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

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-307.723672
Energy at 298.15K 
HF Energy-307.723672
Nuclear repulsion energy244.567775
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 wB97X-D/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' 3187 3047 6.09 59.24 0.68 0.81
2 A' 3140 3002 21.70 70.62 0.69 0.82
3 A' 3074 2939 3.72 120.87 0.00 0.00
4 A' 3071 2936 14.97 128.88 0.05 0.09
5 A' 3060 2926 16.23 144.40 0.00 0.01
6 A' 1842 1760 272.20 3.60 0.36 0.53
7 A' 1529 1462 6.56 1.66 0.74 0.85
8 A' 1506 1440 3.19 10.53 0.75 0.86
9 A' 1477 1412 14.32 7.61 0.69 0.81
10 A' 1443 1379 7.58 1.47 0.66 0.79
11 A' 1415 1353 70.38 0.51 0.74 0.85
12 A' 1399 1337 25.55 0.99 0.64 0.78
13 A' 1302 1245 417.07 0.63 0.48 0.65
14 A' 1150 1100 17.50 6.76 0.12 0.22
15 A' 1101 1052 90.73 2.04 0.68 0.81
16 A' 1023 978 6.40 1.61 0.19 0.32
17 A' 965 923 4.11 1.89 0.17 0.29
18 A' 880 841 8.19 6.73 0.25 0.40
19 A' 649 621 6.49 7.08 0.27 0.43
20 A' 436 417 0.90 0.24 0.66 0.80
21 A' 377 361 9.53 2.70 0.27 0.43
22 A' 197 189 5.25 0.37 0.64 0.78
23 A" 3146 3007 7.10 57.12 0.75 0.86
24 A" 3144 3006 31.66 16.07 0.75 0.86
25 A" 3111 2974 6.03 82.14 0.75 0.86
26 A" 1494 1428 7.04 7.97 0.75 0.86
27 A" 1484 1419 8.37 6.79 0.75 0.86
28 A" 1312 1254 1.35 5.08 0.75 0.86
29 A" 1189 1137 3.94 0.42 0.75 0.86
30 A" 1076 1029 6.55 0.05 0.75 0.86
31 A" 820 784 0.80 0.13 0.75 0.86
32 A" 619 591 4.82 0.72 0.75 0.86
33 A" 266 254 0.97 0.02 0.75 0.86
34 A" 153 147 4.36 0.03 0.75 0.86
35 A" 69 66 0.33 0.18 0.75 0.86
36 A" 40 38 0.48 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26073.1 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 24925.9 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 wB97X-D/cc-pVTZ
ABC
0.28394 0.07021 0.05811

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.302 0.022 0.000
C2 -0.901 -0.521 0.000
O3 0.000 0.470 0.000
O4 -0.607 -1.686 0.000
C5 1.377 0.072 0.000
C6 2.217 1.326 0.000
H7 -3.010 -0.800 0.000
H8 -2.455 0.648 0.878
H9 -2.455 0.648 -0.878
H10 1.567 -0.543 0.880
H11 1.567 -0.543 -0.880
H12 3.274 1.061 0.000
H13 2.014 1.930 -0.884
H14 2.014 1.930 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50252.34522.40643.67984.70321.08501.08921.08924.00834.00835.67184.80044.8004
C21.50251.34021.20112.35493.62462.12672.13412.13412.62092.62094.46513.90983.9098
O32.34521.34022.24031.43382.37633.26692.61392.61392.06342.06343.32672.63922.6392
O42.40641.20112.24032.65164.12922.56073.10403.10402.60942.60944.75504.55234.5523
C53.67982.35491.43382.65161.50904.47313.97413.97411.09021.09022.13872.15302.1530
C64.70323.62462.37634.12921.50905.64264.80224.80222.16582.16581.08971.08931.0893
H71.08502.12673.26692.56074.47315.64261.78201.78204.66804.66806.55345.78515.7851
H81.08922.13412.61393.10403.97414.80221.78201.75674.19564.54895.81094.97204.6492
H91.08922.13412.61393.10403.97414.80221.78201.75674.54894.19565.81094.64924.9720
H104.00832.62092.06342.60941.09022.16584.66804.19564.54891.75912.50193.06992.5128
H114.00832.62092.06342.60941.09022.16584.66804.54894.19561.75912.50192.51283.0699
H125.67184.46513.32674.75502.13871.08976.55345.81095.81092.50192.50191.76731.7673
H134.80043.90982.63924.55232.15301.08935.78514.97204.64923.06992.51281.76731.7679
H144.80043.90982.63924.55232.15301.08935.78514.64924.97202.51283.06991.76731.7679

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 111.046 C1 C2 O4 125.393
C2 C1 H7 109.497 C2 C1 H8 109.828
C2 C1 H9 109.828 C2 O3 C5 116.150
O3 C2 O4 123.562 O3 C5 C6 107.680
O3 C5 H10 108.914 O3 C5 H11 108.914
C5 C6 H12 109.715 C5 C6 H13 110.885
C5 C6 H14 110.885 C6 C5 H10 111.857
C6 C5 H11 111.857 H7 C1 H8 110.089
H7 C1 H9 110.089 H8 C1 H9 107.487
H10 C5 H11 107.555 H12 C6 H13 108.400
H12 C6 H14 108.400 H13 C6 H14 108.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.231      
2 C 0.282      
3 O -0.238      
4 O -0.321      
5 C 0.028      
6 C -0.244      
7 H 0.105      
8 H 0.096      
9 H 0.096      
10 H 0.084      
11 H 0.084      
12 H 0.084      
13 H 0.088      
14 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.273 2.026 0.000 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.350 -1.037 0.000
y -1.037 -42.583 0.000
z 0.000 0.000 -35.356
Traceless
 xyz
x 8.619 -1.037 0.000
y -1.037 -9.729 0.000
z 0.000 0.000 1.111
Polar
3z2-r22.221
x2-y212.232
xy-1.037
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.504 0.531 0.000
y 0.531 8.196 0.000
z 0.000 0.000 6.473


<r2> (average value of r2) Å2
<r2> 199.923
(<r2>)1/2 14.139