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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-268.227199
Energy at 298.15K 
HF Energy-268.227199
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 B97D3/6-31G*
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' 3132 3071 11.15      
2 A' 3125 3064 21.31      
3 A' 3015 2956 10.97      
4 A' 3013 2954 28.06      
5 A' 1786 1751 203.31      
6 A' 1496 1466 7.49      
7 A' 1474 1445 14.30      
8 A' 1459 1430 6.98      
9 A' 1387 1359 32.26      
10 A' 1238 1214 308.53      
11 A' 1191 1167 1.26      
12 A' 1047 1026 84.45      
13 A' 969 950 1.17      
14 A' 834 818 17.41      
15 A' 629 617 3.99      
16 A' 415 407 5.88      
17 A' 277 272 11.33      
18 A" 3091 3030 28.83      
19 A" 3082 3022 8.68      
20 A" 1483 1454 6.57      
21 A" 1477 1448 6.00      
22 A" 1157 1134 0.63      
23 A" 1049 1029 7.19      
24 A" 588 576 4.64      
25 A" 175 172 6.25      
26 A" 124 122 0.28      
27 A" 19i 19i 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 19345.9 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 18966.7 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 B97D3/6-31G*
ABC
0.33337 0.13753 0.10109

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.147 1.489 0.000
C2 0.000 0.497 0.000
O3 -1.185 0.775 0.000
O4 0.480 -0.781 0.000
C5 -0.536 -1.808 0.000
H6 0.746 2.508 0.000
H7 1.780 1.336 0.885
H8 1.780 1.336 -0.885
H9 0.011 -2.756 0.000
H10 -1.169 -1.725 0.893
H11 -1.169 -1.725 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.51622.43892.36633.70181.09421.09901.09904.39504.06064.0606
C21.51621.21721.36542.36682.14412.15762.15763.25372.66472.6647
O32.43891.21722.27872.66322.59443.14493.14493.72832.65442.6544
O42.36631.36542.27871.44433.29922.63752.63752.03032.09892.0989
C53.70182.36682.66321.44434.50184.00404.00401.09461.09781.0978
H61.09422.14412.59443.29924.50181.79571.79575.31494.73024.7302
H71.09902.15763.14492.63754.00401.79571.77014.54554.25014.6070
H81.09902.15763.14492.63754.00401.79571.77014.54554.60704.2501
H94.39503.25373.72832.03031.09465.31494.54554.54551.80371.8037
H104.06062.66472.65442.09891.09784.73024.25014.60701.80371.7863
H114.06062.66472.65442.09891.09784.73024.60704.25011.80371.7863

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 126.024 C1 C2 O4 109.648
C2 C1 H6 109.459 C2 C1 H7 110.511
C2 C1 H8 110.511 C2 O4 C5 115.137
O3 C2 O4 124.327 O4 C5 H9 106.434
O4 C5 H10 110.833 O4 C5 H11 110.833
H6 C1 H7 109.445 H6 C1 H8 109.445
H7 C1 H8 107.437 H9 C5 H10 110.177
H9 C5 H11 110.177 H10 C5 H11 108.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.537      
2 C 0.574      
3 O -0.450      
4 O -0.422      
5 C -0.236      
6 H 0.187      
7 H 0.185      
8 H 0.185      
9 H 0.167      
10 H 0.173      
11 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.436 -0.980 0.000 1.739
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.843 4.444 0.000
y 4.444 -26.151 0.000
z 0.000 0.000 -28.739
Traceless
 xyz
x -4.398 4.444 0.000
y 4.444 4.140 0.000
z 0.000 0.000 0.257
Polar
3z2-r20.515
x2-y2-5.692
xy4.444
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.944 0.377 0.000
y 0.377 6.845 0.000
z 0.000 0.000 4.291


<r2> (average value of r2) Å2
<r2> 121.027
(<r2>)1/2 11.001