60315.86555.86552.51942.51941.77961.7796
H134.85173.95272.66504.59412.16731.09815.84275.03004.70653.09472.53351.77961.7815
H144.85173.95272.66504.59412.16731.09815.84274.70655.03002.53353.09471.77961.7815

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 110.722 C1 C2 O4 125.663
C2 C1 H7 109.447 C2 C1 H8 110.145
C2 C1 H9 110.145 C2 O3 C5 115.415
O3 C2 O4 123.614 O3 C5 C6 107.738
O3 C5 H10 108.603 O3 C5 H11 108.603
C5 C6 H12 109.586 C5 C6 H13 111.159
C5 C6 H14 111.159 C6 C5 H10 112.173
C6 C5 H11 112.173 H7 C1 H8 109.942
H7 C1 H9 109.942 H8 C1 H9 107.194
H10 C5 H11 107.451 H12 C6 H13 108.210
H12 C6 H14 108.210 H13 C6 H14 108.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.273      
2 C 0.943      
3 O -0.252      
4 O -1.290      
5 C -0.148      
6 C -0.689      
7 H 0.132      
8 H 0.177      
9 H 0.177      
10 H 0.308      
11 H 0.308      
12 H 0.228      
13 H 0.188      
14 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.340 2.019 0.000 2.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.977 -1.053 0.000
y -1.053 -43.280 0.000
z 0.000 0.000 -36.090
Traceless
 xyz
x 8.708 -1.053 0.000
y -1.053 -9.746 0.000
z 0.000 0.000 1.038
Polar
3z2-r22.076
x2-y212.303
xy-1.053
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.168 0.661 0.000
y 0.661 9.408 0.000
z 0.000 0.000 7.302


<r2> (average value of r2) Å2
<r2> 203.487
(<r2>)1/2 14.265