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

using model chemistry: M06-2X/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 M06-2X/aug-cc-pVTZ
 hartrees
Energy at 0K-307.694455
Energy at 298.15K 
HF Energy-307.694455
Nuclear repulsion energy244.716785
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/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' 3199 3057 3.46 51.28 0.67 0.80
2 A' 3151 3011 15.64 61.03 0.68 0.81
3 A' 3088 2951 1.68 137.37 0.00 0.00
4 A' 3085 2948 12.52 107.22 0.04 0.09
5 A' 3075 2939 11.78 186.26 0.00 0.00
6 A' 1848 1766 298.59 7.72 0.27 0.43
7 A' 1528 1460 6.23 1.20 0.75 0.86
8 A' 1503 1437 2.91 6.50 0.75 0.86
9 A' 1476 1410 14.33 5.38 0.63 0.78
10 A' 1440 1376 9.94 0.90 0.61 0.76
11 A' 1410 1348 79.67 0.17 0.75 0.86
12 A' 1394 1333 26.26 0.60 0.35 0.52
13 A' 1304 1246 414.96 0.84 0.65 0.79
14 A' 1152 1101 21.99 7.94 0.10 0.19
15 A' 1112 1062 79.81 1.97 0.60 0.75
16 A' 1022 977 7.94 1.56 0.15 0.26
17 A' 972 929 4.61 2.39 0.18 0.31
18 A' 883 844 8.71 6.48 0.20 0.33
19 A' 651 622 8.36 7.37 0.21 0.34
20 A' 435 415 0.94 0.21 0.68 0.81
21 A' 380 363 9.41 3.11 0.21 0.35
22 A' 201 192 5.59 0.38 0.58 0.74
23 A" 3155 3016 5.16 51.73 0.75 0.86
24 A" 3155 3015 21.45 11.34 0.75 0.86
25 A" 3122 2984 4.80 68.47 0.75 0.86
26 A" 1490 1424 6.70 4.90 0.75 0.86
27 A" 1482 1416 7.82 4.13 0.75 0.86
28 A" 1311 1253 1.42 3.71 0.75 0.86
29 A" 1186 1133 3.98 0.27 0.75 0.86
30 A" 1073 1026 6.69 0.04 0.75 0.86
31 A" 815 779 0.59 0.17 0.75 0.86
32 A" 615 587 5.84 0.34 0.75 0.86
33 A" 262 250 1.01 0.01 0.75 0.86
34 A" 152 145 4.74 0.03 0.75 0.86
35 A" 82 78 0.20 0.18 0.75 0.86
36 A" 60 58 0.48 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 26133.3 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 24975.6 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 M06-2X/aug-cc-pVTZ
ABC
0.28492 0.07031 0.05822

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.305 0.024 0.000
C2 -0.904 -0.515 0.000
O3 0.000 0.477 0.000
O4 -0.604 -1.678 0.000
C5 1.375 0.066 0.000
C6 2.222 1.315 0.000
H7 -3.009 -0.801 0.000
H8 -2.455 0.649 0.878
H9 -2.455 0.649 -0.878
H10 1.555 -0.551 0.880
H11 1.555 -0.551 -0.880
H12 3.277 1.045 0.000
H13 2.019 1.917 -0.884
H14 2.019 1.917 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50132.34932.40613.68054.70781.08441.08871.08874.00064.00065.67514.80264.8026
C21.50131.34181.20092.35203.62222.12432.12932.12932.61172.61174.46283.90393.9039
O32.34931.34182.23761.43492.37493.26902.61352.61352.06112.06113.32622.63302.6330
O42.40611.20092.23762.63804.11622.55963.10063.10062.58922.58924.74124.53734.5373
C53.68052.35201.43492.63801.50874.46903.97293.97291.08981.08982.13922.14992.1499
C64.70783.62222.37494.11621.50875.64284.80564.80562.16822.16821.08911.08881.0888
H71.08442.12433.26902.55964.46905.64281.78371.78374.65454.65456.55175.78375.7837
H81.08872.12932.61353.10063.97294.80561.78371.75684.18614.54035.81314.97334.6506
H91.08872.12932.61353.10063.97294.80561.78371.75684.54034.18615.81314.65064.9733
H104.00062.61172.06112.58921.08982.16824.65454.18614.54031.75942.50773.06912.5120
H114.00062.61172.06112.58921.08982.16824.65454.54034.18611.75942.50772.51203.0691
H125.67514.46283.32624.74122.13921.08916.55175.81315.81312.50772.50771.76791.7679
H134.80263.90392.63304.53732.14991.08885.78374.97334.65063.06912.51201.76791.7674
H144.80263.90392.63304.53732.14991.08885.78374.65064.97332.51203.06911.76791.7674

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 111.320 C1 C2 O4 125.490
C2 C1 H7 109.430 C2 C1 H8 109.569
C2 C1 H9 109.569 C2 O3 C5 115.736
O3 C2 O4 123.190 O3 C5 C6 107.542
O3 C5 H10 108.674 O3 C5 H11 108.674
C5 C6 H12 109.817 C5 C6 H13 110.688
C5 C6 H14 110.688 C6 C5 H10 112.107
C6 C5 H11 112.107 H7 C1 H8 110.335
H7 C1 H9 110.335 H8 C1 H9 107.578
H10 C5 H11 107.646 H12 C6 H13 108.537
H12 C6 H14 108.537 H13 C6 H14 108.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.683      
2 C 0.526      
3 O -0.016      
4 O -0.711      
5 C -0.381      
6 C -0.866      
7 H 0.293      
8 H 0.229      
9 H 0.229      
10 H 0.360      
11 H 0.360      
12 H 0.231      
13 H 0.215      
14 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.227 2.047 0.000 2.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.483 -1.021 0.000
y -1.021 -43.250 0.000
z 0.000 0.000 -35.812
Traceless
 xyz
x 9.048 -1.021 0.000
y -1.021 -10.103 0.000
z 0.000 0.000 1.054
Polar
3z2-r22.108
x2-y212.767
xy-1.021
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.976 0.566 0.000
y 0.566 8.690 0.000
z 0.000 0.000 6.834


<r2> (average value of r2) Å2
<r2> 199.846
(<r2>)1/2 14.137