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All results from a given calculation for CH3COOCH3 (methyl acetate)

using model chemistry: wB97X-D/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 wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-268.407554
Energy at 298.15K 
HF Energy-268.407554
Nuclear repulsion energy182.302421
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 wB97X-D/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' 3194 3056 5.40      
2 A' 3179 3041 13.56      
3 A' 3081 2947 2.65      
4 A' 3068 2935 28.99      
5 A' 1836 1756 288.00      
6 A' 1497 1432 19.79      
7 A' 1482 1418 15.69      
8 A' 1469 1405 13.38      
9 A' 1401 1340 77.43      
10 A' 1300 1244 326.92      
11 A' 1224 1170 0.99      
12 A' 1102 1054 61.38      
13 A' 998 955 1.83      
14 A' 877 839 19.25      
15 A' 654 625 6.09      
16 A' 430 412 6.06      
17 A' 290 277 12.38      
18 A" 3153 3016 4.28      
19 A" 3144 3008 18.15      
20 A" 1492 1427 10.58      
21 A" 1476 1412 7.70      
22 A" 1175 1124 1.14      
23 A" 1065 1019 7.18      
24 A" 608 582 5.27      
25 A" 176 169 5.30      
26 A" 101 97 1.67      
27 A" 142i 136i 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 19664.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 18811.3 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 wB97X-D/aug-cc-pVTZ
ABC
0.34466 0.13986 0.10332

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 1.468 0.000
C2 0.000 0.493 0.000
O3 -1.171 0.767 0.000
O4 0.471 -0.769 0.000
C5 -0.517 -1.786 0.000
H6 0.731 2.479 0.000
H7 1.750 1.318 0.880
H8 1.750 1.318 -0.880
H9 0.014 -2.734 0.000
H10 -1.148 -1.707 0.885
H11 -1.148 -1.707 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.48932.40232.33123.64511.08581.08931.08934.34684.00484.0048
C21.48931.20281.34782.33702.11602.12532.12533.22752.63532.6353
O32.40231.20282.24892.63472.55953.10053.10053.69592.62772.6277
O42.33121.34782.24891.41773.25892.60132.60132.01732.07002.0700
C53.64512.33702.63471.41774.44363.94303.94301.08711.08941.0894
H61.08582.11602.55953.25894.44361.77831.77835.26234.67344.6734
H71.08932.12533.10052.60133.94301.77831.76054.49534.18944.5461
H81.08932.12533.10052.60133.94301.77831.76054.49534.54614.1894
H94.34683.22753.69592.01731.08715.26234.49534.49531.78511.7851
H104.00482.63532.62772.07001.08944.67344.18944.54611.78511.7697
H114.00482.63532.62772.07001.08944.67344.54614.18941.78511.7697

picture of methyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 126.000 C1 C2 O4 110.405
C2 C1 H6 109.511 C2 C1 H7 110.052
C2 C1 H8 110.052 C2 O4 C5 115.324
O3 C2 O4 123.595 O4 C5 H9 106.540
O4 C5 H10 110.629 O4 C5 H11 110.629
H6 C1 H7 109.687 H6 C1 H8 109.687
H7 C1 H8 107.830 H9 C5 H10 110.206
H9 C5 H11 110.206 H10 C5 H11 108.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.551      
2 C 0.497      
3 O -0.685      
4 O -0.297      
5 C -0.659      
6 H 0.280      
7 H 0.253      
8 H 0.253      
9 H 0.273      
10 H 0.318      
11 H 0.318      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.679 -0.967 0.000 1.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.744 4.669 0.000
y 4.669 -26.531 0.000
z 0.000 0.000 -29.132
Traceless
 xyz
x -4.913 4.669 0.000
y 4.669 4.407 0.000
z 0.000 0.000 0.505
Polar
3z2-r21.010
x2-y2-6.213
xy4.669
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.059 0.411 0.000
y 0.411 7.853 0.000
z 0.000 0.000 5.429


<r2> (average value of r2) Å2
<r2> 119.247
(<r2>)1/2 10.920