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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-307.646815
Energy at 298.15K 
HF Energy-307.646815
Nuclear repulsion energy244.541198
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' 3209 3209 5.71 59.93 0.69 0.82
2 A' 3161 3161 21.56 69.69 0.70 0.83
3 A' 3097 3097 13.17 8.70 0.29 0.45
4 A' 3097 3097 4.20 185.77 0.04 0.07
5 A' 3085 3085 14.33 124.89 0.01 0.01
6 A' 1878 1878 280.51 3.62 0.45 0.62
7 A' 1545 1545 6.61 1.51 0.74 0.85
8 A' 1521 1521 3.47 16.00 0.75 0.85
9 A' 1495 1495 15.27 9.89 0.71 0.83
10 A' 1454 1454 7.81 2.97 0.50 0.66
11 A' 1421 1421 93.85 1.20 0.75 0.85
12 A' 1405 1405 28.96 1.64 0.73 0.84
13 A' 1308 1308 424.32 0.41 0.51 0.68
14 A' 1161 1161 30.32 6.58 0.15 0.26
15 A' 1115 1115 73.83 2.92 0.69 0.81
16 A' 1026 1026 8.28 1.50 0.23 0.37
17 A' 975 975 4.99 2.11 0.23 0.37
18 A' 890 890 9.43 6.99 0.34 0.50
19 A' 653 653 8.96 7.65 0.33 0.50
20 A' 434 434 0.79 0.24 0.67 0.80
21 A' 381 381 10.13 2.77 0.31 0.48
22 A' 201 201 4.81 0.35 0.69 0.82
23 A" 3167 3167 35.58 21.96 0.75 0.86
24 A" 3165 3165 3.07 50.49 0.75 0.86
25 A" 3135 3135 7.27 84.12 0.75 0.86
26 A" 1509 1509 8.70 11.45 0.75 0.86
27 A" 1496 1496 10.53 10.28 0.75 0.86
28 A" 1323 1323 1.43 9.00 0.75 0.86
29 A" 1195 1195 4.92 0.65 0.75 0.86
30 A" 1077 1077 7.46 0.25 0.75 0.86
31 A" 818 818 0.55 0.18 0.75 0.86
32 A" 611 611 6.15 1.08 0.75 0.86
33 A" 268 268 1.09 0.03 0.75 0.86
34 A" 154 154 4.71 0.02 0.75 0.86
35 A" 77 77 0.14 0.24 0.75 0.86
36 A" 47 47 0.80 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26274.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26274.2 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 M06-2X/6-311G*
ABC
0.28346 0.07036 0.05820

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 0.019 0.000
C2 -0.901 -0.522 0.000
O3 0.000 0.476 0.000
O4 -0.598 -1.682 0.000
C5 1.376 0.068 0.000
C6 2.215 1.325 0.000
H7 -3.011 -0.807 0.000
H8 -2.459 0.646 0.880
H9 -2.459 0.646 -0.880
H10 1.559 -0.551 0.881
H11 1.559 -0.551 -0.881
H12 3.276 1.070 0.000
H13 2.004 1.927 -0.885
H14 2.004 1.927 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50492.34982.41013.68114.70441.08661.09081.09084.00424.00425.67914.79444.7944
C21.50491.34411.19912.35163.62152.12942.13672.13672.61302.61304.46993.90063.9006
O32.34981.34412.23931.43522.37183.27282.61722.61722.06452.06453.32952.62732.6273
O42.41011.19912.23932.63754.11712.56693.10743.10742.58992.58994.75204.53604.5360
C53.68112.35161.43522.63751.51134.47303.97683.97681.09201.09202.14852.15282.1528
C64.70443.62152.37184.11711.51135.64364.80414.80412.17362.17361.09131.09081.0908
H71.08662.12943.27282.56694.47305.64361.78541.78544.66124.66126.56125.77955.7795
H81.09082.13672.61723.10743.97684.80411.78541.75914.19284.54745.81774.96694.6431
H91.09082.13672.61723.10743.97684.80411.78541.75914.54744.19285.81774.64314.9669
H104.00422.61302.06452.58991.09202.17364.66124.19284.54741.76182.52043.07512.5178
H114.00422.61302.06452.58991.09202.17364.66124.54744.19281.76182.52042.51783.0751
H125.67914.46993.32954.75202.14851.09136.56125.81775.81772.52042.52041.77071.7707
H134.79443.90062.62734.53602.15281.09085.77954.96694.64313.07512.51781.77071.7690
H144.79443.90062.62734.53602.15281.09085.77954.64314.96692.51783.07511.77071.7690

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 111.001 C1 C2 O4 125.700
C2 C1 H7 109.444 C2 C1 H8 109.777
C2 C1 H9 109.777 C2 O3 C5 115.538
O3 C2 O4 123.299 O3 C5 C6 107.183
O3 C5 H10 108.797 O3 C5 H11 108.797
C5 C6 H12 110.241 C5 C6 H13 110.609
C5 C6 H14 110.609 C6 C5 H10 112.217
C6 C5 H11 112.217 H7 C1 H8 110.167
H7 C1 H9 110.167 H8 C1 H9 107.485
H10 C5 H11 107.546 H12 C6 H13 108.475
H12 C6 H14 108.475 H13 C6 H14 108.361
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 -0.740      
2 C 0.447      
3 O -0.335      
4 O -0.375      
5 C -0.258      
6 C -0.683      
7 H 0.258      
8 H 0.256      
9 H 0.256      
10 H 0.235      
11 H 0.235      
12 H 0.231      
13 H 0.235      
14 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.226 1.877 0.000 1.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.718 -1.008 0.000
y -1.008 -42.978 0.000
z 0.000 0.000 -35.698
Traceless
 xyz
x 8.620 -1.008 0.000
y -1.008 -9.770 0.000
z 0.000 0.000 1.150
Polar
3z2-r22.299
x2-y212.260
xy-1.008
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.629 0.450 0.000
y 0.450 7.579 0.000
z 0.000 0.000 5.877


<r2> (average value of r2) Å2
<r2> 199.917
(<r2>)1/2 14.139