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

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-307.828762
Energy at 298.15K 
HF Energy-307.828762
Nuclear repulsion energy243.508365
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 B3LYP/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' 3156 3051 7.23 63.85 0.65 0.79
2 A' 3104 3000 25.17 74.53 0.68 0.81
3 A' 3051 2949 7.50 78.85 0.00 0.01
4 A' 3050 2948 10.97 164.63 0.04 0.09
5 A' 3038 2937 16.60 160.03 0.00 0.01
6 A' 1797 1737 252.38 3.80 0.35 0.52
7 A' 1523 1472 5.62 1.49 0.74 0.85
8 A' 1500 1450 2.97 11.42 0.75 0.86
9 A' 1473 1424 14.23 8.14 0.67 0.80
10 A' 1427 1380 5.83 1.71 0.75 0.86
11 A' 1407 1360 30.98 0.28 0.75 0.86
12 A' 1393 1346 22.45 1.72 0.64 0.78
13 A' 1263 1221 412.48 0.67 0.43 0.60
14 A' 1137 1099 12.07 6.39 0.12 0.22
15 A' 1066 1031 128.26 2.11 0.75 0.86
16 A' 1012 978 4.92 1.83 0.20 0.34
17 A' 946 914 7.26 1.71 0.15 0.25
18 A' 859 830 9.41 7.51 0.26 0.42
19 A' 638 617 5.35 7.82 0.28 0.43
20 A' 430 416 0.89 0.31 0.62 0.77
21 A' 368 356 8.75 3.13 0.28 0.44
22 A' 193 186 5.21 0.39 0.61 0.76
23 A" 3112 3008 40.07 14.83 0.75 0.86
24 A" 3108 3004 5.16 55.95 0.75 0.86
25 A" 3082 2979 3.52 92.66 0.75 0.86
26 A" 1488 1438 6.36 8.25 0.75 0.86
27 A" 1479 1430 7.62 7.20 0.75 0.86
28 A" 1297 1254 1.08 5.15 0.75 0.86
29 A" 1181 1142 3.63 0.63 0.75 0.86
30 A" 1069 1033 5.78 0.05 0.75 0.86
31 A" 814 787 0.71 0.13 0.75 0.86
32 A" 611 590 4.76 0.70 0.75 0.86
33 A" 261 252 1.04 0.02 0.75 0.86
34 A" 152 147 4.27 0.03 0.75 0.86
35 A" 65 63 0.26 0.19 0.75 0.86
36 A" 47 45 0.58 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25796.6 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 24934.9 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 B3LYP/cc-pVTZ
ABC
0.28201 0.06948 0.05753

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.311 0.022 0.000
C2 -0.909 -0.525 0.000
O3 0.000 0.473 0.000
O4 -0.615 -1.694 0.000
C5 1.389 0.073 0.000
C6 2.228 1.332 0.000
H7 -3.021 -0.799 0.000
H8 -2.466 0.649 0.878
H9 -2.466 0.649 -0.878
H10 1.576 -0.543 0.880
H11 1.576 -0.543 -0.880
H12 3.286 1.070 0.000
H13 2.025 1.937 -0.884
H14 2.025 1.937 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50542.35442.41313.70064.72381.08531.09011.09014.02534.02535.69434.82114.8211
C21.50541.34991.20512.37483.64512.12952.13912.13912.63612.63614.48803.93033.9303
O32.35441.34992.25241.44562.38763.27732.62362.62362.07112.07113.33992.65012.6501
O42.41311.20512.25242.67214.15172.56703.11283.11282.62662.62664.78084.57494.5749
C53.70062.37481.44562.67211.51234.49543.99573.99571.09011.09012.14262.15792.1579
C64.72383.64512.38764.15171.51235.66434.82364.82362.17112.17111.09051.08991.0899
H71.08532.12953.27732.56704.49545.66431.78211.78214.68724.68726.57785.80675.8067
H81.09012.13912.62363.11283.99574.82361.78211.75624.21434.56625.83394.99274.6715
H91.09012.13912.62363.11283.99574.82361.78211.75624.56624.21435.83394.67154.9927
H104.02532.63612.07112.62661.09012.17114.68724.21434.56621.75922.50973.07552.5198
H114.02532.63612.07112.62661.09012.17114.68724.56624.21431.75922.50972.51983.0755
H125.69434.48803.33994.78082.14261.09056.57785.83395.83392.50972.50971.76751.7675
H134.82113.93032.65014.57492.15791.08995.80674.99274.67153.07552.51981.76751.7678
H144.82113.93032.65014.57492.15791.08995.80674.67154.99272.51983.07551.76751.7678

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 110.980 C1 C2 O4 125.458
C2 C1 H7 109.498 C2 C1 H8 109.984
C2 C1 H9 109.984 C2 O3 C5 116.279
O3 C2 O4 123.563 O3 C5 C6 107.628
O3 C5 H10 108.719 O3 C5 H11 108.719
C5 C6 H12 109.749 C5 C6 H13 111.003
C5 C6 H14 111.003 C6 C5 H10 112.056
C6 C5 H11 112.056 H7 C1 H8 110.011
H7 C1 H9 110.011 H8 C1 H9 107.327
H10 C5 H11 107.579 H12 C6 H13 108.311
H12 C6 H14 108.311 H13 C6 H14 108.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.284      
2 C 0.291      
3 O -0.248      
4 O -0.315      
5 C 0.028      
6 C -0.280      
7 H 0.118      
8 H 0.109      
9 H 0.109      
10 H 0.090      
11 H 0.090      
12 H 0.094      
13 H 0.099      
14 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.298 1.990 0.000 2.012
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.868 -1.042 0.000
y -1.042 -42.993 0.000
z 0.000 0.000 -35.777
Traceless
 xyz
x 8.517 -1.042 0.000
y -1.042 -9.670 0.000
z 0.000 0.000 1.153
Polar
3z2-r22.306
x2-y212.125
xy-1.042
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.831 0.574 0.000
y 0.574 8.304 0.000
z 0.000 0.000 6.526


<r2> (average value of r2) Å2
<r2> 201.908
(<r2>)1/2 14.209