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

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-268.387642
Energy at 298.15K-268.394354
Nuclear repulsion energy181.654997
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 B3PW91/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' 3174 3052 5.24      
2 A' 3161 3039 13.77      
3 A' 3060 2943 2.73      
4 A' 3053 2936 27.59      
5 A' 1823 1753 249.18      
6 A' 1494 1437 8.81      
7 A' 1469 1413 26.80      
8 A' 1463 1406 12.79      
9 A' 1389 1336 63.13      
10 A' 1277 1228 318.11      
11 A' 1207 1161 1.01      
12 A' 1085 1043 65.64      
13 A' 989 951 1.49      
14 A' 867 833 18.34      
15 A' 648 623 5.57      
16 A' 423 407 5.89      
17 A' 282 271 12.22      
18 A" 3128 3008 19.97      
19 A" 3126 3006 3.44      
20 A" 1478 1421 10.09      
21 A" 1469 1413 6.84      
22 A" 1174 1129 0.93      
23 A" 1062 1021 7.21      
24 A" 610 587 4.61      
25 A" 180 173 6.26      
26 A" 127 122 0.35      
27 A" 40 39 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 19628.0 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 18874.3 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 B3PW91/cc-pVTZ
ABC
0.34314 0.13982 0.10315

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 1.488 0.000
C2 0.000 0.491 0.000
O3 -1.173 0.756 0.000
O4 0.475 -0.768 0.000
C5 -0.517 -1.796 0.000
H6 0.713 2.494 0.000
H7 1.752 1.341 0.878
H8 1.752 1.341 -0.878
H9 0.030 -2.736 0.000
H10 -1.147 -1.722 0.886
H11 -1.147 -1.722 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50122.40962.34743.67051.08611.09081.09084.36284.03034.0303
C21.50121.20301.34622.34482.12642.13582.13583.22692.64592.6459
O32.40961.20302.24552.63512.56553.10973.10973.69312.63192.6319
O42.34741.34622.24551.42853.27132.61672.61672.01722.08052.0805
C53.67052.34482.63511.42854.46323.96923.96921.08701.09001.0900
H61.08612.12642.56553.27134.46321.78371.78375.27444.69334.6933
H71.09082.13583.10972.61673.96921.78371.75684.51124.21724.5714
H81.09082.13583.10972.61673.96921.78371.75684.51124.57144.2172
H94.36283.22693.69312.01721.08705.27444.51124.51121.78821.7882
H104.03032.64592.63192.08051.09004.69334.21724.57141.78821.7719
H114.03032.64592.63192.08051.09004.69334.57144.21721.78821.7719

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 125.662 C1 C2 O4 110.940
C2 C1 H6 109.504 C2 C1 H7 109.965
C2 C1 H8 109.965 C2 O4 C5 115.328
O3 C2 O4 123.398 O4 C5 H9 105.825
O4 C5 H10 110.682 O4 C5 H11 110.682
H6 C1 H7 110.050 H6 C1 H8 110.050
H7 C1 H8 107.280 H9 C5 H10 110.452
H9 C5 H11 110.452 H10 C5 H11 108.738
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.257 0.000    
2 C 0.288 0.000    
3 O -0.316 0.000    
4 O -0.224 0.000    
5 C -0.087 0.000    
6 H 0.112 0.000    
7 H 0.104 0.000    
8 H 0.104 0.000    
9 H 0.098 0.000    
10 H 0.089 0.000    
11 H 0.089 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.601 -0.945 0.000 1.859
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.033 -2.769 0.000
y -2.769 -32.034 0.000
z 0.000 0.000 -29.065
Traceless
 xyz
x 0.517 -2.769 0.000
y -2.769 -2.485 0.000
z 0.000 0.000 1.968
Polar
3z2-r23.937
x2-y22.002
xy-2.769
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 117.917
(<r2>)1/2 10.859