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

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-267.648923
Energy at 298.15K-267.655821
HF Energy-266.844461
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/6-31G**
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' 3262 3059 7.97      
2 A' 3258 3054 17.87      
3 A' 3142 2946 7.15      
4 A' 3140 2944 23.20      
5 A' 1902 1783 220.25      
6 A' 1562 1465 6.05      
7 A' 1538 1442 13.82      
8 A' 1531 1435 9.94      
9 A' 1464 1372 67.90      
10 A' 1346 1262 345.07      
11 A' 1249 1171 2.79      
12 A' 1132 1061 59.47      
13 A' 1027 963 2.77      
14 A' 893 837 19.31      
15 A' 661 620 9.35      
16 A' 433 406 6.56      
17 A' 295 276 12.12      
18 A" 3230 3028 24.73      
19 A" 3224 3023 6.15      
20 A" 1551 1454 4.41      
21 A" 1539 1443 5.78      
22 A" 1214 1138 2.54      
23 A" 1103 1034 5.93      
24 A" 614 575 8.95      
25 A" 182 171 6.60      
26 A" 155 145 0.91      
27 A" 83 78 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 20362.5 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 19091.9 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/6-31G**
ABC
0.34029 0.13958 0.10277

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 1.495 0.000
C2 0.000 0.491 0.000
O3 -1.181 0.751 0.000
O4 0.485 -0.771 0.000
C5 -0.518 -1.796 0.000
H6 0.707 2.498 0.000
H7 1.747 1.347 0.880
H8 1.747 1.347 -0.880
H9 0.027 -2.734 0.000
H10 -1.145 -1.718 0.886
H11 -1.145 -1.718 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50652.42142.35423.67751.08511.08881.08884.36904.03084.0308
C21.50651.20941.35202.34472.12782.13492.13493.22512.64042.6404
O32.42141.20942.25672.63132.57273.11493.11493.68822.62252.6225
O42.35421.35202.25671.43443.27622.61732.61732.01592.08262.0826
C53.67752.34472.63131.43444.46503.97243.97241.08521.08781.0878
H61.08512.12782.57273.27624.46501.78301.78305.27584.68854.6885
H71.08882.13493.11492.61733.97241.78301.75964.51504.21304.5681
H81.08882.13493.11492.61733.97241.78301.75964.51504.56814.2130
H94.36903.22513.68822.01591.08525.27584.51504.51501.78631.7863
H104.03082.64042.62252.08261.08784.68854.21304.56811.78631.7717
H114.03082.64042.62252.08261.08784.68854.56814.21301.78631.7717

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 125.786 C1 C2 O4 110.775
C2 C1 H6 109.298 C2 C1 H7 109.646
C2 C1 H8 109.646 C2 O4 C5 114.563
O3 C2 O4 123.440 O4 C5 H9 105.442
O4 C5 H10 110.575 O4 C5 H11 110.575
H6 C1 H7 110.207 H6 C1 H8 110.207
H7 C1 H8 107.819 H9 C5 H10 110.586
H9 C5 H11 110.586 H10 C5 H11 109.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability