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

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-267.693198
Energy at 298.15K-267.699986
HF Energy-266.869692
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 MP2/aug-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' 3222 3090 11.82      
2 A' 3217 3085 3.75      
3 A' 3090 2964 31.87      
4 A' 3088 2961 0.63      
5 A' 1766 1694 217.93      
6 A' 1489 1428 9.41      
7 A' 1463 1403 18.88      
8 A' 1456 1396 13.28      
9 A' 1386 1329 62.39      
10 A' 1266 1214 306.32      
11 A' 1200 1151 1.80      
12 A' 1070 1026 78.15      
13 A' 985 944 1.82      
14 A' 850 815 26.02      
15 A' 641 615 6.22      
16 A' 422 404 5.64      
17 A' 288 277 11.96      
18 A" 3189 3058 16.50      
19 A" 3178 3048 3.49      
20 A" 1480 1419 8.81      
21 A" 1470 1410 6.40      
22 A" 1170 1122 1.48      
23 A" 1053 1010 4.05      
24 A" 600 575 4.67      
25 A" 185 177 3.93      
26 A" 167 161 3.29      
27 A" 49 47 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 19719.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 18911.2 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/aug-cc-pVDZ
ABC
0.33487 0.13835 0.10170

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.113 1.513 0.000
C2 0.000 0.494 0.000
O3 -1.197 0.738 0.000
O4 0.504 -0.773 0.000
C5 -0.511 -1.806 0.000
H6 0.680 2.520 0.000
H7 1.745 1.370 0.889
H8 1.745 1.370 -0.889
H9 0.043 -2.752 0.000
H10 -1.140 -1.720 0.896
H11 -1.140 -1.720 -0.896

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50912.43682.36573.69521.09591.09991.09994.39704.04134.0413
C21.50911.22221.36342.35622.13752.14522.14523.24592.64662.6466
O32.43681.22222.27582.63582.58873.13803.13803.70412.61712.6171
O42.36571.36342.27581.44833.29782.63072.63072.03182.09862.0986
C53.69522.35622.63581.44834.48743.99563.99561.09561.09881.0988
H61.09592.13752.58873.29784.48741.80171.80175.31034.70074.7007
H71.09992.14523.13802.63073.99561.80171.77724.54674.22754.5888
H81.09992.14523.13802.63073.99561.80171.77724.54674.58884.2275
H94.39703.24593.70412.03181.09565.31034.54674.54671.80791.8079
H104.04132.64662.61712.09861.09884.70074.22754.58881.80791.7923
H114.04132.64662.61712.09861.09884.70074.58884.22751.80791.7923

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 125.975 C1 C2 O4 110.786
C2 C1 H6 109.248 C2 C1 H7 109.622
C2 C1 H8 109.622 C2 O4 C5 113.826
O3 C2 O4 123.240 O4 C5 H9 105.172
O4 C5 H10 110.210 O4 C5 H11 110.210
H6 C1 H7 110.276 H6 C1 H8 110.276
H7 C1 H8 107.777 H9 C5 H10 110.952
H9 C5 H11 110.952 H10 C5 H11 109.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability