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

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-266.943361
Energy at 298.15K-266.950430
HF Energy-266.943361
Nuclear repulsion energy183.675851
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/daug-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' 3292 2978 13.88      
2 A' 3288 2975 22.67      
3 A' 3197 2892 39.28      
4 A' 3187 2883 4.12      
5 A' 1970 1782 366.16      
6 A' 1623 1468 7.78      
7 A' 1612 1458 27.65      
8 A' 1586 1435 13.94      
9 A' 1535 1389 77.74      
10 A' 1412 1277 424.67      
11 A' 1327 1200 5.29      
12 A' 1192 1078 81.96      
13 A' 1071 969 4.84      
14 A' 942 852 17.85      
15 A' 694 627 10.89      
16 A' 454 411 7.65      
17 A' 303 274 13.99      
18 A" 3269 2957 29.10      
19 A" 3247 2937 10.69      
20 A" 1612 1458 8.03      
21 A" 1597 1445 6.31      
22 A" 1289 1166 3.40      
23 A" 1174 1062 8.97      
24 A" 671 607 11.76      
25 A" 189 171 5.05      
26 A" 161 146 2.92      
27 A" 89 81 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 20990.2 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 18987.8 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 HF/daug-cc-pVTZ
ABC
0.35354 0.14038 0.10434

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 1.477 0.000
C2 0.000 0.486 0.000
O3 -1.150 0.766 0.000
O4 0.445 -0.759 0.000
C5 -0.518 -1.795 0.000
H6 0.730 2.479 0.000
H7 1.748 1.321 0.874
H8 1.748 1.321 -0.874
H9 0.038 -2.718 0.000
H10 -1.142 -1.734 0.880
H11 -1.142 -1.734 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50222.38692.33873.66311.07771.08231.08234.33454.02994.0299
C21.50221.18351.32212.33872.12232.12522.12523.20392.64672.6467
O32.38691.18352.20652.63742.54323.07713.07713.68082.65042.6504
O42.33871.32212.20651.41413.25042.60592.60592.00042.05922.0592
C53.66312.33872.63741.41414.45203.95093.95091.07781.07981.0798
H61.07772.12232.54323.25044.45201.77141.77145.24234.69304.6930
H71.08232.12523.07712.60593.95091.77141.74794.47244.20524.5562
H81.08232.12523.07712.60593.95091.77141.74794.47244.55624.2052
H94.33453.20393.68082.00041.07785.24234.47244.47241.77001.7700
H104.02992.64672.65042.05921.07984.69304.20524.55621.77001.7597
H114.02992.64672.65042.05921.07984.69304.55624.20521.77001.7597

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 125.012 C1 C2 O4 111.642
C2 C1 H6 109.601 C2 C1 H7 109.560
C2 C1 H8 109.560 C2 O4 C5 117.424
O3 C2 O4 123.346 O4 C5 H9 105.999
O4 C5 H10 110.600 O4 C5 H11 110.600
H6 C1 H7 110.190 H6 C1 H8 110.190
H7 C1 H8 107.712 H9 C5 H10 110.242
H9 C5 H11 110.242 H10 C5 H11 109.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.854      
2 C 1.254      
3 O -1.351      
4 O -1.114      
5 C -1.334      
6 H 0.464      
7 H 0.464      
8 H 0.464      
9 H 0.607      
10 H 0.700      
11 H 0.700      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.812 -1.041 0.000 2.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.996 4.958 0.000
y 4.958 -26.672 0.000
z 0.000 0.000 -29.118
Traceless
 xyz
x -5.101 4.958 0.000
y 4.958 4.385 0.000
z 0.000 0.000 0.717
Polar
3z2-r21.433
x2-y2-6.324
xy4.958
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.430 0.332 0.000
y 0.332 7.009 0.000
z 0.000 0.000 5.072


<r2> (average value of r2) Å2
<r2> 118.402
(<r2>)1/2 10.881