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

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-307.591580
Energy at 298.15K 
HF Energy-307.591580
Nuclear repulsion energy244.757705
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 M06-2X/6-31G(2df,p)
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' 3210 3058 4.20 60.86 0.69 0.82
2 A' 3165 3015 16.38 70.27 0.71 0.83
3 A' 3090 2943 1.40 102.36 0.00 0.01
4 A' 3081 2934 17.04 38.23 0.19 0.32
5 A' 3078 2932 10.43 157.36 0.01 0.01
6 A' 1886 1796 245.20 3.58 0.34 0.51
7 A' 1526 1454 5.44 1.19 0.74 0.85
8 A' 1500 1429 1.68 19.63 0.75 0.86
9 A' 1472 1402 12.86 13.30 0.73 0.84
10 A' 1437 1369 15.95 2.71 0.74 0.85
11 A' 1405 1338 92.15 2.46 0.75 0.86
12 A' 1386 1320 29.21 1.85 0.58 0.73
13 A' 1310 1247 381.21 0.57 0.60 0.75
14 A' 1154 1099 36.09 6.38 0.12 0.21
15 A' 1120 1067 49.54 3.37 0.58 0.73
16 A' 1017 969 7.66 1.20 0.17 0.30
17 A' 974 927 3.21 2.29 0.22 0.37
18 A' 884 842 6.48 8.01 0.33 0.49
19 A' 652 621 8.72 7.14 0.29 0.45
20 A' 430 409 0.82 0.25 0.72 0.84
21 A' 380 362 10.03 2.32 0.26 0.41
22 A' 200 190 4.77 0.27 0.65 0.78
23 A" 3167 3017 7.73 68.76 0.75 0.86
24 A" 3167 3016 19.13 14.92 0.75 0.86
25 A" 3123 2975 11.41 71.61 0.75 0.86
26 A" 1488 1417 5.20 16.20 0.75 0.86
27 A" 1478 1407 7.04 13.78 0.75 0.86
28 A" 1301 1239 1.51 9.33 0.75 0.86
29 A" 1188 1131 4.48 1.01 0.75 0.86
30 A" 1068 1017 6.84 0.30 0.75 0.86
31 A" 807 769 0.51 0.24 0.75 0.86
32 A" 612 583 5.15 1.00 0.75 0.86
33 A" 263 251 0.96 0.00 0.75 0.86
34 A" 153 146 3.71 0.02 0.75 0.86
35 A" 77 73 0.00 0.23 0.75 0.86
36 A" 63 60 0.72 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26155.9 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 24910.9 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 M06-2X/6-31G(2df,p)
ABC
0.28385 0.07055 0.05835

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.304 0.030 0.000
C2 -0.900 -0.515 0.000
O3 0.000 0.480 0.000
O4 -0.601 -1.677 0.000
C5 1.367 0.062 0.000
C6 2.223 1.309 0.000
H7 -3.011 -0.796 0.000
H8 -2.455 0.657 0.880
H9 -2.455 0.657 -0.880
H10 1.549 -0.561 0.881
H11 1.549 -0.561 -0.881
H12 3.280 1.036 0.000
H13 2.020 1.914 -0.886
H14 2.020 1.914 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50582.34772.41093.67164.70431.08751.09161.09163.99603.99605.67454.79874.7987
C21.50581.34191.19942.33993.61692.12962.13692.13692.60302.60304.45943.90003.9000
O32.34771.34192.23861.42982.37243.27062.61412.61412.06332.06333.32722.63042.6304
O42.41091.19942.23862.62604.10932.56613.10803.10802.57712.57714.73554.53244.5324
C53.67162.33991.42982.62601.51234.46203.96733.96731.09391.09392.14702.15412.1541
C64.70433.61692.37244.10931.51235.64184.80444.80442.17402.17401.09191.09181.0918
H71.08752.12963.27062.56614.46205.64181.78821.78824.65024.65026.55325.78275.7827
H81.09162.13692.61413.10803.96734.80441.78821.76084.18484.54045.81494.97184.6476
H91.09162.13692.61413.10803.96734.80441.78821.76084.54044.18485.81494.64764.9718
H103.99602.60302.06332.57711.09392.17404.65024.18484.54041.76192.51533.07692.5192
H113.99602.60302.06332.57711.09392.17404.65024.54044.18481.76192.51532.51923.0769
H125.67454.45943.32724.73552.14701.09196.55325.81495.81492.51532.51531.77321.7732
H134.79873.90002.63044.53242.15411.09185.78274.97184.64763.07692.51921.77321.7714
H144.79873.90002.63044.53242.15411.09185.78274.64764.97182.51923.07691.77321.7714

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 110.930 C1 C2 O4 125.674
C2 C1 H7 109.352 C2 C1 H8 109.685
C2 C1 H9 109.685 C2 O3 C5 115.144
O3 C2 O4 123.396 O3 C5 C6 107.454
O3 C5 H10 108.959 O3 C5 H11 108.959
C5 C6 H12 110.015 C5 C6 H13 110.584
C5 C6 H14 110.584 C6 C5 H10 112.060
C6 C5 H11 112.060 H7 C1 H8 110.290
H7 C1 H9 110.290 H8 C1 H9 107.516
H10 C5 H11 107.285 H12 C6 H13 108.583
H12 C6 H14 108.583 H13 C6 H14 108.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.507      
2 C 0.482      
3 O -0.309      
4 O -0.385      
5 C -0.048      
6 C -0.426      
7 H 0.164      
8 H 0.165      
9 H 0.165      
10 H 0.136      
11 H 0.136      
12 H 0.139      
13 H 0.144      
14 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.193 1.885 0.000 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.420 -0.962 0.000
y -0.962 -41.786 0.000
z 0.000 0.000 -35.102
Traceless
 xyz
x 8.024 -0.962 0.000
y -0.962 -9.025 0.000
z 0.000 0.000 1.001
Polar
3z2-r22.002
x2-y211.366
xy-0.962
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.809 0.493 0.000
y 0.493 7.510 0.000
z 0.000 0.000 5.984


<r2> (average value of r2) Å2
<r2> 199.075
(<r2>)1/2 14.109