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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-268.085344
Energy at 298.15K-268.091872
Nuclear repulsion energy180.092674
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3121 3103 3.76      
2 A 3103 3085 12.68      
3 A 3071 3053 3.34      
4 A 3057 3040 19.70      
5 A 2994 2977 2.75      
6 A 2976 2959 29.87      
7 A 1773 1763 202.58      
8 A 1420 1411 6.81      
9 A 1397 1389 15.66      
10 A 1396 1388 25.52      
11 A 1395 1387 2.90      
12 A 1389 1381 12.30      
13 A 1320 1312 63.24      
14 A 1219 1212 263.28      
15 A 1148 1142 3.91      
16 A 1116 1110 0.43      
17 A 1036 1030 64.04      
18 A 1006 1001 6.74      
19 A 947 941 1.86      
20 A 833 828 17.00      
21 A 627 624 4.66      
22 A 581 577 2.62      
23 A 409 406 5.58      
24 A 276 274 10.38      
25 A 179 178 5.39      
26 A 113 113 0.28      
27 A 25 25 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 18962.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18852.7 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 PBEPBE/cc-pVDZ
ABC
0.33279 0.13810 0.10139

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.806 -0.514 0.000
C2 -0.463 0.180 -0.000
O3 -0.276 1.385 -0.000
O4 0.548 -0.740 -0.000
C5 1.870 -0.164 0.000
H6 -2.610 0.241 -0.005
H7 -1.896 -1.172 -0.887
H8 -1.900 -1.162 0.894
H9 2.566 -1.021 -0.004
H10 2.025 0.470 -0.896
H11 2.027 0.463 0.901

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.51122.43882.36433.69221.10301.10801.10804.40104.05494.0566
C21.51121.21961.36702.35852.14752.16022.15983.25882.66012.6635
O32.43881.21962.27902.64662.59963.15433.15043.72382.63312.6394
O42.36431.36702.27901.44203.30652.63552.63992.03772.10862.1086
C53.69222.35852.64661.44204.49813.99814.00081.10431.10841.1085
H61.10302.14752.59963.30654.49811.81161.81125.32754.72494.7300
H71.10802.16023.15432.63553.99811.81161.78114.55114.25044.6108
H81.10802.15983.15042.63994.00081.81121.78114.55734.61184.2499
H94.40103.25883.72382.03771.10435.32754.55114.55731.82001.8195
H104.05492.66012.63312.10861.10844.72494.25044.61181.82001.7969
H114.05662.66352.63942.10861.10854.73004.61084.24991.81951.7969

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 126.188 C1 C2 O4 110.362
C2 C1 H6 109.471 C2 C1 H7 110.178
C2 C1 H8 110.137 C2 O4 C5 114.174
O3 C2 O4 123.450 O4 C5 H9 105.542
O4 C5 H10 110.859 O4 C5 H11 110.853
H6 C1 H7 110.049 H6 C1 H8 110.002
H7 C1 H8 106.976 H9 C5 H10 110.676
H9 C5 H11 110.628 H10 C5 H11 108.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 C 0.091      
3 O -0.223      
4 O -0.231      
5 C 0.067      
6 H 0.055      
7 H 0.064      
8 H 0.065      
9 H 0.043      
10 H 0.049      
11 H 0.049      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.305 -1.643 0.002 1.671
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.532 1.216 -0.002
y 1.216 -34.015 -0.002
z -0.002 -0.002 -29.098
Traceless
 xyz
x 7.024 1.216 -0.002
y 1.216 -7.200 -0.002
z -0.002 -0.002 0.176
Polar
3z2-r20.352
x2-y29.483
xy1.216
xz-0.002
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.515 0.061 0.000
y 0.061 5.965 0.000
z 0.000 0.000 4.516


<r2> (average value of r2) Å2
<r2> 121.026
(<r2>)1/2 11.001