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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-267.663935
Energy at 298.15K-267.670772
HF Energy-266.851164
Nuclear repulsion energy 
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 CCD/6-31+G**
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' 3256 3068 16.36      
2 A' 3253 3065 5.23      
3 A' 3136 2955 32.35      
4 A' 3133 2952 1.86      
5 A' 1865 1757 277.84      
6 A' 1553 1463 8.33      
7 A' 1528 1440 15.31      
8 A' 1523 1435 10.77      
9 A' 1458 1374 60.39      
10 A' 1335 1258 362.62      
11 A' 1244 1172 1.81      
12 A' 1124 1059 63.78      
13 A' 1023 964 3.91      
14 A' 886 835 23.30      
15 A' 657 619 8.65      
16 A' 432 407 5.68      
17 A' 291 275 13.14      
18 A" 3227 3041 21.01      
19 A" 3215 3030 5.58      
20 A" 1537 1448 6.27      
21 A" 1525 1437 7.51      
22 A" 1206 1136 2.86      
23 A" 1097 1033 4.12      
24 A" 615 579 8.32      
25 A" 178 167 7.43      
26 A" 153 144 1.42      
27 A" 60 57 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 20253.9 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 19085.3 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 CCD/6-31+G**
ABC
0.33984 0.13881 0.10233

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.119 1.501 0.000
C2 0.000 0.493 0.000
O3 -1.185 0.752 0.000
O4 0.484 -0.769 0.000
C5 -0.512 -1.806 0.000
H6 0.699 2.502 0.000
H7 1.743 1.354 0.881
H8 1.743 1.354 -0.881
H9 0.046 -2.737 0.000
H10 -1.136 -1.731 0.888
H11 -1.136 -1.731 -0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50592.42272.35713.68751.08571.08941.08944.37194.03964.0396
C21.50591.21261.35212.35602.12692.13442.13443.23102.65072.6507
O32.42271.21262.25802.64532.57153.11643.11643.69992.63732.6373
O42.35711.35212.25801.43803.27822.62102.62102.01642.08282.0828
C53.68752.35602.64531.43804.47543.98133.98131.08531.08801.0880
H61.08572.12692.57153.27824.47541.78411.78415.27994.69844.6984
H71.08942.13443.11642.62103.98131.78411.76164.51634.21994.5756
H81.08942.13443.11642.62103.98131.78411.76164.51634.57564.2199
H94.37193.23103.69992.01641.08535.27994.51634.51631.78831.7883
H104.03962.65072.63732.08281.08804.69844.21994.57561.78831.7760
H114.03962.65072.63732.08281.08804.69844.57564.21991.78831.7760

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 125.700 C1 C2 O4 111.011
C2 C1 H6 109.237 C2 C1 H7 109.617
C2 C1 H8 109.617 C2 O4 C5 115.185
O3 C2 O4 123.289 O4 C5 H9 105.237
O4 C5 H10 110.321 O4 C5 H11 110.321
H6 C1 H7 110.223 H6 C1 H8 110.223
H7 C1 H8 107.908 H9 C5 H10 110.751
H9 C5 H11 110.751 H10 C5 H11 109.406
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability