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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-266.937391
Energy at 298.15K-266.944473
Nuclear repulsion energy183.799713
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/6-311+G(3df,2p)
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' 3292 2991 15.62      
2 A' 3289 2989 20.95      
3 A' 3198 2906 39.03      
4 A' 3186 2895 4.00      
5 A' 1976 1796 367.07      
6 A' 1625 1476 7.52      
7 A' 1613 1466 28.95      
8 A' 1587 1442 14.04      
9 A' 1536 1396 79.25      
10 A' 1413 1284 424.23      
11 A' 1329 1207 5.44      
12 A' 1192 1083 80.85      
13 A' 1071 973 4.44      
14 A' 944 858 18.04      
15 A' 696 632 10.96      
16 A' 455 414 7.67      
17 A' 303 276 14.06      
18 A" 3271 2972 28.75      
19 A" 3246 2949 10.91      
20 A" 1613 1466 8.18      
21 A" 1597 1451 6.58      
22 A" 1291 1173 3.37      
23 A" 1173 1066 9.39      
24 A" 672 610 11.91      
25 A" 189 172 5.21      
26 A" 161 146 2.87      
27 A" 87 79 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 21002.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 19082.5 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/6-311+G(3df,2p)
ABC
0.35405 0.14054 0.10447

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.130 1.475 0.000
C2 0.000 0.485 0.000
O3 -1.148 0.767 0.000
O4 0.443 -0.759 0.000
C5 -0.520 -1.793 0.000
H6 0.734 2.477 0.000
H7 1.749 1.318 0.874
H8 1.749 1.318 -0.874
H9 0.036 -2.716 0.000
H10 -1.143 -1.732 0.880
H11 -1.143 -1.732 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50202.38522.33703.66071.07771.08231.08234.33134.02804.0280
C21.50201.18201.32052.33692.12242.12562.12563.20172.64532.6453
O32.38521.18202.20442.63632.54203.07593.07593.67932.64992.6499
O42.33701.32052.20441.41293.24872.60522.60521.99912.05812.0581
C53.66072.33692.63631.41294.45003.94923.94921.07781.07981.0798
H61.07772.12242.54203.24874.45001.77111.77115.23964.69164.6916
H71.08232.12563.07592.60523.94921.77111.74774.46974.20394.5550
H81.08232.12563.07592.60523.94921.77111.74774.46974.55504.2039
H94.33133.20173.67931.99911.07785.23964.46974.46971.77001.7700
H104.02802.64532.64992.05811.07984.69164.20394.55501.77001.7597
H114.02802.64532.64992.05811.07984.69164.55504.20391.77001.7597

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 124.986 C1 C2 O4 111.619
C2 C1 H6 109.613 C2 C1 H7 109.601
C2 C1 H8 109.601 C2 O4 C5 117.465
O3 C2 O4 123.396 O4 C5 H9 105.981
O4 C5 H10 110.599 O4 C5 H11 110.599
H6 C1 H7 110.158 H6 C1 H8 110.158
H7 C1 H8 107.683 H9 C5 H10 110.246
H9 C5 H11 110.246 H10 C5 H11 109.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 C 1.003      
3 O -0.873      
4 O -0.758      
5 C 0.138      
6 H 0.150      
7 H 0.144      
8 H 0.144      
9 H 0.122      
10 H 0.126      
11 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.807 -1.050 0.000 2.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.026 5.010 0.000
y 5.010 -26.671 0.000
z 0.000 0.000 -29.107
Traceless
 xyz
x -5.137 5.010 0.000
y 5.010 4.395 0.000
z 0.000 0.000 0.741
Polar
3z2-r21.483
x2-y2-6.355
xy5.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.350 0.319 0.000
y 0.319 6.916 0.000
z 0.000 0.000 4.969


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000