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

using model chemistry: M06-2X/STO-3G

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/STO-3G
 hartrees
Energy at 0K-303.709654
Energy at 298.15K 
HF Energy-303.709654
Nuclear repulsion energy239.280088
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/STO-3G
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' 3573 3573 1.20 30.24 0.74 0.85
2 A' 3565 3565 0.02 32.77 0.73 0.85
3 A' 3394 3394 0.04 40.18 0.01 0.02
4 A' 3388 3388 2.90 40.74 0.00 0.00
5 A' 3364 3364 2.61 31.15 0.13 0.23
6 A' 1967 1967 82.06 2.40 0.40 0.57
7 A' 1701 1701 4.17 4.12 0.75 0.85
8 A' 1676 1676 3.74 21.77 0.73 0.84
9 A' 1670 1670 7.57 16.09 0.75 0.86
10 A' 1588 1588 2.32 6.52 0.68 0.81
11 A' 1551 1551 10.04 4.46 0.68 0.81
12 A' 1509 1509 10.87 1.48 0.75 0.86
13 A' 1373 1373 269.58 1.30 0.58 0.74
14 A' 1255 1255 8.54 5.12 0.21 0.34
15 A' 1187 1187 1.92 5.38 0.69 0.81
16 A' 1083 1083 6.58 1.46 0.30 0.47
17 A' 1009 1009 2.88 3.21 0.74 0.85
18 A' 930 930 3.24 7.12 0.21 0.35
19 A' 630 630 8.73 7.39 0.37 0.54
20 A' 411 411 0.28 0.24 0.73 0.85
21 A' 367 367 6.01 2.43 0.40 0.57
22 A' 194 194 2.54 0.16 0.61 0.76
23 A" 3568 3568 0.01 21.35 0.75 0.86
24 A" 3552 3552 1.08 28.22 0.75 0.86
25 A" 3464 3464 2.50 25.08 0.75 0.86
26 A" 1684 1684 3.18 17.95 0.75 0.86
27 A" 1667 1667 4.73 16.87 0.75 0.86
28 A" 1376 1376 0.02 13.40 0.75 0.86
29 A" 1244 1244 6.75 2.95 0.75 0.86
30 A" 1121 1121 8.24 0.88 0.75 0.86
31 A" 871 871 1.07 0.03 0.75 0.86
32 A" 563 563 3.92 0.93 0.75 0.86
33 A" 220 220 1.23 0.01 0.75 0.86
34 A" 140 140 2.43 0.01 0.75 0.86
35 A" 67 67 0.00 0.34 0.75 0.86
36 A" 51 51 0.13 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 28486.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 28486.3 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/STO-3G
ABC
0.26949 0.06799 0.05602

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.369 0.099 0.000
C2 -0.939 -0.493 0.000
O3 0.000 0.559 0.000
O4 -0.622 -1.689 0.000
C5 1.361 0.018 0.000
C6 2.337 1.214 0.000
H7 -3.101 -0.715 0.000
H8 -2.515 0.723 0.889
H9 -2.515 0.723 -0.889
H10 1.521 -0.618 0.891
H11 1.521 -0.618 -0.891
H12 3.370 0.849 0.000
H13 2.179 1.832 -0.890
H14 2.179 1.832 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.54802.41342.49933.73084.83631.09471.09631.09634.05514.05515.78784.94834.9483
C21.54801.41041.23662.35583.69382.17382.18042.18042.61972.61974.51303.99043.9904
O32.41341.41042.33261.46462.42683.35292.67262.67262.12012.12013.38242.67632.6763
O42.49931.23662.33262.61654.14522.66333.19193.19192.55682.55684.73064.58694.5869
C53.73082.35581.46462.61651.54374.52194.03854.03851.10651.10652.17422.18042.1804
C64.83633.69382.42684.14521.54375.77014.95714.95712.19422.19421.09561.09531.0953
H71.09472.17383.35292.66334.52195.77011.78941.78944.70894.70896.65755.93015.9301
H81.09632.18042.67263.19194.03854.95711.78941.77904.25324.61095.95315.14154.8236
H91.09632.18042.67263.19194.03854.95711.78941.77904.61094.25325.95314.82365.1415
H104.05512.61972.12012.55681.10652.19424.70894.25324.61091.78272.52253.09992.5369
H114.05512.61972.12012.55681.10652.19424.70894.61094.25321.78272.52252.53693.0999
H125.78784.51303.38244.73062.17421.09566.65755.95315.95312.52252.52251.78241.7824
H134.94833.99042.67634.58692.18041.09535.93015.14154.82363.09992.53691.78241.7804
H144.94833.99042.67634.58692.18041.09535.93014.82365.14152.53693.09991.78241.7804

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 109.239 C1 C2 O4 127.313
C2 C1 H7 109.492 C2 C1 H8 109.916
C2 C1 H9 109.916 C2 O3 C5 110.032
O3 C2 O4 123.447 O3 C5 C6 107.522
O3 C5 H10 110.319 O3 C5 H11 110.319
C5 C6 H12 109.764 C5 C6 H13 110.271
C5 C6 H14 110.271 C6 C5 H10 110.691
C6 C5 H11 110.691 H7 C1 H8 109.517
H7 C1 H9 109.517 H8 C1 H9 108.465
H10 C5 H11 107.322 H12 C6 H13 108.884
H12 C6 H14 108.884 H13 C6 H14 108.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.235      
2 C 0.239      
3 O -0.200      
4 O -0.226      
5 C -0.030      
6 C -0.214      
7 H 0.089      
8 H 0.090      
9 H 0.090      
10 H 0.079      
11 H 0.079      
12 H 0.079      
13 H 0.080      
14 H 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.261 0.987 0.000 1.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.746 -0.712 0.000
y -0.712 -38.071 0.000
z 0.000 0.000 -32.830
Traceless
 xyz
x 5.704 -0.712 0.000
y -0.712 -6.782 0.000
z 0.000 0.000 1.078
Polar
3z2-r22.156
x2-y28.324
xy-0.712
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.049 0.327 0.000
y 0.327 4.126 0.000
z 0.000 0.000 2.697


<r2> (average value of r2) Å2
<r2> 204.837
(<r2>)1/2 14.312