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

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-268.403435
Energy at 298.15K 
HF Energy-268.403435
Nuclear repulsion energy182.350932
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 wB97X-D/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' 3196 3055 5.66      
2 A' 3180 3040 14.56      
3 A' 3082 2946 2.65      
4 A' 3068 2933 28.01      
5 A' 1848 1766 265.67      
6 A' 1498 1432 18.10      
7 A' 1485 1420 16.95      
8 A' 1469 1405 12.68      
9 A' 1401 1339 84.36      
10 A' 1302 1245 323.08      
11 A' 1225 1171 1.11      
12 A' 1103 1054 60.90      
13 A' 998 954 1.83      
14 A' 879 840 18.08      
15 A' 655 626 6.28      
16 A' 430 411 6.32      
17 A' 290 277 12.01      
18 A" 3154 3015 4.82      
19 A" 3145 3007 19.45      
20 A" 1492 1426 9.86      
21 A" 1477 1412 7.51      
22 A" 1177 1125 1.17      
23 A" 1066 1019 7.63      
24 A" 608 581 5.17      
25 A" 174 167 5.51      
26 A" 96 92 1.28      
27 A" 139i 133i 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 19678.0 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 18812.1 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 wB97X-D/cc-pVTZ
ABC
0.34461 0.14004 0.10340

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 1.466 0.000
C2 0.000 0.492 0.000
O3 -1.170 0.767 0.000
O4 0.472 -0.770 0.000
C5 -0.520 -1.783 0.000
H6 0.733 2.477 0.000
H7 1.751 1.315 0.880
H8 1.751 1.315 -0.880
H9 0.009 -2.733 0.000
H10 -1.151 -1.703 0.884
H11 -1.151 -1.703 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.48942.40182.32983.64211.08581.08931.08934.34524.00204.0020
C21.48941.20231.34762.33362.11582.12562.12563.22532.63212.6321
O32.40181.20232.24922.63142.55873.10023.10023.69322.62402.6240
O42.32981.34762.24921.41723.25762.59982.59982.01692.07042.0704
C53.64212.33362.63141.41724.44023.94053.94051.08721.08951.0895
H61.08582.11582.55873.25764.44021.77851.77855.26034.66994.6699
H71.08932.12563.10022.59983.94051.77851.76054.49414.18724.5438
H81.08932.12563.10022.59983.94051.77851.76054.49414.54384.1872
H94.34523.22533.69322.01691.08725.26034.49414.49411.78501.7850
H104.00202.63212.62402.07041.08954.66994.18724.54381.78501.7689
H114.00202.63212.62402.07041.08954.66994.54384.18721.78501.7689

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 125.989 C1 C2 O4 110.314
C2 C1 H6 109.488 C2 C1 H7 110.061
C2 C1 H8 110.061 C2 O4 C5 115.118
O3 C2 O4 123.696 O4 C5 H9 106.541
O4 C5 H10 110.687 O4 C5 H11 110.687
H6 C1 H7 109.698 H6 C1 H8 109.698
H7 C1 H8 107.813 H9 C5 H10 110.186
H9 C5 H11 110.186 H10 C5 H11 108.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.232      
2 C 0.290      
3 O -0.321      
4 O -0.231      
5 C -0.057      
6 H 0.105      
7 H 0.097      
8 H 0.097      
9 H 0.089      
10 H 0.081      
11 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.623 -0.964 0.000 1.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.413 4.565 0.000
y 4.565 -26.384 0.000
z 0.000 0.000 -29.005
Traceless
 xyz
x -4.719 4.565 0.000
y 4.565 4.325 0.000
z 0.000 0.000 0.394
Polar
3z2-r20.787
x2-y2-6.029
xy4.565
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.494 0.414 0.000
y 0.414 7.285 0.000
z 0.000 0.000 4.972


<r2> (average value of r2) Å2
<r2> 119.038
(<r2>)1/2 10.910