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

using model chemistry: wB97X-D/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-307.750675
Energy at 298.15K 
HF Energy-307.750675
Nuclear repulsion energy244.608322
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/aug-cc-pVQZ
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' 3185 3185 5.67 53.50 0.68 0.81
2 A' 3137 3137 20.43 64.46 0.69 0.81
3 A' 3072 3072 3.35 143.41 0.00 0.00
4 A' 3068 3068 15.05 138.09 0.03 0.07
5 A' 3058 3058 15.74 166.89 0.00 0.01
6 A' 1831 1831 294.87 8.26 0.22 0.35
7 A' 1526 1526 7.54 1.34 0.75 0.86
8 A' 1504 1504 3.28 6.26 0.75 0.86
9 A' 1475 1475 14.84 5.28 0.62 0.76
10 A' 1442 1442 5.96 0.86 0.74 0.85
11 A' 1415 1415 71.90 0.16 0.72 0.84
12 A' 1399 1399 21.01 0.75 0.31 0.48
13 A' 1301 1301 418.78 1.02 0.61 0.76
14 A' 1150 1150 16.61 7.50 0.11 0.20
15 A' 1102 1102 90.34 1.61 0.67 0.80
16 A' 1023 1023 6.66 1.56 0.17 0.29
17 A' 966 966 4.35 2.18 0.18 0.30
18 A' 880 880 8.24 6.08 0.19 0.32
19 A' 650 650 6.30 7.28 0.20 0.33
20 A' 438 438 0.96 0.25 0.66 0.80
21 A' 377 377 9.14 3.10 0.21 0.34
22 A' 197 197 5.63 0.36 0.53 0.70
23 A" 3144 3144 5.94 51.95 0.75 0.86
24 A" 3142 3142 30.03 16.26 0.75 0.86
25 A" 3109 3109 5.70 73.77 0.75 0.86
26 A" 1493 1493 7.32 4.79 0.75 0.86
27 A" 1483 1483 8.72 3.90 0.75 0.86
28 A" 1313 1313 1.27 3.55 0.75 0.86
29 A" 1188 1188 3.77 0.24 0.75 0.86
30 A" 1076 1076 6.39 0.06 0.75 0.86
31 A" 821 821 0.81 0.18 0.75 0.86
32 A" 619 619 4.95 0.33 0.75 0.86
33 A" 266 266 0.92 0.01 0.75 0.86
34 A" 153 153 4.63 0.03 0.75 0.86
35 A" 71 71 0.40 0.18 0.75 0.86
36 A" 39 39 0.32 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26055.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26055.9 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/aug-cc-pVQZ
ABC
0.28432 0.07016 0.05809

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.302 0.020 0.000
C2 -0.901 -0.523 0.000
O3 0.000 0.468 0.000
O4 -0.607 -1.686 0.000
C5 1.378 0.075 0.000
C6 2.216 1.330 0.000
H7 -3.010 -0.802 0.000
H8 -2.457 0.645 0.878
H9 -2.457 0.645 -0.878
H10 1.569 -0.540 0.879
H11 1.569 -0.540 -0.879
H12 3.272 1.064 0.000
H13 2.014 1.933 -0.884
H14 2.014 1.933 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50242.34552.40523.68054.70401.08471.08891.08894.00964.00965.67154.80284.8028
C21.50241.33911.20042.35613.62572.12702.13402.13402.62262.62264.46493.91233.9123
O32.34551.33912.23801.43282.37743.26682.61492.61492.06212.06213.32612.64232.6423
O42.40521.20042.23802.65354.13082.56033.10283.10282.61242.61244.75524.55484.5548
C53.68052.35611.43282.65351.50884.47443.97493.97491.09001.09002.13712.15342.1534
C64.70403.62572.37744.13081.50885.64374.80334.80332.16482.16481.08941.08901.0890
H71.08472.12703.26682.56034.47445.64371.78091.78094.67034.67036.55345.78765.7876
H81.08892.13402.61493.10283.97494.80331.78091.75624.19694.55015.81104.97464.6521
H91.08892.13402.61493.10283.97494.80331.78091.75624.55014.19695.81104.65214.9746
H104.00962.62262.06212.61241.09002.16484.67034.19694.55011.75902.49913.06932.5123
H114.00962.62262.06212.61241.09002.16484.67034.55014.19691.75902.49912.51233.0693
H125.67154.46493.32614.75522.13711.08946.55345.81105.81102.49912.49911.76651.7665
H134.80283.91232.64234.55482.15341.08905.78764.97464.65213.06932.51231.76651.7676
H144.80283.91232.64234.55482.15341.08905.78764.65214.97462.51233.06931.76651.7676

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 111.138 C1 C2 O4 125.354
C2 C1 H7 109.549 C2 C1 H8 109.849
C2 C1 H9 109.849 C2 O3 C5 116.381
O3 C2 O4 123.508 O3 C5 C6 107.813
O3 C5 H10 108.890 O3 C5 H11 108.890
C5 C6 H12 109.618 C5 C6 H13 110.950
C5 C6 H14 110.950 C6 C5 H10 111.803
C6 C5 H11 111.803 H7 C1 H8 110.040
H7 C1 H9 110.040 H8 C1 H9 107.489
H10 C5 H11 107.578 H12 C6 H13 108.368
H12 C6 H14 108.368 H13 C6 H14 108.508
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.082      
2 C 0.792      
3 O -0.882      
4 O -0.648      
5 C 0.320      
6 C 0.054      
7 H 0.032      
8 H 0.072      
9 H 0.072      
10 H 0.017      
11 H 0.017      
12 H 0.006      
13 H 0.033      
14 H 0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.291 2.086 0.000 2.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.339 -1.019 0.000
y -1.019 -42.920 0.000
z 0.000 0.000 -35.460
Traceless
 xyz
x 8.851 -1.019 0.000
y -1.019 -10.021 0.000
z 0.000 0.000 1.170
Polar
3z2-r22.341
x2-y212.581
xy-1.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.058 0.566 0.000
y 0.566 8.795 0.000
z 0.000 0.000 6.934


<r2> (average value of r2) Å2
<r2> 200.074
(<r2>)1/2 14.145