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

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-268.284853
Energy at 298.15K-268.291607
HF Energy-267.966938
Nuclear repulsion energy181.749875
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 B2PLYP/cc-pVTZ
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' 3188 3059 6.50      
2 A' 3184 3055 13.32      
3 A' 3078 2953 6.81      
4 A' 3075 2951 24.11      
5 A' 1798 1725 224.81      
6 A' 1516 1454 8.68      
7 A' 1487 1427 20.09      
8 A' 1483 1422 10.30      
9 A' 1409 1351 48.22      
10 A' 1278 1226 326.54      
11 A' 1218 1169 1.19      
12 A' 1081 1037 78.30      
13 A' 993 952 1.73      
14 A' 860 825 20.07      
15 A' 647 621 5.69      
16 A' 425 408 5.96      
17 A' 286 274 11.79      
18 A" 3152 3024 19.54      
19 A" 3144 3016 4.85      
20 A" 1500 1439 9.08      
21 A" 1493 1432 6.39      
22 A" 1187 1138 1.32      
23 A" 1076 1032 5.69      
24 A" 611 586 5.21      
25 A" 180 173 6.27      
26 A" 139 133 0.49      
27 A" 45 44 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 19765.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18962.7 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 B2PLYP/cc-pVTZ
ABC
0.34153 0.13944 0.10279

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.130 1.469 0.000
C2 0.000 0.495 0.000
O3 -1.177 0.771 0.000
O4 0.477 -0.773 0.000
C5 -0.522 -1.788 0.000
H6 0.737 2.480 0.000
H7 1.754 1.319 0.879
H8 1.754 1.319 -0.879
H9 0.003 -2.739 0.000
H10 -1.152 -1.708 0.883
H11 -1.152 -1.708 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.49172.41042.33543.65191.08481.08841.08844.35574.00974.0097
C21.49171.20901.35562.34222.11732.12792.12793.23372.63792.6379
O32.41041.20902.26352.64212.56603.10883.10883.70292.63142.6314
O42.33541.35562.26351.42403.26382.60382.60382.02152.07542.0754
C53.65192.34222.64211.42404.45003.95033.95031.08551.08781.0878
H61.08482.11732.56603.26384.45001.77641.77645.26994.67814.6781
H71.08842.12793.10882.60383.95031.77641.75804.50554.19584.5507
H81.08842.12793.10882.60383.95031.77641.75804.50554.55074.1958
H94.35573.23373.70292.02151.08555.26994.50554.50551.78241.7824
H104.00972.63792.63142.07541.08784.67814.19584.55071.78241.7654
H114.00972.63792.63142.07541.08784.67814.55074.19581.78241.7654

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 126.057 C1 C2 O4 110.120
C2 C1 H6 109.512 C2 C1 H7 110.142
C2 C1 H8 110.142 C2 O4 C5 114.824
O3 C2 O4 123.822 O4 C5 H9 106.542
O4 C5 H10 110.723 O4 C5 H11 110.723
H6 C1 H7 109.649 H6 C1 H8 109.649
H7 C1 H8 107.724 H9 C5 H10 110.189
H9 C5 H11 110.189 H10 C5 H11 108.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 C 0.349      
3 O -0.354      
4 O -0.274      
5 C -0.089      
6 H 0.123      
7 H 0.114      
8 H 0.114      
9 H 0.110      
10 H 0.097      
11 H 0.097      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.524 0.445 0.000
y 0.445 7.408 0.000
z 0.000 0.000 4.957


<r2> (average value of r2) Å2
<r2> 119.723
(<r2>)1/2 10.942