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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-267.634818
Energy at 298.15K-267.641662
HF Energy-266.853746
Nuclear repulsion energy180.445190
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/cc-pVDZ
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' 3242 3088 4.42      
2 A' 3235 3081 13.82      
3 A' 3109 2961 3.68      
4 A' 3100 2953 29.50      
5 A' 1835 1748 187.85      
6 A' 1503 1432 6.34      
7 A' 1478 1408 23.76      
8 A' 1468 1399 10.01      
9 A' 1399 1333 89.74      
10 A' 1291 1230 309.74      
11 A' 1212 1154 3.28      
12 A' 1098 1046 65.03      
13 A' 995 948 1.73      
14 A' 872 830 21.55      
15 A' 652 621 7.07      
16 A' 425 405 5.87      
17 A' 293 279 10.19      
18 A" 3205 3053 3.69      
19 A" 3199 3047 21.36      
20 A" 1488 1417 7.00      
21 A" 1477 1407 7.29      
22 A" 1184 1127 1.48      
23 A" 1064 1013 5.92      
24 A" 606 577 4.63      
25 A" 183 175 5.09      
26 A" 163 155 1.28      
27 A" 68 65 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 19921.1 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 18974.8 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/cc-pVDZ
ABC
0.33558 0.13972 0.10248

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.131 1.491 0.000
C2 0.000 0.491 0.000
O3 -1.187 0.751 0.000
O4 0.492 -0.776 0.000
C5 -0.527 -1.788 0.000
H6 0.721 2.509 0.000
H7 1.764 1.336 0.888
H8 1.764 1.336 -0.888
H9 0.009 -2.746 0.000
H10 -1.164 -1.703 0.894
H11 -1.164 -1.703 -0.894

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50992.43342.35523.67411.09721.10091.10094.38284.03324.0332
C21.50991.21481.35892.33892.14262.14742.14743.23682.63942.6394
O32.43341.21482.26892.62302.59433.13593.13593.69522.61152.6115
O42.35521.35892.26891.43583.29232.61972.61972.02832.09752.0975
C53.67412.33892.62301.43584.47393.97343.97341.09741.10091.1009
H61.09722.14262.59433.29234.47391.80291.80295.30244.69994.6999
H71.10092.14743.13592.61973.97341.80291.77574.53034.21914.5799
H81.10092.14743.13592.61973.97341.80291.77574.53034.57994.2191
H94.38283.23683.69522.02831.09745.30244.53034.53031.80591.8059
H104.03322.63942.61152.09751.10094.69994.21914.57991.80591.7875
H114.03322.63942.61152.09751.10094.69994.57994.21911.80591.7875

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 126.188 C1 C2 O4 110.247
C2 C1 H6 109.519 C2 C1 H7 109.681
C2 C1 H8 109.681 C2 O4 C5 113.597
O3 C2 O4 123.565 O4 C5 H9 105.616
O4 C5 H10 110.865 O4 C5 H11 110.865
H6 C1 H7 110.213 H6 C1 H8 110.213
H7 C1 H8 107.509 H9 C5 H10 110.468
H9 C5 H11 110.468 H10 C5 H11 108.557
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability