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

using model chemistry: BLYP/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/cc-pVTZ
 hartrees
Energy at 0K-307.716733
Energy at 298.15K 
HF Energy-307.716733
Nuclear repulsion energy241.052102
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/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' 3078 3069 8.62 69.08 0.65 0.79
2 A' 3026 3017 27.08 81.10 0.68 0.81
3 A' 2979 2970 5.82 129.92 0.01 0.01
4 A' 2975 2966 14.45 121.54 0.06 0.11
5 A' 2967 2958 18.37 178.66 0.01 0.01
6 A' 1716 1711 222.22 3.85 0.30 0.46
7 A' 1483 1478 4.66 1.15 0.72 0.84
8 A' 1464 1459 2.99 12.92 0.75 0.86
9 A' 1439 1435 14.34 9.01 0.66 0.79
10 A' 1383 1379 5.76 2.54 0.67 0.80
11 A' 1363 1359 15.60 0.50 0.59 0.74
12 A' 1352 1348 14.69 2.84 0.67 0.80
13 A' 1190 1187 347.46 0.91 0.35 0.52
14 A' 1098 1095 7.93 5.74 0.12 0.22
15 A' 1003 1000 165.25 2.33 0.69 0.81
16 A' 977 975 2.87 1.78 0.25 0.39
17 A' 900 897 17.36 1.57 0.08 0.15
18 A' 815 812 9.75 8.62 0.27 0.43
19 A' 611 609 3.04 9.07 0.28 0.44
20 A' 416 415 0.82 0.49 0.57 0.73
21 A' 354 353 7.68 4.09 0.29 0.45
22 A' 186 185 4.76 0.44 0.60 0.75
23 A" 3036 3027 41.61 17.78 0.75 0.86
24 A" 3029 3020 6.81 60.69 0.75 0.86
25 A" 3004 2995 4.59 95.23 0.75 0.86
26 A" 1453 1449 5.78 9.01 0.75 0.86
27 A" 1444 1440 7.08 7.98 0.75 0.86
28 A" 1255 1252 0.74 5.29 0.75 0.86
29 A" 1143 1140 3.13 1.09 0.75 0.86
30 A" 1034 1031 4.30 0.02 0.75 0.86
31 A" 794 791 0.76 0.12 0.75 0.86
32 A" 586 584 3.57 0.72 0.75 0.86
33 A" 253 252 1.02 0.03 0.75 0.86
34 A" 148 148 4.03 0.04 0.75 0.86
35 A" 55 55 0.37 0.19 0.75 0.86
36 A" 24 24 0.47 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25017.7 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 24942.7 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/cc-pVTZ
ABC
0.27636 0.06806 0.05634

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.332 0.034 0.000
C2 -0.922 -0.529 0.000
O3 0.000 0.484 0.000
O4 -0.631 -1.710 0.000
C5 1.408 0.069 0.000
C6 2.257 1.332 0.000
H7 -3.050 -0.789 0.000
H8 -2.488 0.665 0.883
H9 -2.488 0.665 -0.883
H10 1.588 -0.552 0.886
H11 1.588 -0.552 -0.886
H12 3.320 1.061 0.000
H13 2.058 1.941 -0.889
H14 2.058 1.941 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.51782.37532.43613.74024.76961.09171.09651.09654.06154.06155.74534.86914.8691
C21.51781.36981.21682.40583.68422.14372.15742.15742.66232.66234.53103.97233.9723
O32.37531.36982.28311.46762.41133.30512.64582.64582.09242.09243.37022.67442.6744
O42.43611.21682.28312.70634.19512.58883.14133.14132.65562.65564.82654.62174.6217
C53.74022.40581.46762.70631.52204.53994.03844.03841.09641.09642.15452.17252.1725
C64.76963.68422.41134.19511.52205.71564.87214.87212.18632.18631.09721.09621.0962
H71.09172.14373.30512.58884.53995.71561.79141.79144.72824.72826.63385.86045.8604
H81.09652.15742.64583.14134.03844.87211.79141.76584.25334.60635.88815.04344.7219
H91.09652.15742.64583.14134.03844.87211.79141.76584.60634.25335.88814.72195.0434
H104.06152.66232.09242.65561.09642.18634.72824.25334.60631.77122.52693.09622.5371
H114.06152.66232.09242.65561.09642.18634.72824.60634.25331.77122.52692.53713.0962
H125.74534.53103.37024.82652.15451.09726.63385.88815.88812.52692.52691.77721.7772
H134.86913.97232.67444.62172.17251.09625.86045.04344.72193.09622.53711.77721.7782
H144.86913.97232.67444.62172.17251.09625.86044.72195.04342.53713.09621.77721.7782

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 110.580 C1 C2 O4 125.600
C2 C1 H7 109.381 C2 C1 H8 110.179
C2 C1 H9 110.179 C2 O3 C5 115.917
O3 C2 O4 123.820 O3 C5 C6 107.513
O3 C5 H10 108.524 O3 C5 H11 108.524
C5 C6 H12 109.623 C5 C6 H13 111.111
C5 C6 H14 111.111 C6 C5 H10 112.209
C6 C5 H11 112.209 H7 C1 H8 109.906
H7 C1 H9 109.906 H8 C1 H9 107.266
H10 C5 H11 107.753 H12 C6 H13 108.246
H12 C6 H14 108.246 H13 C6 H14 108.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.271      
2 C 0.273      
3 O -0.240      
4 O -0.293      
5 C 0.043      
6 C -0.264      
7 H 0.110      
8 H 0.103      
9 H 0.103      
10 H 0.082      
11 H 0.082      
12 H 0.088      
13 H 0.092      
14 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.361 1.924 0.000 1.958
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.273 -1.035 0.000
y -1.035 -43.143 0.000
z 0.000 0.000 -36.149
Traceless
 xyz
x 8.373 -1.035 0.000
y -1.035 -9.432 0.000
z 0.000 0.000 1.059
Polar
3z2-r22.117
x2-y211.870
xy-1.035
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.538 0.658 0.000
y 0.658 8.655 0.000
z 0.000 0.000 6.740


<r2> (average value of r2) Å2
<r2> 205.754
(<r2>)1/2 14.344