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

using model chemistry: HSEh1PBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/Def2TZVPP
 hartrees
Energy at 0K-307.505981
Energy at 298.15K 
HF Energy-307.505981
Nuclear repulsion energy244.718405
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 HSEh1PBE/Def2TZVPP
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' 3188 3188 4.99 58.71 0.67 0.80
2 A' 3137 3137 19.14 69.76 0.68 0.81
3 A' 3072 3072 2.71 132.75 0.00 0.01
4 A' 3067 3067 14.80 114.04 0.05 0.10
5 A' 3058 3058 14.67 169.94 0.00 0.01
6 A' 1828 1828 270.67 4.43 0.29 0.45
7 A' 1516 1516 7.21 1.34 0.73 0.84
8 A' 1492 1492 3.06 9.79 0.75 0.86
9 A' 1464 1464 14.80 7.12 0.66 0.79
10 A' 1429 1429 8.85 1.74 0.75 0.86
11 A' 1402 1402 70.50 0.39 0.74 0.85
12 A' 1385 1385 26.12 1.28 0.62 0.77
13 A' 1289 1289 400.49 0.62 0.43 0.60
14 A' 1145 1145 12.61 7.18 0.11 0.20
15 A' 1096 1096 96.39 2.01 0.74 0.85
16 A' 1014 1014 7.93 1.20 0.16 0.28
17 A' 967 967 5.11 2.21 0.12 0.22
18 A' 872 872 7.26 6.67 0.25 0.40
19 A' 648 648 6.27 7.12 0.26 0.42
20 A' 432 432 0.92 0.25 0.67 0.80
21 A' 373 373 9.32 2.74 0.26 0.42
22 A' 195 195 5.50 0.37 0.62 0.77
23 A" 3142 3142 32.06 26.56 0.75 0.86
24 A" 3141 3141 1.43 46.43 0.75 0.86
25 A" 3105 3105 5.92 78.86 0.75 0.86
26 A" 1480 1480 7.27 7.56 0.75 0.86
27 A" 1470 1470 8.86 6.26 0.75 0.86
28 A" 1299 1299 1.21 5.47 0.75 0.86
29 A" 1180 1180 3.77 0.43 0.75 0.86
30 A" 1065 1065 6.48 0.09 0.75 0.86
31 A" 809 809 1.05 0.14 0.75 0.86
32 A" 615 615 4.27 0.82 0.75 0.86
33 A" 265 265 0.94 0.03 0.75 0.86
34 A" 155 155 4.35 0.02 0.75 0.86
35 A" 66 66 0.33 0.23 0.75 0.86
36 A" 42 42 0.43 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25950.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25950.1 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 HSEh1PBE/Def2TZVPP
ABC
0.28480 0.07033 0.05823

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.301 0.030 0.000
C2 -0.904 -0.514 0.000
O3 0.000 0.475 0.000
O4 -0.611 -1.680 0.000
C5 1.374 0.067 0.000
C6 2.224 1.309 0.000
H7 -3.011 -0.791 0.000
H8 -2.455 0.658 0.878
H9 -2.455 0.658 -0.878
H10 1.557 -0.554 0.879
H11 1.557 -0.554 -0.879
H12 3.280 1.034 0.000
H13 2.029 1.917 -0.884
H14 2.029 1.917 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49862.34332.40353.67514.70191.08601.09061.09063.99923.99925.67004.80544.8054
C21.49861.34061.20152.35173.62112.12482.13342.13342.61382.61384.46153.91173.9117
O32.34331.34062.23991.43372.37523.26662.61402.61402.06292.06293.32712.64192.6419
O42.40351.20152.23992.64464.11972.55893.10423.10422.59662.59664.74404.54884.5488
C53.67512.35171.43372.64461.50494.46863.97323.97321.09171.09172.13682.15262.1526
C64.70193.62112.37524.11971.50495.64074.80534.80532.16532.16531.09111.09061.0906
H71.08602.12483.26662.55894.46865.64071.78341.78344.65784.65786.55035.79005.7900
H81.09062.13342.61403.10423.97324.80531.78341.75654.19104.54475.81424.98054.6581
H91.09062.13342.61403.10423.97324.80531.78341.75654.54474.19105.81424.65814.9805
H103.99922.61382.06292.59661.09172.16534.65784.19104.54471.75892.50263.07212.5154
H113.99922.61382.06292.59661.09172.16534.65784.54474.19101.75892.50262.51543.0721
H125.67004.46153.32714.74402.13681.09116.55035.81425.81422.50262.50261.76781.7678
H134.80543.91172.64194.54882.15261.09065.79004.98054.65813.07212.51541.76781.7688
H144.80543.91172.64194.54882.15261.09065.79004.65814.98052.51543.07211.76781.7688

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 111.118 C1 C2 O4 125.421
C2 C1 H7 109.553 C2 C1 H8 109.958
C2 C1 H9 109.958 C2 O3 C5 115.881
O3 C2 O4 123.462 O3 C5 C6 107.835
O3 C5 H10 108.788 O3 C5 H11 108.788
C5 C6 H12 109.771 C5 C6 H13 111.055
C5 C6 H14 111.055 C6 C5 H10 112.014
C6 C5 H11 112.014 H7 C1 H8 110.038
H7 C1 H9 110.038 H8 C1 H9 107.267
H10 C5 H11 107.324 H12 C6 H13 108.250
H12 C6 H14 108.250 H13 C6 H14 108.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 C 0.311      
3 O -0.246      
4 O -0.338      
5 C 0.020      
6 C -0.224      
7 H 0.107      
8 H 0.099      
9 H 0.099      
10 H 0.088      
11 H 0.088      
12 H 0.077      
13 H 0.082      
14 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.271 2.045 0.000 2.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.545 -1.063 0.000
y -1.063 -42.821 0.000
z 0.000 0.000 -35.558
Traceless
 xyz
x 8.645 -1.063 0.000
y -1.063 -9.769 0.000
z 0.000 0.000 1.125
Polar
3z2-r22.249
x2-y212.276
xy-1.063
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.824 0.543 0.000
y 0.543 8.430 0.000
z 0.000 0.000 6.647


<r2> (average value of r2) Å2
<r2> 199.763
(<r2>)1/2 14.134