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

using model chemistry: wB97X-D/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-307.728400
Energy at 298.15K 
HF Energy-307.728400
Nuclear repulsion energy244.499106
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/daug-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' 3185 3185 5.89 53.61 0.67 0.81
2 A' 3137 3137 21.04 64.73 0.69 0.81
3 A' 3074 3074 3.40 144.65 0.00 0.00
4 A' 3069 3069 14.95 141.67 0.03 0.07
5 A' 3059 3059 16.13 163.09 0.00 0.01
6 A' 1830 1830 295.22 8.34 0.22 0.35
7 A' 1526 1526 7.37 1.24 0.75 0.86
8 A' 1505 1505 3.15 6.46 0.75 0.86
9 A' 1477 1477 14.90 5.40 0.62 0.76
10 A' 1441 1441 6.19 0.85 0.74 0.85
11 A' 1415 1415 69.81 0.16 0.72 0.84
12 A' 1399 1399 19.61 0.78 0.32 0.48
13 A' 1300 1300 418.62 1.04 0.60 0.75
14 A' 1149 1149 16.31 7.59 0.11 0.19
15 A' 1099 1099 92.97 1.61 0.68 0.81
16 A' 1023 1023 6.32 1.58 0.18 0.30
17 A' 964 964 4.40 2.21 0.18 0.30
18 A' 879 879 8.40 6.26 0.20 0.33
19 A' 648 648 6.24 7.33 0.20 0.33
20 A' 437 437 0.95 0.26 0.66 0.79
21 A' 376 376 9.23 3.13 0.20 0.34
22 A' 197 197 5.59 0.35 0.53 0.69
23 A" 3144 3144 5.89 51.48 0.75 0.86
24 A" 3143 3143 31.31 15.95 0.75 0.86
25 A" 3110 3110 5.32 74.42 0.75 0.86
26 A" 1493 1493 7.27 4.82 0.75 0.86
27 A" 1484 1484 8.58 3.98 0.75 0.86
28 A" 1311 1311 1.23 3.60 0.75 0.86
29 A" 1188 1188 3.76 0.26 0.75 0.86
30 A" 1076 1076 6.13 0.06 0.75 0.86
31 A" 819 819 0.75 0.19 0.75 0.86
32 A" 619 619 4.99 0.33 0.75 0.86
33 A" 265 265 0.90 0.01 0.75 0.86
34 A" 153 153 4.61 0.04 0.75 0.86
35 A" 69 69 0.44 0.18 0.75 0.86
36 A" 25 25 0.32 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26045.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26045.6 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/daug-cc-pVTZ
ABC
0.28392 0.07013 0.05806

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/daug-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 -0.522 0.000
O3 0.000 0.469 0.000
O4 -0.608 -1.687 0.000
C5 1.379 0.073 0.000
C6 2.218 1.327 0.000
H7 -3.011 -0.800 0.000
H8 -2.456 0.647 0.878
H9 -2.456 0.647 -0.878
H10 1.568 -0.542 0.880
H11 1.568 -0.542 -0.880
H12 3.274 1.061 0.000
H13 2.016 1.931 -0.884
H14 2.016 1.931 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50242.34592.40693.68194.70521.08491.08911.08914.01004.01005.67294.80364.8036
C21.50241.34011.20182.35733.62682.12702.13382.13382.62292.62294.46623.91293.9129
O32.34591.34012.24001.43432.37793.26762.61472.61472.06312.06313.32712.64212.6421
O42.40691.20182.24002.65404.13152.56163.10433.10432.61192.61194.75594.55544.5554
C53.68192.35731.43432.65401.50904.47573.97593.97591.09021.09022.13732.15362.1536
C64.70523.62682.37794.13151.50905.64494.80414.80412.16562.16561.08971.08921.0892
H71.08492.12703.26762.56164.47575.64491.78161.78164.67044.67046.55485.78845.7884
H81.08912.13382.61473.10433.97594.80411.78161.75684.19684.55025.81204.97504.6524
H91.08912.13382.61473.10433.97594.80411.78161.75684.55024.19685.81204.65244.9750
H104.01002.62292.06312.61191.09022.16564.67044.19684.55021.75982.50033.07012.5127
H114.01002.62292.06312.61191.09022.16564.67044.55024.19681.75982.50032.51273.0701
H125.67294.46623.32714.75592.13731.08976.55485.81205.81202.50032.50031.76711.7671
H134.80363.91292.64214.55542.15361.08925.78844.97504.65243.07012.51271.76711.7682
H144.80363.91292.64214.55542.15361.08925.78844.65244.97502.51273.07011.76711.7682

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 111.111 C1 C2 O4 125.399
C2 C1 H7 109.531 C2 C1 H8 109.820
C2 C1 H9 109.820 C2 O3 C5 116.304
O3 C2 O4 123.490 O3 C5 C6 107.757
O3 C5 H10 108.851 O3 C5 H11 108.851
C5 C6 H12 109.608 C5 C6 H13 110.935
C5 C6 H14 110.935 C6 C5 H10 111.844
C6 C5 H11 111.844 H7 C1 H8 110.068
H7 C1 H9 110.068 H8 C1 H9 107.510
H10 C5 H11 107.625 H12 C6 H13 108.386
H12 C6 H14 108.386 H13 C6 H14 108.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.827      
2 C 1.332      
3 O -0.372      
4 O -1.523      
5 C -0.506      
6 C -1.186      
7 H 0.316      
8 H 0.308      
9 H 0.308      
10 H 0.497      
11 H 0.497      
12 H 0.327      
13 H 0.415      
14 H 0.415      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.292 2.087 0.000 2.108
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.354 -1.032 0.000
y -1.032 -42.965 0.000
z 0.000 0.000 -35.491
Traceless
 xyz
x 8.873 -1.032 0.000
y -1.032 -10.042 0.000
z 0.000 0.000 1.168
Polar
3z2-r22.337
x2-y212.610
xy-1.032
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.081 0.567 0.000
y 0.567 8.822 0.000
z 0.000 0.000 6.952


<r2> (average value of r2) Å2
<r2> 200.189
(<r2>)1/2 14.149