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

using model chemistry: BLYP/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-307.601443
Energy at 298.15K 
HF Energy-307.601443
Nuclear repulsion energy240.319095
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-pVDZ
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' 3086 3091 8.00 76.79 0.68 0.81
2 A' 3033 3038 25.46 93.28 0.70 0.82
3 A' 2972 2977 4.94 134.47 0.01 0.01
4 A' 2962 2967 15.41 246.73 0.01 0.02
5 A' 2960 2965 23.34 14.87 0.58 0.73
6 A' 1736 1739 203.23 3.02 0.33 0.50
7 A' 1450 1453 3.54 1.55 0.73 0.85
8 A' 1430 1432 2.11 21.60 0.75 0.85
9 A' 1402 1404 11.96 14.59 0.69 0.82
10 A' 1366 1368 4.04 6.62 0.68 0.81
11 A' 1340 1342 15.92 0.96 0.70 0.82
12 A' 1325 1327 21.35 4.67 0.66 0.80
13 A' 1194 1196 366.84 0.49 0.21 0.35
14 A' 1092 1094 7.58 5.42 0.14 0.25
15 A' 1012 1014 128.52 2.71 0.71 0.83
16 A' 967 968 19.34 1.19 0.17 0.28
17 A' 907 908 13.67 1.73 0.11 0.21
18 A' 817 818 9.06 9.16 0.32 0.49
19 A' 611 612 3.97 8.98 0.33 0.49
20 A' 410 411 0.64 0.57 0.57 0.72
21 A' 354 354 8.25 3.88 0.33 0.50
22 A' 186 186 3.94 0.42 0.64 0.78
23 A" 3039 3043 38.45 33.64 0.75 0.86
24 A" 3034 3039 6.36 66.87 0.75 0.86
25 A" 2998 3003 13.31 97.17 0.75 0.86
26 A" 1416 1419 4.88 16.78 0.75 0.86
27 A" 1406 1408 7.02 14.37 0.75 0.86
28 A" 1236 1237 0.59 7.65 0.75 0.86
29 A" 1127 1129 3.62 1.94 0.75 0.86
30 A" 1014 1015 4.87 0.01 0.75 0.86
31 A" 784 785 0.95 0.16 0.75 0.86
32 A" 577 578 2.98 0.90 0.75 0.86
33 A" 259 260 0.98 0.03 0.75 0.86
34 A" 149 149 3.32 0.05 0.75 0.86
35 A" 50 50 0.17 0.21 0.75 0.86
36 A" 27 27 1.00 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 24861.8 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 24901.6 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-pVDZ
ABC
0.27315 0.06805 0.05624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.336 0.036 0.000
C2 -0.922 -0.530 0.000
O3 0.000 0.490 0.000
O4 -0.624 -1.715 0.000
C5 1.404 0.067 0.000
C6 2.258 1.331 0.000
H7 -3.064 -0.793 0.000
H8 -2.491 0.676 0.891
H9 -2.491 0.676 -0.891
H10 1.586 -0.565 0.893
H11 1.586 -0.565 -0.893
H12 3.333 1.059 0.000
H13 2.056 1.948 -0.898
H14 2.056 1.948 0.898

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.52222.37952.44873.73954.77271.10341.10851.10854.06684.06685.76064.87364.8736
C21.52221.37491.22242.40133.68462.15772.17002.17002.66302.66304.54263.97733.9773
O32.37951.37492.29151.46592.40953.32182.65212.65212.10402.10403.38152.67602.6760
O42.44871.22242.29152.69934.19312.60863.16223.16222.64642.64644.83284.62714.6271
C53.73952.40131.46592.69931.52554.54964.04134.04131.10961.10962.16982.18462.1846
C64.77273.68462.40954.19311.52555.73014.87584.87582.20112.20111.10901.10861.1086
H71.10342.15773.32182.60864.54965.73011.81171.81174.74054.74056.66005.87685.8768
H81.10852.17002.65213.16224.04134.87581.81171.78254.26174.62035.90435.04904.7214
H91.10852.17002.65213.16224.04134.87581.81171.78254.62034.26175.90434.72145.0490
H104.06682.66302.10402.64641.10962.20114.74054.26174.62031.78692.54763.12242.5574
H114.06682.66302.10402.64641.10962.20114.74054.62034.26171.78692.54762.55743.1224
H125.76064.54263.38154.83282.16981.10906.66005.90435.90432.54762.54761.79691.7969
H134.87363.97732.67604.62712.18461.10865.87685.04904.72143.12242.55741.79691.7960
H144.87363.97732.67604.62712.18461.10865.87684.72145.04902.55743.12241.79691.7960

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 110.329 C1 C2 O4 125.946
C2 C1 H7 109.495 C2 C1 H8 110.158
C2 C1 H9 110.158 C2 O3 C5 115.369
O3 C2 O4 123.724 O3 C5 C6 107.292
O3 C5 H10 108.767 O3 C5 H11 108.767
C5 C6 H12 109.890 C5 C6 H13 111.075
C5 C6 H14 111.075 C6 C5 H10 112.334
C6 C5 H11 112.334 H7 C1 H8 109.987
H7 C1 H9 109.987 H8 C1 H9 107.026
H10 C5 H11 107.260 H12 C6 H13 108.248
H12 C6 H14 108.248 H13 C6 H14 108.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.046      
2 C 0.090      
3 O -0.240      
4 O -0.216      
5 C 0.126      
6 C 0.011      
7 H 0.028      
8 H 0.037      
9 H 0.037      
10 H 0.015      
11 H 0.015      
12 H 0.012      
13 H 0.019      
14 H 0.019      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.309 1.788 0.000 1.815
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.167 -0.959 0.000
y -0.959 -42.036 0.000
z 0.000 0.000 -35.691
Traceless
 xyz
x 7.697 -0.959 0.000
y -0.959 -8.607 0.000
z 0.000 0.000 0.910
Polar
3z2-r21.821
x2-y210.869
xy-0.959
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.748 0.601 0.000
y 0.601 7.884 0.000
z 0.000 0.000 6.042


<r2> (average value of r2) Å2
<r2> 205.918
(<r2>)1/2 14.350