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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-267.982587
Energy at 298.15K-267.989490
HF Energy-266.937183
Nuclear repulsion energy182.657449
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 MP2=FULL/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' 3229 3065 3.41      
2 A' 3224 3061 10.40      
3 A' 3119 2961 3.66      
4 A' 3115 2958 23.83      
5 A' 1821 1729 203.40      
6 A' 1534 1457 9.80      
7 A' 1500 1424 21.60      
8 A' 1494 1418 12.46      
9 A' 1414 1343 75.82      
10 A' 1302 1236 314.67      
11 A' 1225 1163 1.41      
12 A' 1104 1049 62.60      
13 A' 1006 955 1.57      
14 A' 876 831 21.92      
15 A' 657 624 6.31      
16 A' 430 408 5.83      
17 A' 294 280 11.60      
18 A" 3192 3031 15.17      
19 A" 3190 3029 2.61      
20 A" 1519 1442 9.16      
21 A" 1507 1431 7.27      
22 A" 1199 1139 1.27      
23 A" 1077 1023 5.34      
24 A" 622 590 4.36      
25 A" 186 177 5.24      
26 A" 170 162 1.49      
27 A" 69 66 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 20037.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19023.7 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 MP2=FULL/cc-pVTZ
ABC
0.34331 0.14170 0.10415

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.115 1.465 0.000
C2 0.000 0.489 0.000
O3 -1.180 0.750 0.000
O4 0.491 -0.768 0.000
C5 -0.514 -1.767 0.000
H6 0.712 2.469 0.000
H7 1.736 1.320 0.877
H8 1.736 1.320 -0.877
H9 0.001 -2.719 0.000
H10 -1.141 -1.680 0.880
H11 -1.141 -1.680 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.48212.40322.31913.62001.08101.08421.08424.32983.96923.9692
C21.48211.20811.34962.31382.10452.11462.11463.20712.60342.6034
O32.40321.20812.25762.60352.55633.09703.09703.66352.58422.5842
O42.31911.34962.25761.41763.24482.58392.58392.01102.06652.0665
C53.62002.31382.60351.41764.41023.91923.91921.08151.08411.0841
H61.08102.10452.55633.24484.41021.77091.77095.23604.62824.6282
H71.08422.11463.09702.58393.91921.77091.75324.48174.15594.5120
H81.08422.11463.09702.58393.91921.77091.75324.48174.51204.1559
H94.32983.20713.66352.01101.08155.23604.48174.48171.77681.7768
H103.96922.60342.58422.06651.08414.62824.15594.51201.77681.7603
H113.96922.60342.58422.06651.08414.62824.51204.15591.77681.7603

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 126.283 C1 C2 O4 109.877
C2 C1 H6 109.390 C2 C1 H7 110.008
C2 C1 H8 110.008 C2 O4 C5 113.449
O3 C2 O4 123.840 O4 C5 H9 106.382
O4 C5 H10 110.684 O4 C5 H11 110.684
H6 C1 H7 109.754 H6 C1 H8 109.754
H7 C1 H8 107.909 H9 C5 H10 110.263
H9 C5 H11 110.263 H10 C5 H11 108.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability