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

using model chemistry: wB97X-D/TZVP

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/TZVP
 hartrees
Energy at 0K-268.400098
Energy at 298.15K 
HF Energy-268.400098
Nuclear repulsion energy182.122898
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/TZVP
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' 3201 3057 5.38      
2 A' 3189 3046 13.93      
3 A' 3086 2947 2.41      
4 A' 3072 2934 27.01      
5 A' 1847 1764 287.09      
6 A' 1499 1432 15.56      
7 A' 1490 1423 16.84      
8 A' 1474 1408 13.59      
9 A' 1407 1344 80.36      
10 A' 1303 1244 340.42      
11 A' 1227 1172 0.99      
12 A' 1103 1053 61.40      
13 A' 1001 955 1.82      
14 A' 879 839 20.89      
15 A' 657 628 5.67      
16 A' 435 415 5.80      
17 A' 292 279 12.67      
18 A" 3160 3018 4.75      
19 A" 3150 3008 20.02      
20 A" 1495 1428 10.18      
21 A" 1480 1413 9.87      
22 A" 1181 1128 0.91      
23 A" 1068 1020 7.73      
24 A" 607 580 6.40      
25 A" 183 174 5.77      
26 A" 122 116 2.19      
27 A" 123i 117i 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 19742.2 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 18853.8 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/TZVP
ABC
0.34409 0.13952 0.10309

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 1.467 0.000
C2 0.000 0.494 0.000
O3 -1.171 0.771 0.000
O4 0.470 -0.770 0.000
C5 -0.520 -1.788 0.000
H6 0.735 2.480 0.000
H7 1.754 1.316 0.882
H8 1.754 1.316 -0.882
H9 0.013 -2.737 0.000
H10 -1.152 -1.711 0.886
H11 -1.152 -1.711 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.49032.40332.33243.64861.08721.09061.09064.34944.01114.0111
C21.49031.20311.34922.34062.11692.12772.12773.23122.64132.6413
O32.40331.20312.25092.64022.55963.10273.10273.70202.63572.6357
O42.33241.34922.25091.41923.26092.60362.60362.01882.07342.0734
C53.64862.34062.64021.41924.44813.94703.94701.08821.09081.0908
H61.08722.11692.55963.26094.44811.78021.78025.26634.68074.6807
H71.09062.12773.10272.60363.94701.78021.76314.49814.19594.5529
H81.09062.12773.10272.60363.94701.78021.76314.49814.55294.1959
H94.34943.23123.70202.01881.08825.26634.49814.49811.78661.7866
H104.01112.64132.63572.07341.09084.68074.19594.55291.78661.7717
H114.01112.64132.63572.07341.09084.68074.55294.19591.78661.7717

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 125.989 C1 C2 O4 110.355
C2 C1 H6 109.438 C2 C1 H7 110.091
C2 C1 H8 110.091 C2 O4 C5 115.429
O3 C2 O4 123.656 O4 C5 H9 106.506
O4 C5 H10 110.711 O4 C5 H11 110.711
H6 C1 H7 109.666 H6 C1 H8 109.666
H7 C1 H8 107.867 H9 C5 H10 110.154
H9 C5 H11 110.154 H10 C5 H11 108.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C 0.288      
3 O -0.337      
4 O -0.211      
5 C -0.189      
6 H 0.155      
7 H 0.146      
8 H 0.146      
9 H 0.133      
10 H 0.134      
11 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.620 -1.013 0.000 1.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.890 4.900 0.000
y 4.900 -26.420 0.000
z 0.000 0.000 -29.125
Traceless
 xyz
x -5.118 4.900 0.000
y 4.900 4.588 0.000
z 0.000 0.000 0.530
Polar
3z2-r21.061
x2-y2-6.471
xy4.900
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.485 0.206 0.000
y 0.206 7.013 0.000
z 0.000 0.000 4.944


<r2> (average value of r2) Å2
<r2> 119.487
(<r2>)1/2 10.931