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

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

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-pVTZ
 hartrees
Energy at 0K-307.727911
Energy at 298.15K 
HF Energy-307.727911
Nuclear repulsion energy244.505015
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-pVTZ
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' 3186 3047 5.88 53.61 0.68 0.81
2 A' 3138 3002 21.02 64.80 0.68 0.81
3 A' 3074 2940 3.53 141.93 0.00 0.00
4 A' 3070 2937 14.80 140.85 0.03 0.07
5 A' 3059 2926 16.09 165.14 0.00 0.01
6 A' 1830 1750 295.92 8.29 0.22 0.36
7 A' 1526 1460 7.35 1.23 0.75 0.86
8 A' 1505 1439 3.14 6.46 0.75 0.86
9 A' 1477 1413 14.93 5.41 0.62 0.76
10 A' 1441 1379 6.10 0.88 0.74 0.85
11 A' 1415 1353 70.12 0.16 0.72 0.84
12 A' 1399 1338 20.37 0.77 0.32 0.48
13 A' 1300 1244 417.74 1.03 0.60 0.75
14 A' 1149 1099 16.20 7.59 0.11 0.19
15 A' 1100 1052 92.63 1.62 0.68 0.81
16 A' 1023 979 6.38 1.58 0.17 0.29
17 A' 965 923 4.43 2.20 0.18 0.30
18 A' 879 840 8.41 6.27 0.19 0.33
19 A' 648 620 6.24 7.30 0.20 0.33
20 A' 437 418 0.96 0.26 0.66 0.80
21 A' 376 360 9.25 3.12 0.21 0.34
22 A' 197 189 5.60 0.35 0.53 0.70
23 A" 3145 3008 5.81 51.46 0.75 0.86
24 A" 3143 3006 31.48 15.94 0.75 0.86
25 A" 3110 2975 5.26 74.55 0.75 0.86
26 A" 1493 1428 7.22 4.84 0.75 0.86
27 A" 1484 1419 8.60 3.96 0.75 0.86
28 A" 1312 1255 1.24 3.59 0.75 0.86
29 A" 1187 1136 3.77 0.26 0.75 0.86
30 A" 1077 1030 6.19 0.06 0.75 0.86
31 A" 819 783 0.76 0.18 0.75 0.86
32 A" 619 592 5.02 0.33 0.75 0.86
33 A" 265 254 0.90 0.01 0.75 0.86
34 A" 153 147 4.63 0.04 0.75 0.86
35 A" 70 67 0.43 0.18 0.75 0.86
36 A" 27 26 0.31 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26047.0 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 24916.5 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 wB97X-D/aug-cc-pVTZ
ABC
0.28397 0.07014 0.05806

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.303 0.022 0.000
C2 -0.902 -0.521 0.000
O3 0.000 0.469 0.000
O4 -0.608 -1.686 0.000
C5 1.378 0.073 0.000
C6 2.218 1.327 0.000
H7 -3.011 -0.800 0.000
H8 -2.456 0.648 0.878
H9 -2.456 0.648 -0.878
H10 1.568 -0.542 0.880
H11 1.568 -0.542 -0.880
H12 3.274 1.059 0.000
H13 2.016 1.930 -0.884
H14 2.016 1.930 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50222.34592.40673.68174.70531.08501.08921.08924.00954.00955.67304.80384.8038
C21.50221.34011.20192.35713.62662.12682.13372.13372.62252.62254.46603.91283.9128
O32.34591.34012.24001.43432.37793.26752.61482.61482.06302.06303.32722.64212.6421
O42.40671.20192.24002.65384.13122.56133.10423.10422.61132.61134.75554.55524.5552
C53.68172.35711.43432.65381.50894.47543.97593.97591.09021.09022.13732.15352.1535
C64.70533.62662.37794.13121.50895.64484.80444.80442.16552.16551.08971.08931.0893
H71.08502.12683.26752.56134.47545.64481.78171.78174.66984.66986.55465.78855.7885
H81.08922.13372.61483.10423.97594.80441.78171.75684.19654.55005.81234.97544.6528
H91.08922.13372.61483.10423.97594.80441.78171.75684.55004.19655.81234.65284.9754
H104.00952.62252.06302.61131.09022.16554.66984.19654.55001.75982.50033.07002.5127
H114.00952.62252.06302.61131.09022.16554.66984.55004.19651.75982.50032.51273.0700
H125.67304.46603.32724.75552.13731.08976.55465.81235.81232.50032.50031.76721.7672
H134.80383.91282.64214.55522.15351.08935.78854.97544.65283.07002.51271.76721.7682
H144.80383.91282.64214.55522.15351.08935.78854.65284.97542.51273.07001.76721.7682

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 111.120 C1 C2 O4 125.389
C2 C1 H7 109.528 C2 C1 H8 109.824
C2 C1 H9 109.824 C2 O3 C5 116.290
O3 C2 O4 123.492 O3 C5 C6 107.765
O3 C5 H10 108.842 O3 C5 H11 108.842
C5 C6 H12 109.613 C5 C6 H13 110.933
C5 C6 H14 110.933 C6 C5 H10 111.847
C6 C5 H11 111.847 H7 C1 H8 110.068
H7 C1 H9 110.068 H8 C1 H9 107.504
H10 C5 H11 107.629 H12 C6 H13 108.387
H12 C6 H14 108.387 H13 C6 H14 108.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.573      
2 C 0.466      
3 O -0.194      
4 O -0.728      
5 C -0.180      
6 C -0.896      
7 H 0.289      
8 H 0.239      
9 H 0.239      
10 H 0.292      
11 H 0.292      
12 H 0.282      
13 H 0.237      
14 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.292 2.090 0.000 2.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.350 -1.031 0.000
y -1.031 -42.982 0.000
z 0.000 0.000 -35.486
Traceless
 xyz
x 8.884 -1.031 0.000
y -1.031 -10.064 0.000
z 0.000 0.000 1.180
Polar
3z2-r22.361
x2-y212.632
xy-1.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.075 0.566 0.000
y 0.566 8.821 0.000
z 0.000 0.000 6.940


<r2> (average value of r2) Å2
<r2> 200.180
(<r2>)1/2 14.148