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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-267.612238
Energy at 298.15K-267.619154
HF Energy-266.834868
Nuclear repulsion energy181.813740
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 MP3=FULL/6-31G*
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' 3243 3043 6.21      
2 A' 3241 3041 14.19      
3 A' 3129 2936 23.92      
4 A' 3127 2934 0.60      
5 A' 1916 1798 232.39      
6 A' 1560 1463 7.18      
7 A' 1537 1442 20.46      
8 A' 1531 1436 16.62      
9 A' 1465 1374 83.10      
10 A' 1356 1273 328.91      
11 A' 1252 1175 1.92      
12 A' 1137 1067 58.16      
13 A' 1032 968 2.08      
14 A' 900 845 18.69      
15 A' 667 626 9.45      
16 A' 437 410 6.83      
17 A' 297 279 13.03      
18 A" 3213 3015 19.95      
19 A" 3202 3005 4.06      
20 A" 1549 1453 6.35      
21 A" 1534 1439 8.27      
22 A" 1216 1141 1.57      
23 A" 1107 1039 8.09      
24 A" 621 582 8.17      
25 A" 183 172 6.92      
26 A" 160 150 1.13      
27 A" 86 81 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 20347.6 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 19092.1 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 MP3=FULL/6-31G*
ABC
0.34181 0.13977 0.10304

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 1.471 0.000
C2 0.000 0.490 0.000
O3 -1.178 0.760 0.000
O4 0.485 -0.771 0.000
C5 -0.520 -1.780 0.000
H6 0.719 2.483 0.000
H7 1.750 1.322 0.884
H8 1.750 1.322 -0.884
H9 0.004 -2.735 0.000
H10 -1.151 -1.694 0.887
H11 -1.151 -1.694 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.49242.40952.33243.64351.08961.09291.09294.35323.99873.9987
C21.49241.20811.35142.32882.11822.12962.12963.22532.62402.6240
O32.40951.20812.25992.62322.56223.10933.10933.68932.60972.6097
O42.33241.35142.25991.42343.26262.60092.60092.02162.07742.0774
C53.64352.32882.62321.42344.43893.94403.94401.08991.09221.0922
H61.08962.11822.56223.26264.43891.78651.78655.26654.66184.6618
H71.09292.12963.10932.60093.94401.78651.76734.50434.18534.5445
H81.09292.12963.10932.60093.94401.78651.76734.50434.54454.1853
H94.35323.22533.68932.02161.08995.26654.50434.50431.79061.7906
H103.99872.62402.60972.07741.09224.66184.18534.54451.79061.7743
H113.99872.62402.60972.07741.09224.66184.54454.18531.79061.7743

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 125.993 C1 C2 O4 110.106
C2 C1 H6 109.252 C2 C1 H7 109.956
C2 C1 H8 109.956 C2 O4 C5 114.097
O3 C2 O4 123.901 O4 C5 H9 106.335
O4 C5 H10 110.646 O4 C5 H11 110.646
H6 C1 H7 109.878 H6 C1 H8 109.878
H7 C1 H8 107.907 H9 C5 H10 110.288
H9 C5 H11 110.288 H10 C5 H11 108.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability