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

using model chemistry: PBE1PBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-307.397738
Energy at 298.15K 
HF Energy-307.397738
Nuclear repulsion energy243.925848
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 PBE1PBE/daug-cc-pVDZ
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' 3200 3200 5.05 55.96 0.68 0.81
2 A' 3149 3149 20.08 68.87 0.68 0.81
3 A' 3077 3077 17.42 74.73 0.06 0.11
4 A' 3073 3073 0.68 213.09 0.00 0.01
5 A' 3060 3060 16.04 183.55 0.00 0.01
6 A' 1823 1823 277.25 7.80 0.22 0.36
7 A' 1493 1493 7.48 1.03 0.74 0.85
8 A' 1469 1469 2.63 6.85 0.75 0.86
9 A' 1442 1442 15.12 5.51 0.60 0.75
10 A' 1416 1416 13.22 1.60 0.75 0.86
11 A' 1384 1384 116.24 0.39 0.60 0.75
12 A' 1361 1361 11.90 0.85 0.28 0.43
13 A' 1284 1284 351.56 1.19 0.62 0.76
14 A' 1139 1139 9.17 7.98 0.11 0.19
15 A' 1099 1099 92.85 1.81 0.75 0.86
16 A' 1006 1006 9.35 1.00 0.17 0.29
17 A' 968 968 5.63 2.74 0.11 0.20
18 A' 868 868 6.67 5.94 0.21 0.35
19 A' 646 646 6.66 7.42 0.20 0.33
20 A' 428 428 0.96 0.27 0.64 0.78
21 A' 370 370 9.29 3.19 0.20 0.34
22 A' 194 194 5.78 0.38 0.53 0.69
23 A" 3155 3155 32.48 18.42 0.75 0.86
24 A" 3153 3153 3.44 52.11 0.75 0.86
25 A" 3123 3123 4.68 79.50 0.75 0.86
26 A" 1458 1458 7.19 5.10 0.75 0.86
27 A" 1450 1450 8.54 4.23 0.75 0.86
28 A" 1283 1283 1.18 3.69 0.75 0.86
29 A" 1166 1166 3.48 0.30 0.75 0.86
30 A" 1050 1050 5.95 0.06 0.75 0.86
31 A" 799 799 1.02 0.22 0.75 0.86
32 A" 609 609 4.22 0.33 0.75 0.86
33 A" 258 258 1.00 0.01 0.75 0.86
34 A" 157 157 4.51 0.03 0.75 0.86
35 A" 65 65 0.42 0.20 0.75 0.86
36 A" 35 35 0.36 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25854.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25854.5 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 PBE1PBE/daug-cc-pVDZ
ABC
0.28279 0.07001 0.05795

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.307 0.033 0.000
C2 -0.909 -0.511 0.000
O3 0.000 0.482 0.000
O4 -0.612 -1.683 0.000
C5 1.376 0.064 0.000
C6 2.233 1.305 0.000
H7 -3.019 -0.795 0.000
H8 -2.462 0.665 0.884
H9 -2.462 0.665 -0.884
H10 1.553 -0.561 0.886
H11 1.553 -0.561 -0.886
H12 3.293 1.019 0.000
H13 2.041 1.916 -0.891
H14 2.041 1.916 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50062.35032.41193.68304.71501.09221.09711.09714.00494.00495.68604.82164.8216
C21.50061.34551.20902.35533.62862.12942.13902.13902.61672.61674.47103.92233.9223
O32.35031.34552.24941.43782.38003.27782.62222.62222.06952.06953.33632.64912.6491
O42.41191.20902.24942.64604.12572.56503.11653.11652.59472.59474.74844.55934.5593
C53.68302.35531.43782.64601.50864.47773.98373.98371.09781.09782.14182.16062.1606
C64.71503.62862.38004.12571.50865.65634.82034.82032.17402.17401.09751.09711.0971
H71.09222.12943.27782.56504.47775.65631.79511.79514.66294.66296.56715.80955.8095
H81.09712.13902.62223.11653.98374.82031.79511.76774.19794.55555.83294.99954.6740
H91.09712.13902.62223.11653.98374.82031.79511.76774.55554.19795.83294.67404.9995
H104.00492.61672.06952.59471.09782.17404.66294.19794.55551.77102.51093.08662.5244
H114.00492.61672.06952.59471.09782.17404.66294.55554.19791.77102.51092.52443.0866
H125.68604.47103.33634.74842.14181.09756.56715.83295.83292.51092.51091.77891.7789
H134.82163.92232.64914.55932.16061.09715.80954.99954.67403.08662.52441.77891.7810
H144.82163.92232.64914.55932.16061.09715.80954.67404.99952.52443.08661.77891.7810

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 111.225 C1 C2 O4 125.440
C2 C1 H7 109.411 C2 C1 H8 109.880
C2 C1 H9 109.880 C2 O3 C5 115.570
O3 C2 O4 123.335 O3 C5 C6 107.732
O3 C5 H10 108.664 O3 C5 H11 108.664
C5 C6 H12 109.531 C5 C6 H13 111.047
C5 C6 H14 111.047 C6 C5 H10 112.078
C6 C5 H11 112.078 H7 C1 H8 110.155
H7 C1 H9 110.155 H8 C1 H9 107.337
H10 C5 H11 107.532 H12 C6 H13 108.302
H12 C6 H14 108.302 H13 C6 H14 108.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.794      
2 C 0.595      
3 O -0.650      
4 O -0.954      
5 C 1.810      
6 C 0.155      
7 H -0.253      
8 H -0.018      
9 H -0.018      
10 H -0.499      
11 H -0.499      
12 H -0.268      
13 H -0.097      
14 H -0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.273 2.067 0.000 2.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.575 -1.089 0.000
y -1.089 -43.135 0.000
z 0.000 0.000 -35.776
Traceless
 xyz
x 8.880 -1.089 0.000
y -1.089 -9.960 0.000
z 0.000 0.000 1.080
Polar
3z2-r22.159
x2-y212.560
xy-1.089
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.366 0.581 0.000
y 0.581 8.931 0.000
z 0.000 0.000 7.022


<r2> (average value of r2) Å2
<r2> 200.760
(<r2>)1/2 14.169