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

using model chemistry: HF/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/cc-pVDZ
 hartrees
Energy at 0K-266.857596
Energy at 298.15K-266.864689
Nuclear repulsion energy183.257388
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/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' 3326 3020 31.55      
2 A' 3326 3020 4.08      
3 A' 3217 2921 37.47      
4 A' 3207 2912 4.58      
5 A' 2010 1825 355.21      
6 A' 1605 1457 4.45      
7 A' 1594 1448 44.69      
8 A' 1565 1421 12.92      
9 A' 1522 1382 119.48      
10 A' 1412 1282 396.51      
11 A' 1317 1196 3.78      
12 A' 1191 1081 80.43      
13 A' 1070 971 4.70      
14 A' 947 860 18.47      
15 A' 697 633 12.65      
16 A' 454 412 8.09      
17 A' 305 277 13.07      
18 A" 3305 3001 31.66      
19 A" 3283 2981 9.38      
20 A" 1590 1443 6.56      
21 A" 1575 1430 6.91      
22 A" 1274 1157 3.60      
23 A" 1164 1057 11.71      
24 A" 665 604 12.73      
25 A" 188 170 6.23      
26 A" 161 146 1.99      
27 A" 99 89 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 21033.0 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 19098.0 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 HF/cc-pVDZ
ABC
0.35105 0.14034 0.10416

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 1.478 0.000
C2 0.000 0.488 0.000
O3 -1.154 0.763 0.000
O4 0.451 -0.761 0.000
C5 -0.520 -1.792 0.000
H6 0.727 2.488 0.000
H7 1.752 1.319 0.880
H8 1.752 1.319 -0.880
H9 0.037 -2.725 0.000
H10 -1.148 -1.729 0.886
H11 -1.148 -1.729 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50172.39162.33973.66271.08611.09031.09034.34304.03184.0318
C21.50171.18621.32762.33852.12822.12982.12983.21282.64882.6488
O32.39161.18622.21332.63282.55193.08683.08683.68552.64462.6446
O42.33971.32762.21331.41663.26052.60662.60662.00732.06902.0690
C53.66272.33852.63281.41664.45803.95213.95211.08601.08831.0883
H61.08612.12822.55193.26054.45801.78621.78625.25834.69914.6991
H71.09032.12983.08682.60663.95211.78621.75994.48044.20764.5632
H81.09032.12983.08682.60663.95211.78621.75994.48044.56324.2076
H94.34303.21283.68552.00731.08605.25834.48044.48041.78381.7838
H104.03182.64882.64462.06901.08834.69914.20764.56321.78381.7724
H114.03182.64882.64462.06901.08834.69914.56324.20761.78381.7724

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 125.283 C1 C2 O4 111.425
C2 C1 H6 109.605 C2 C1 H7 109.482
C2 C1 H8 109.482 C2 O4 C5 116.858
O3 C2 O4 123.292 O4 C5 H9 105.901
O4 C5 H10 110.692 O4 C5 H11 110.692
H6 C1 H7 110.312 H6 C1 H8 110.312
H7 C1 H8 107.617 H9 C5 H10 110.251
H9 C5 H11 110.251 H10 C5 H11 109.029
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002 -0.401    
2 C 0.309 0.110    
3 O -0.367 0.112    
4 O -0.433 0.112    
5 C 0.173 0.014    
6 H 0.061 0.014    
7 H 0.063 0.165    
8 H 0.063 -0.490    
9 H 0.046 -0.617    
10 H 0.043 0.918    
11 H 0.043 0.065    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.658 -1.014 0.000 1.943
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.686 4.848 0.000
y 4.848 -26.485 0.000
z 0.000 0.000 -28.940
Traceless
 xyz
x -4.974 4.848 0.000
y 4.848 4.329 0.000
z 0.000 0.000 0.645
Polar
3z2-r21.291
x2-y2-6.202
xy4.848
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.513 0.260 0.000
y 0.260 5.990 0.000
z 0.000 0.000 4.198


<r2> (average value of r2) Å2
<r2> 117.321
(<r2>)1/2 10.832