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

using model chemistry: PBE1PBE/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/cc-pVDZ
 hartrees
Energy at 0K-307.373651
Energy at 298.15K 
HF Energy-307.373651
Nuclear repulsion energy244.108058
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/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' 3212 3089 3.34 67.75 0.70 0.83
2 A' 3161 3040 16.25 82.19 0.71 0.83
3 A' 3081 2963 2.17 121.79 0.00 0.01
4 A' 3073 2955 14.42 160.69 0.04 0.08
5 A' 3068 2950 17.21 85.71 0.01 0.02
6 A' 1861 1789 249.90 2.96 0.40 0.57
7 A' 1495 1438 6.33 1.67 0.74 0.85
8 A' 1471 1415 2.34 18.09 0.75 0.86
9 A' 1439 1384 18.12 11.49 0.70 0.82
10 A' 1422 1368 13.58 4.43 0.74 0.85
11 A' 1387 1334 127.59 2.38 0.75 0.85
12 A' 1361 1309 28.38 1.57 0.61 0.76
13 A' 1291 1242 353.29 0.63 0.51 0.67
14 A' 1143 1099 14.81 6.48 0.14 0.25
15 A' 1107 1064 82.61 2.49 0.75 0.86
16 A' 1005 966 9.71 0.84 0.22 0.36
17 A' 974 937 3.92 2.37 0.12 0.22
18 A' 874 841 6.53 6.69 0.32 0.49
19 A' 649 624 7.48 7.22 0.33 0.49
20 A' 427 410 0.75 0.29 0.64 0.78
21 A' 373 359 10.20 2.65 0.33 0.49
22 A' 195 188 4.65 0.37 0.67 0.80
23 A" 3166 3044 3.16 65.29 0.75 0.86
24 A" 3163 3041 24.23 30.41 0.75 0.86
25 A" 3120 3000 11.75 86.72 0.75 0.86
26 A" 1455 1399 7.08 14.56 0.75 0.86
27 A" 1444 1389 9.42 12.19 0.75 0.86
28 A" 1284 1234 1.01 7.09 0.75 0.86
29 A" 1168 1123 4.71 0.90 0.75 0.86
30 A" 1051 1011 8.13 0.04 0.75 0.86
31 A" 804 773 1.37 0.17 0.75 0.86
32 A" 607 583 3.85 0.86 0.75 0.86
33 A" 269 259 1.01 0.02 0.75 0.86
34 A" 155 149 3.88 0.04 0.75 0.86
35 A" 60 58 0.03 0.19 0.75 0.86
36 A" 45 43 1.08 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25930.4 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 24932.1 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/cc-pVDZ
ABC
0.28223 0.07032 0.05814

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.303 0.034 0.000
C2 -0.906 -0.513 0.000
O3 0.000 0.482 0.000
O4 -0.608 -1.682 0.000
C5 1.372 0.063 0.000
C6 2.227 1.304 0.000
H7 -3.021 -0.793 0.000
H8 -2.457 0.669 0.885
H9 -2.457 0.669 -0.885
H10 1.553 -0.567 0.886
H11 1.553 -0.567 -0.886
H12 3.292 1.027 0.000
H13 2.030 1.918 -0.891
H14 2.030 1.918 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50112.34662.41293.67514.70511.09511.09971.09974.00244.00245.68284.80844.8084
C21.50111.34571.20642.34893.62162.13372.14162.14162.61402.61404.47143.91443.9144
O32.34661.34572.24791.43422.37393.27902.61812.61812.07292.07293.33682.64132.6413
O42.41291.20642.24792.63844.11722.57193.11933.11932.58782.58784.74844.55094.5509
C53.67512.34891.43422.63841.50744.47503.97593.97591.10161.10162.14902.16092.1609
C64.70513.62162.37394.11721.50745.65144.80904.80902.17662.17661.10011.10011.1001
H71.09512.13373.27902.57194.47505.65141.79951.79954.66454.66456.57015.80135.8013
H81.09972.14162.61813.11933.97594.80901.79951.76974.19624.55445.82764.98474.6575
H91.09972.14162.61813.11933.97594.80901.79951.76974.55444.19625.82764.65754.9847
H104.00242.61402.07292.58781.10162.17664.66454.19624.55441.77112.51973.09162.5301
H114.00242.61402.07292.58781.10162.17664.66454.55444.19621.77112.51972.53013.0916
H125.68284.47143.33684.74842.14901.10016.57015.82765.82762.51972.51971.78321.7832
H134.80843.91442.64134.55092.16091.10015.80134.98474.65753.09162.53011.78321.7824
H144.80843.91442.64134.55092.16091.10015.80134.65754.98472.53013.09161.78321.7824

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 110.916 C1 C2 O4 125.696
C2 C1 H7 109.547 C2 C1 H8 109.902
C2 C1 H9 109.902 C2 O3 C5 115.302
O3 C2 O4 123.388 O3 C5 C6 107.581
O3 C5 H10 108.954 O3 C5 H11 108.954
C5 C6 H12 110.026 C5 C6 H13 110.969
C5 C6 H14 110.969 C6 C5 H10 112.145
C6 C5 H11 112.145 H7 C1 H8 110.153
H7 C1 H9 110.153 H8 C1 H9 107.154
H10 C5 H11 106.997 H12 C6 H13 108.285
H12 C6 H14 108.285 H13 C6 H14 108.215
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 C 0.150      
3 O -0.285      
4 O -0.264      
5 C 0.059      
6 C -0.092      
7 H 0.068      
8 H 0.075      
9 H 0.075      
10 H 0.053      
11 H 0.053      
12 H 0.049      
13 H 0.056      
14 H 0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.231 1.879 0.000 1.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.507 -1.045 0.000
y -1.045 -41.897 0.000
z 0.000 0.000 -35.241
Traceless
 xyz
x 8.062 -1.045 0.000
y -1.045 -9.023 0.000
z 0.000 0.000 0.961
Polar
3z2-r21.922
x2-y211.390
xy-1.045
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.902 0.483 0.000
y 0.483 7.508 0.000
z 0.000 0.000 5.834


<r2> (average value of r2) Å2
<r2> 199.877
(<r2>)1/2 14.138