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

using model chemistry: BLYP/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 BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-307.722069
Energy at 298.15K 
HF Energy-307.722069
Nuclear repulsion energy240.938080
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 BLYP/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' 3076 3066 7.49 63.24 0.64 0.78
2 A' 3023 3013 24.91 77.17 0.68 0.81
3 A' 2978 2968 5.80 154.53 0.01 0.01
4 A' 2974 2964 13.35 144.65 0.04 0.08
5 A' 2966 2956 18.36 206.27 0.01 0.01
6 A' 1701 1695 252.00 9.30 0.23 0.37
7 A' 1479 1474 5.50 0.90 0.75 0.85
8 A' 1461 1456 2.98 7.65 0.75 0.86
9 A' 1438 1433 16.04 6.37 0.57 0.73
10 A' 1381 1377 5.23 1.64 0.48 0.65
11 A' 1362 1357 16.02 0.52 0.41 0.59
12 A' 1352 1348 11.07 1.87 0.54 0.70
13 A' 1187 1183 345.49 1.91 0.53 0.69
14 A' 1097 1094 7.09 6.76 0.10 0.19
15 A' 1002 998 168.61 2.31 0.64 0.78
16 A' 977 974 1.68 1.67 0.24 0.38
17 A' 899 896 19.69 1.82 0.09 0.17
18 A' 813 810 10.24 7.89 0.22 0.37
19 A' 610 608 2.87 9.44 0.21 0.34
20 A' 417 416 0.91 0.52 0.58 0.73
21 A' 353 352 7.32 4.71 0.22 0.36
22 A' 186 185 5.34 0.43 0.49 0.65
23 A" 3035 3024 38.91 15.74 0.75 0.86
24 A" 3029 3018 5.76 58.09 0.75 0.86
25 A" 3005 2994 3.26 90.39 0.75 0.86
26 A" 1452 1447 5.89 5.32 0.75 0.86
27 A" 1443 1438 7.37 4.37 0.75 0.86
28 A" 1256 1251 0.72 3.67 0.75 0.86
29 A" 1141 1137 3.05 0.74 0.75 0.86
30 A" 1034 1031 4.10 0.08 0.75 0.86
31 A" 793 790 0.67 0.25 0.75 0.86
32 A" 587 585 3.91 0.31 0.75 0.86
33 A" 251 250 0.95 0.02 0.75 0.86
34 A" 148 148 4.54 0.05 0.75 0.86
35 A" 58 58 0.43 0.22 0.75 0.86
36 A" 17 17 0.24 0.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 24989.1 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 24904.1 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 BLYP/aug-cc-pVTZ
ABC
0.27645 0.06793 0.05626

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.334 0.033 0.000
C2 -0.924 -0.528 0.000
O3 0.000 0.482 0.000
O4 -0.633 -1.711 0.000
C5 1.410 0.070 0.000
C6 2.259 1.333 0.000
H7 -3.052 -0.789 0.000
H8 -2.489 0.664 0.883
H9 -2.489 0.664 -0.883
H10 1.589 -0.550 0.886
H11 1.589 -0.550 -0.886
H12 3.322 1.059 0.000
H13 2.063 1.942 -0.889
H14 2.063 1.942 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.51712.37652.43633.74384.77331.09171.09641.09644.06384.06385.74784.87474.8747
C21.51711.36981.21812.40983.68772.14352.15672.15672.66532.66534.53323.97713.9771
O32.37651.36982.28301.46902.41403.30622.64772.64772.09202.09203.37152.67882.6788
O42.43631.21812.28302.71034.19872.58903.14143.14142.65932.65934.82824.62644.6264
C53.74382.40981.46902.71031.52164.54394.04204.04201.09621.09622.15242.17302.1730
C64.77333.68772.41404.19871.52165.71944.87634.87632.18582.18581.09721.09611.0961
H71.09172.14353.30622.58904.54395.71941.79091.79094.73114.73116.63625.86595.8659
H81.09642.15672.64773.14144.04204.87631.79091.76604.25544.60865.89125.04944.7281
H91.09642.15672.64773.14144.04204.87631.79091.76604.60864.25545.89124.72815.0494
H104.06382.66532.09202.65931.09622.18584.73114.25544.60861.77242.52483.09632.5366
H114.06382.66532.09202.65931.09622.18584.73114.60864.25541.77242.52482.53663.0963
H125.74784.53323.37154.82822.15241.09726.63625.89125.89122.52482.52481.77691.7769
H134.87473.97712.67884.62642.17301.09615.86595.04944.72813.09632.53661.77691.7787
H144.87473.97712.67884.62642.17301.09615.86594.72815.04942.53663.09631.77691.7787

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 110.710 C1 C2 O4 125.575
C2 C1 H7 109.420 C2 C1 H8 110.183
C2 C1 H9 110.183 C2 O3 C5 116.136
O3 C2 O4 123.715 O3 C5 C6 107.631
O3 C5 H10 108.400 O3 C5 H11 108.400
C5 C6 H12 109.485 C5 C6 H13 111.179
C5 C6 H14 111.179 C6 C5 H10 112.200
C6 C5 H11 112.200 H7 C1 H8 109.867
H7 C1 H9 109.867 H8 C1 H9 107.297
H10 C5 H11 107.887 H12 C6 H13 108.220
H12 C6 H14 108.220 H13 C6 H14 108.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 C 0.422      
3 O -0.190      
4 O -0.611      
5 C 0.072      
6 C -0.635      
7 H 0.218      
8 H 0.146      
9 H 0.146      
10 H 0.182      
11 H 0.182      
12 H 0.193      
13 H 0.142      
14 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.394 2.031 0.000 2.069
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.246 -1.039 0.000
y -1.039 -43.828 0.000
z 0.000 0.000 -36.371
Traceless
 xyz
x 8.854 -1.039 0.000
y -1.039 -10.019 0.000
z 0.000 0.000 1.165
Polar
3z2-r22.331
x2-y212.582
xy-1.039
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.243 0.686 0.000
y 0.686 9.479 0.000
z 0.000 0.000 7.318


<r2> (average value of r2) Å2
<r2> 206.208
(<r2>)1/2 14.360