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

using model chemistry: B3PW91/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 B3PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-307.710089
Energy at 298.15K 
HF Energy-307.710089
Nuclear repulsion energy244.119828
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 B3PW91/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' 3170 3170 5.28 56.15 0.66 0.80
2 A' 3120 3120 19.65 67.95 0.68 0.81
3 A' 3059 3059 3.16 149.00 0.00 0.01
4 A' 3054 3054 14.40 129.75 0.04 0.07
5 A' 3046 3046 15.53 185.30 0.00 0.01
6 A' 1806 1806 277.83 8.09 0.22 0.36
7 A' 1512 1512 7.32 1.08 0.74 0.85
8 A' 1491 1491 2.85 6.86 0.75 0.86
9 A' 1463 1463 15.17 5.73 0.60 0.75
10 A' 1421 1421 5.93 1.25 0.69 0.82
11 A' 1398 1398 51.90 0.17 0.72 0.84
12 A' 1382 1382 20.82 1.15 0.35 0.52
13 A' 1273 1273 404.41 1.19 0.55 0.71
14 A' 1137 1137 11.68 7.29 0.11 0.19
15 A' 1081 1081 106.19 1.74 0.75 0.86
16 A' 1010 1010 7.50 1.35 0.15 0.27
17 A' 955 955 5.89 2.23 0.13 0.23
18 A' 864 864 7.82 6.42 0.20 0.34
19 A' 641 641 5.55 7.47 0.20 0.34
20 A' 429 429 0.93 0.28 0.64 0.78
21 A' 368 368 8.86 3.30 0.21 0.35
22 A' 192 192 5.68 0.38 0.52 0.69
23 A" 3126 3126 32.16 22.51 0.75 0.86
24 A" 3125 3125 2.31 48.34 0.75 0.86
25 A" 3091 3091 5.17 76.97 0.75 0.86
26 A" 1479 1479 6.95 5.03 0.75 0.86
27 A" 1470 1470 8.35 4.10 0.75 0.86
28 A" 1294 1294 1.06 3.52 0.75 0.86
29 A" 1174 1174 3.59 0.35 0.75 0.86
30 A" 1062 1062 6.04 0.07 0.75 0.86
31 A" 807 807 1.01 0.20 0.75 0.86
32 A" 611 611 4.39 0.31 0.75 0.86
33 A" 261 261 0.95 0.01 0.75 0.86
34 A" 154 154 4.55 0.04 0.75 0.86
35 A" 64 64 0.38 0.19 0.75 0.86
36 A" 39 39 0.32 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25813.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25813.9 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 B3PW91/daug-cc-pVTZ
ABC
0.28354 0.06991 0.05789

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.306 0.032 0.000
C2 -0.908 -0.517 0.000
O3 0.000 0.476 0.000
O4 -0.616 -1.685 0.000
C5 1.380 0.068 0.000
C6 2.231 1.313 0.000
H7 -3.018 -0.789 0.000
H8 -2.460 0.659 0.878
H9 -2.460 0.659 -0.878
H10 1.562 -0.552 0.880
H11 1.562 -0.552 -0.880
H12 3.286 1.036 0.000
H13 2.037 1.921 -0.885
H14 2.037 1.921 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50152.34822.40863.68604.71411.08611.09071.09074.00954.00955.68164.81824.8182
C21.50151.34491.20432.36143.63292.12732.13632.13632.62242.62244.47233.92403.9240
O32.34821.34492.24671.43902.38273.27192.61882.61882.06642.06643.33372.64992.6499
O42.40861.20432.24672.65644.13412.56353.10933.10932.60842.60844.75724.56334.5633
C53.68602.36141.43902.65641.50794.48043.98363.98361.09151.09152.13802.15592.1559
C64.71413.63292.38274.13411.50795.65364.81714.81712.16742.16741.09121.09061.0906
H71.08612.12733.27192.56354.48045.65361.78301.78304.66974.66976.56275.80335.8033
H81.09072.13632.61883.10933.98364.81711.78301.75704.20074.55395.82544.99284.6712
H91.09072.13632.61883.10933.98364.81711.78301.75704.55394.20075.82544.67124.9928
H104.00952.62242.06642.60841.09152.16744.66974.20074.55391.76022.50343.07442.5176
H114.00952.62242.06642.60841.09152.16744.66974.55394.20071.76022.50342.51763.0744
H125.68164.47233.33374.75722.13801.09126.56275.82545.82542.50342.50341.76781.7678
H134.81823.92402.64994.56332.15591.09065.80334.99284.67123.07442.51761.76781.7691
H144.81823.92402.64994.56332.15591.09065.80334.67124.99282.51763.07441.76781.7691

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 111.051 C1 C2 O4 125.436
C2 C1 H7 109.546 C2 C1 H8 109.990
C2 C1 H9 109.990 C2 O3 C5 115.998
O3 C2 O4 123.513 O3 C5 C6 107.885
O3 C5 H10 108.717 O3 C5 H11 108.717
C5 C6 H12 109.644 C5 C6 H13 111.111
C5 C6 H14 111.111 C6 C5 H10 111.985
C6 C5 H11 111.985 H7 C1 H8 109.989
H7 C1 H9 109.989 H8 C1 H9 107.310
H10 C5 H11 107.470 H12 C6 H13 108.238
H12 C6 H14 108.238 H13 C6 H14 108.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.520      
2 C 1.149      
3 O -0.217      
4 O -1.431      
5 C -0.348      
6 C -0.847      
7 H 0.290      
8 H 0.186      
9 H 0.186      
10 H 0.363      
11 H 0.363      
12 H 0.269      
13 H 0.278      
14 H 0.278      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.308 2.064 0.000 2.087
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.434 -1.067 0.000
y -1.067 -42.891 0.000
z 0.000 0.000 -35.528
Traceless
 xyz
x 8.775 -1.067 0.000
y -1.067 -9.910 0.000
z 0.000 0.000 1.135
Polar
3z2-r22.270
x2-y212.456
xy-1.067
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.338 0.593 0.000
y 0.593 8.877 0.000
z 0.000 0.000 6.953


<r2> (average value of r2) Å2
<r2> 200.730
(<r2>)1/2 14.168