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

using model chemistry: M06-2X/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-311G**
 hartrees
Energy at 0K-307.655030
Energy at 298.15K 
HF Energy-307.655030
Nuclear repulsion energy244.550830
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 M06-2X/6-311G**
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' 3203 3203 3.86 59.64 0.69 0.82
2 A' 3156 3156 17.61 70.09 0.71 0.83
3 A' 3089 3089 1.52 107.88 0.00 0.00
4 A' 3085 3085 13.71 93.55 0.09 0.16
5 A' 3077 3077 12.06 140.98 0.00 0.01
6 A' 1876 1876 281.16 3.66 0.46 0.63
7 A' 1533 1533 6.17 2.00 0.74 0.85
8 A' 1507 1507 3.61 13.93 0.75 0.85
9 A' 1478 1478 14.07 9.02 0.71 0.83
10 A' 1444 1444 9.71 2.41 0.48 0.65
11 A' 1410 1410 100.87 1.13 0.75 0.86
12 A' 1393 1393 33.15 1.26 0.73 0.85
13 A' 1304 1304 415.25 0.40 0.51 0.68
14 A' 1155 1155 29.01 6.75 0.15 0.26
15 A' 1113 1113 72.42 2.83 0.66 0.80
16 A' 1020 1020 8.03 1.49 0.23 0.38
17 A' 973 973 4.71 2.07 0.21 0.35
18 A' 887 887 9.07 6.73 0.32 0.49
19 A' 653 653 9.17 7.58 0.32 0.49
20 A' 434 434 0.81 0.22 0.66 0.80
21 A' 381 381 10.22 2.77 0.31 0.48
22 A' 201 201 4.85 0.37 0.69 0.82
23 A" 3161 3161 5.21 59.26 0.75 0.86
24 A" 3160 3160 24.66 16.37 0.75 0.86
25 A" 3125 3125 7.93 79.63 0.75 0.86
26 A" 1491 1491 8.39 10.10 0.75 0.86
27 A" 1481 1481 10.30 9.14 0.75 0.86
28 A" 1312 1312 1.62 7.83 0.75 0.86
29 A" 1188 1188 4.95 0.54 0.75 0.86
30 A" 1070 1070 7.54 0.17 0.75 0.86
31 A" 816 816 0.71 0.14 0.75 0.86
32 A" 609 609 5.87 0.95 0.75 0.86
33 A" 266 266 1.14 0.03 0.75 0.86
34 A" 154 154 4.73 0.03 0.75 0.86
35 A" 76 76 0.07 0.21 0.75 0.86
36 A" 56 56 0.92 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26167.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26167.6 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 M06-2X/6-311G**
ABC
0.28361 0.07036 0.05821

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.305 0.022 0.000
C2 -0.902 -0.520 0.000
O3 0.000 0.476 0.000
O4 -0.600 -1.680 0.000
C5 1.376 0.066 0.000
C6 2.217 1.322 0.000
H7 -3.010 -0.805 0.000
H8 -2.454 0.648 0.880
H9 -2.454 0.648 -0.880
H10 1.559 -0.553 0.881
H11 1.559 -0.553 -0.881
H12 3.277 1.063 0.000
H13 2.005 1.923 -0.885
H14 2.005 1.923 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50442.34982.40983.68184.70561.08651.09061.09064.00504.00505.67884.79384.7938
C21.50441.34401.19932.35213.62222.12722.13292.13292.61412.61414.46893.89923.8992
O32.34981.34402.23891.43612.37273.27152.61322.61322.06542.06543.32922.62632.6263
O42.40981.19932.23892.63694.11692.56423.10443.10442.59022.59024.74954.53394.5339
C53.68182.35211.43612.63691.51174.47173.97333.97331.09201.09202.14682.15162.1516
C64.70563.62222.37274.11691.51175.64324.80114.80112.17342.17341.09121.09071.0907
H71.08652.12723.27152.56424.47175.64321.78771.78774.66004.66006.55885.77765.7776
H81.09062.13292.61323.10443.97334.80111.78771.76074.18904.54445.81354.96304.6384
H91.09062.13292.61323.10443.97334.80111.78771.76074.54444.18905.81354.63844.9630
H104.00502.61412.06542.59021.09202.17344.66004.18904.54441.76292.51793.07382.5155
H114.00502.61412.06542.59021.09202.17344.66004.54444.18901.76292.51792.51553.0738
H125.67884.46893.32924.74952.14681.09126.55885.81355.81352.51792.51791.77201.7720
H134.79383.89922.62634.53392.15161.09075.77764.96304.63843.07382.51551.77201.7703
H144.79383.89922.62634.53392.15161.09075.77764.63844.96302.51553.07381.77201.7703

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 111.042 C1 C2 O4 125.703
C2 C1 H7 109.317 C2 C1 H8 109.526
C2 C1 H9 109.526 C2 O3 C5 115.529
O3 C2 O4 123.255 O3 C5 C6 107.175
O3 C5 H10 108.804 O3 C5 H11 108.804
C5 C6 H12 110.084 C5 C6 H13 110.491
C5 C6 H14 110.491 C6 C5 H10 112.168
C6 C5 H11 112.168 H7 C1 H8 110.398
H7 C1 H9 110.398 H8 C1 H9 107.652
H10 C5 H11 107.638 H12 C6 H13 108.613
H12 C6 H14 108.613 H13 C6 H14 108.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 C 0.370      
3 O -0.352      
4 O -0.375      
5 C -0.084      
6 C -0.394      
7 H 0.165      
8 H 0.164      
9 H 0.164      
10 H 0.150      
11 H 0.150      
12 H 0.140      
13 H 0.146      
14 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.216 1.883 0.000 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.581 -1.010 0.000
y -1.010 -42.863 0.000
z 0.000 0.000 -35.641
Traceless
 xyz
x 8.671 -1.010 0.000
y -1.010 -9.751 0.000
z 0.000 0.000 1.080
Polar
3z2-r22.161
x2-y212.282
xy-1.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.781 0.471 0.000
y 0.471 7.651 0.000
z 0.000 0.000 5.948


<r2> (average value of r2) Å2
<r2> 199.803
(<r2>)1/2 14.135