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

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-268.356686
Energy at 298.15K-268.363382
Nuclear repulsion energy181.818065
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 mPW1PW91/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' 3208 3074 5.10      
2 A' 3199 3066 12.79      
3 A' 3081 2952 4.14      
4 A' 3077 2949 28.98      
5 A' 1826 1749 267.61      
6 A' 1474 1412 9.86      
7 A' 1457 1397 40.55      
8 A' 1445 1385 13.38      
9 A' 1382 1325 85.46      
10 A' 1286 1233 281.46      
11 A' 1203 1153 0.93      
12 A' 1094 1049 61.08      
13 A' 990 949 1.30      
14 A' 874 837 18.52      
15 A' 652 624 6.58      
16 A' 423 406 6.05      
17 A' 285 273 13.02      
18 A" 3165 3033 18.10      
19 A" 3159 3028 3.99      
20 A" 1462 1401 11.17      
21 A" 1453 1393 6.59      
22 A" 1167 1119 0.93      
23 A" 1052 1009 6.90      
24 A" 610 585 4.92      
25 A" 182 175 6.53      
26 A" 132 126 0.54      
27 A" 24 23 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 19680.7 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18860.0 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 mPW1PW91/aug-cc-pVDZ
ABC
0.34236 0.13967 0.10305

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.110 1.500 0.000
C2 0.000 0.491 0.000
O3 -1.181 0.743 0.000
O4 0.484 -0.766 0.000
C5 -0.504 -1.799 0.000
H6 0.684 2.506 0.000
H7 1.743 1.358 0.884
H8 1.743 1.358 -0.884
H9 0.052 -2.739 0.000
H10 -1.137 -1.725 0.892
H11 -1.137 -1.725 -0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50022.41312.35133.67271.09161.09641.09644.36934.03034.0303
C21.50021.20811.34692.34442.12792.13782.13783.23012.64502.6450
O32.41311.20812.24752.63022.56683.11623.11623.69372.62422.6242
O42.35131.34692.24751.42933.27802.62252.62252.01952.08342.0834
C53.67272.34442.63021.42934.46543.97433.97431.09231.09561.0956
H61.09162.12792.56683.27804.46541.79411.79415.28264.69134.6913
H71.09642.13783.11622.62253.97431.79411.76744.51944.21854.5768
H81.09642.13783.11622.62253.97431.79411.76744.51944.57684.2185
H94.36933.23013.69372.01951.09235.28264.51944.51941.79881.7988
H104.03032.64502.62422.08341.09564.69134.21854.57681.79881.7831
H114.03032.64502.62422.08341.09564.69134.57684.21851.79881.7831

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 125.658 C1 C2 O4 111.239
C2 C1 H6 109.363 C2 C1 H7 109.861
C2 C1 H8 109.861 C2 O4 C5 115.194
O3 C2 O4 123.103 O4 C5 H9 105.655
O4 C5 H10 110.519 O4 C5 H11 110.519
H6 C1 H7 110.163 H6 C1 H8 110.163
H7 C1 H8 107.410 H9 C5 H10 110.599
H9 C5 H11 110.599 H10 C5 H11 108.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.281      
2 C 0.583      
3 O -0.545      
4 O -0.555      
5 C 0.808      
6 H -0.074      
7 H -0.024      
8 H -0.024      
9 H -0.284      
10 H -0.084      
11 H -0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.696 -0.915 0.000 1.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.941 4.639 0.000
y 4.639 -26.569 0.000
z 0.000 0.000 -29.272
Traceless
 xyz
x -5.020 4.639 0.000
y 4.639 4.538 0.000
z 0.000 0.000 0.483
Polar
3z2-r20.965
x2-y2-6.372
xy4.639
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.091 0.454 0.000
y 0.454 7.962 0.000
z 0.000 0.000 5.408


<r2> (average value of r2) Å2
<r2> 119.614
(<r2>)1/2 10.937