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

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-268.125878
Energy at 298.15K-268.132573
HF Energy-268.125878
Nuclear repulsion energy181.827738
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 HSEh1PBE/6-31+G**
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' 3211 3066 4.10      
2 A' 3203 3058 12.14      
3 A' 3086 2947 3.31      
4 A' 3081 2942 29.07      
5 A' 1841 1758 288.49      
6 A' 1500 1433 10.20      
7 A' 1478 1411 34.94      
8 A' 1470 1404 14.96      
9 A' 1404 1340 87.02      
10 A' 1303 1244 313.96      
11 A' 1212 1157 0.77      
12 A' 1101 1051 56.58      
13 A' 998 952 1.33      
14 A' 879 840 19.31      
15 A' 652 622 6.15      
16 A' 425 406 5.78      
17 A' 285 272 13.72      
18 A" 3167 3024 17.51      
19 A" 3164 3021 2.87      
20 A" 1487 1419 11.03      
21 A" 1478 1411 9.82      
22 A" 1178 1125 0.85      
23 A" 1065 1017 7.54      
24 A" 611 584 5.45      
25 A" 185 176 7.91      
26 A" 128 122 0.35      
27 A" 29 27 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 19809.2 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 18913.8 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 HSEh1PBE/6-31+G**
ABC
0.34192 0.13964 0.10297

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.113 1.498 0.000
C2 0.000 0.491 0.000
O3 -1.183 0.746 0.000
O4 0.481 -0.766 0.000
C5 -0.504 -1.800 0.000
H6 0.692 2.503 0.000
H7 1.745 1.357 0.881
H8 1.745 1.357 -0.881
H9 0.052 -2.737 0.000
H10 -1.136 -1.728 0.889
H11 -1.136 -1.728 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50082.41542.35033.67311.08911.09361.09364.36554.03134.0313
C21.50081.20981.34572.34572.12742.13782.13783.22792.64632.6463
O32.41541.20982.24802.63452.56923.11763.11763.69482.62882.6288
O42.35031.34572.24801.42863.27532.62262.62262.01702.08092.0809
C53.67312.34572.63451.42864.46583.97483.97481.08941.09281.0928
H61.08912.12742.56923.27534.46581.78831.78835.27824.69334.6933
H71.09362.13783.11762.62263.97481.78831.76204.51634.22044.5765
H81.09362.13783.11762.62263.97481.78831.76204.51634.57654.2204
H94.36553.22793.69482.01701.08945.27824.51634.51631.79411.7941
H104.03132.64632.62882.08091.09284.69334.22044.57651.79411.7779
H114.03132.64632.62882.08091.09284.69334.57654.22041.79411.7779

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 125.687 C1 C2 O4 111.198
C2 C1 H6 109.432 C2 C1 H7 109.987
C2 C1 H8 109.987 C2 O4 C5 115.421
O3 C2 O4 123.115 O4 C5 H9 105.665
O4 C5 H10 110.538 O4 C5 H11 110.538
H6 C1 H7 110.034 H6 C1 H8 110.034
H7 C1 H8 107.343 H9 C5 H10 110.601
H9 C5 H11 110.601 H10 C5 H11 108.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.566      
2 C 0.416      
3 O -0.457      
4 O -0.280      
5 C -0.235      
6 H 0.200      
7 H 0.199      
8 H 0.199      
9 H 0.167      
10 H 0.179      
11 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.670 -0.993 0.000 1.943
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.114 4.928 0.000
y 4.928 -26.479 0.000
z 0.000 0.000 -29.383
Traceless
 xyz
x -5.183 4.928 0.000
y 4.928 4.769 0.000
z 0.000 0.000 0.414
Polar
3z2-r20.828
x2-y2-6.635
xy4.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.659 0.230 0.000
y 0.230 7.236 0.000
z 0.000 0.000 4.918


<r2> (average value of r2) Å2
<r2> 119.699
(<r2>)1/2 10.941