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

using model chemistry: HF/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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-266.874186
Energy at 298.15K-266.881280
Nuclear repulsion energy182.590014
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 HF/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' 3312 3016 29.46      
2 A' 3311 3015 7.14      
3 A' 3209 2922 40.86      
4 A' 3195 2910 4.46      
5 A' 1962 1787 358.22      
6 A' 1597 1454 6.92      
7 A' 1590 1448 40.01      
8 A' 1564 1424 12.96      
9 A' 1518 1382 91.77      
10 A' 1401 1275 385.09      
11 A' 1313 1196 3.24      
12 A' 1181 1076 85.30      
13 A' 1065 969 5.23      
14 A' 938 854 17.44      
15 A' 692 630 11.73      
16 A' 453 412 8.04      
17 A' 304 277 14.32      
18 A" 3294 2999 28.85      
19 A" 3265 2973 11.24      
20 A" 1588 1446 8.52      
21 A" 1575 1434 6.02      
22 A" 1273 1159 3.13      
23 A" 1159 1056 9.00      
24 A" 667 607 11.76      
25 A" 192 175 4.26      
26 A" 164 149 3.88      
27 A" 93 85 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 20936.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 19064.4 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 HF/aug-cc-pVDZ
ABC
0.35086 0.13976 0.10382

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.121 1.488 0.000
C2 0.000 0.487 0.000
O3 -1.158 0.758 0.000
O4 0.455 -0.760 0.000
C5 -0.513 -1.800 0.000
H6 0.709 2.492 0.000
H7 1.745 1.336 0.880
H8 1.745 1.336 -0.880
H9 0.050 -2.727 0.000
H10 -1.138 -1.736 0.886
H11 -1.138 -1.736 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50342.39362.34533.67161.08461.08921.08924.34924.03594.0359
C21.50341.18981.32782.34322.12652.13062.13063.21412.65012.6501
O32.39361.18982.21622.63832.54783.08793.08793.68892.64752.6475
O42.34531.32782.21621.42033.26202.61382.61382.00782.06822.0682
C53.67162.34322.63831.42034.46183.96273.96271.08471.08661.0866
H61.08462.12652.54783.26204.46181.78391.78395.26004.69824.6982
H71.08922.13063.08792.61383.96271.78391.76024.48934.21314.5684
H81.08922.13063.08792.61383.96271.78391.76024.48934.56844.2131
H94.34923.21413.68892.00781.08475.26004.48934.48931.78291.7829
H104.03592.65012.64752.06821.08664.69824.21314.56841.78291.7725
H114.03592.65012.64752.06821.08664.69824.56844.21311.78291.7725

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 125.028 C1 C2 O4 111.714
C2 C1 H6 109.441 C2 C1 H7 109.491
C2 C1 H8 109.491 C2 O4 C5 116.966
O3 C2 O4 123.258 O4 C5 H9 105.772
O4 C5 H10 110.470 O4 C5 H11 110.470
H6 C1 H7 110.293 H6 C1 H8 110.293
H7 C1 H8 107.806 H9 C5 H10 110.399
H9 C5 H11 110.399 H10 C5 H11 109.293
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.273      
2 C 0.700      
3 O -0.685      
4 O -0.816      
5 C 0.871      
6 H -0.023      
7 H 0.032      
8 H 0.032      
9 H -0.245      
10 H -0.069      
11 H -0.069      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.827 -1.010 0.000 2.088
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.448 -3.117 0.000
y -3.117 -33.129 0.000
z 0.000 0.000 -29.252
Traceless
 xyz
x 0.743 -3.117 0.000
y -3.117 -3.279 0.000
z 0.000 0.000 2.536
Polar
3z2-r25.072
x2-y22.681
xy-3.117
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.165 -0.058 0.000
y -0.058 7.499 0.000
z 0.000 0.000 5.000


<r2> (average value of r2) Å2
<r2> 117.642
(<r2>)1/2 10.846