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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-268.458757
Energy at 298.15K-268.465445
Nuclear repulsion energy180.801381
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 B3LYP/6-311G*
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' 3162 3056 25.14      
2 A' 3161 3054 7.14      
3 A' 3056 2953 32.47      
4 A' 3055 2952 2.53      
5 A' 1817 1755 246.69      
6 A' 1518 1466 9.20      
7 A' 1491 1441 19.88      
8 A' 1485 1435 12.19      
9 A' 1409 1362 50.65      
10 A' 1270 1227 335.41      
11 A' 1219 1178 1.19      
12 A' 1076 1040 82.36      
13 A' 988 955 1.85      
14 A' 861 832 20.69      
15 A' 646 624 5.35      
16 A' 423 409 6.05      
17 A' 282 273 11.80      
18 A" 3126 3021 29.20      
19 A" 3113 3008 9.57      
20 A" 1502 1451 9.68      
21 A" 1492 1442 8.72      
22 A" 1183 1143 0.88      
23 A" 1074 1038 7.17      
24 A" 608 588 6.02      
25 A" 180 174 6.90      
26 A" 127 123 0.27      
27 A" 38 37 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 19680.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 19017.5 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 B3LYP/6-311G*
ABC
0.34063 0.13836 0.10214

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.137 1.487 0.000
C2 0.000 0.495 0.000
O3 -1.173 0.769 0.000
O4 0.470 -0.773 0.000
C5 -0.529 -1.806 0.000
H6 0.737 2.499 0.000
H7 1.767 1.338 0.879
H8 1.767 1.338 -0.879
H9 0.022 -2.743 0.000
H10 -1.159 -1.731 0.887
H11 -1.159 -1.731 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50862.41902.35623.69001.08801.09241.09244.37494.05154.0515
C21.50861.20461.35242.36092.13492.14642.14643.23882.66232.6623
O32.41901.20462.25322.65412.57713.12153.12153.71032.65332.6533
O42.35621.35242.25321.43663.28262.62902.62902.02082.08772.0877
C53.69002.36092.65411.43664.48683.99083.99081.08771.09081.0908
H61.08802.13492.57713.28264.48681.78421.78425.29094.71984.7198
H71.09242.14643.12152.62903.99081.78421.75894.52494.24044.5938
H81.09242.14643.12152.62903.99081.78421.75894.52494.59384.2404
H94.37493.23883.71032.02081.08775.29094.52494.52491.79061.7906
H104.05152.66232.65332.08771.09084.71984.24044.59381.79061.7749
H114.05152.66232.65332.08771.09084.71984.59384.24041.79061.7749

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 125.764 C1 C2 O4 110.769
C2 C1 H6 109.543 C2 C1 H7 110.191
C2 C1 H8 110.191 C2 O4 C5 115.635
O3 C2 O4 123.467 O4 C5 H9 105.530
O4 C5 H10 110.634 O4 C5 H11 110.634
H6 C1 H7 109.829 H6 C1 H8 109.829
H7 C1 H8 107.229 H9 C5 H10 110.564
H9 C5 H11 110.564 H10 C5 H11 108.895
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.677     -0.605
2 C 0.398     0.163
3 O -0.346     0.164
4 O -0.304     0.164
5 C -0.437     0.070
6 H 0.238     0.070
7 H 0.235     -0.053
8 H 0.235     -0.422
9 H 0.217     -0.555
10 H 0.220     0.880
11 H 0.220     0.122


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.475 -1.010 0.000 1.788
CHELPG        
AIM        
ESP -2.376 -3.843 0.000 4.518


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.632 -2.743 0.000
y -2.743 -32.010 0.000
z 0.000 0.000 -29.326
Traceless
 xyz
x 0.035 -2.743 0.000
y -2.743 -2.031 0.000
z 0.000 0.000 1.995
Polar
3z2-r23.991
x2-y21.377
xy-2.743
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.647 -0.195 0.000
y -0.195 7.276 0.000
z 0.000 0.000 4.412


<r2> (average value of r2) Å2
<r2> 119.226
(<r2>)1/2 10.919