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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-266.754496
Energy at 298.15K-266.761440
Nuclear repulsion energy179.964636
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/LANL2DZ
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' 3389 3049 28.50      
2 A' 3365 3028 16.86      
3 A' 3255 2930 40.60      
4 A' 3236 2912 8.02      
5 A' 1864 1677 327.49      
6 A' 1648 1483 10.32      
7 A' 1622 1460 30.36      
8 A' 1613 1451 18.51      
9 A' 1570 1413 39.27      
10 A' 1409 1268 442.15      
11 A' 1313 1182 0.37      
12 A' 1184 1065 92.82      
13 A' 1068 961 26.62      
14 A' 892 803 22.33      
15 A' 678 610 17.17      
16 A' 439 395 7.44      
17 A' 277 249 19.21      
18 A" 3354 3018 42.29      
19 A" 3322 2989 15.76      
20 A" 1641 1477 11.57      
21 A" 1628 1465 13.82      
22 A" 1277 1149 2.50      
23 A" 1203 1082 15.35      
24 A" 652 587 20.16      
25 A" 184 166 15.42      
26 A" 132 118 0.98      
27 A" 99 89 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 21156.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 19038.4 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/LANL2DZ
ABC
0.34035 0.13462 0.10002

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 1.511 0.000
C2 0.000 0.515 0.000
O3 -1.189 0.782 0.000
O4 0.453 -0.760 0.000
C5 -0.492 -1.862 0.000
H6 0.724 2.512 0.000
H7 1.743 1.358 0.874
H8 1.743 1.358 -0.874
H9 0.113 -2.751 0.000
H10 -1.113 -1.817 0.882
H11 -1.113 -1.817 -0.882

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50122.42432.36713.73911.07791.08191.08194.38004.10504.1050
C21.50121.21841.35282.42672.12422.12442.12443.26782.73002.7300
O32.42431.21842.25232.73332.57913.11313.11313.76492.74512.7451
O42.36711.35282.25231.45203.28272.62922.62922.02042.08552.0855
C53.73912.42672.73331.45204.53924.01594.01591.07581.07951.0795
H61.07792.12422.57913.28274.53921.76971.76975.29834.78434.7843
H71.08192.12443.11312.62924.01591.76971.74734.50674.27074.6175
H81.08192.12443.11312.62924.01591.76971.74734.50674.61754.2707
H94.38003.26783.76492.02041.07585.29834.50674.50671.77571.7757
H104.10502.73002.74512.08551.07954.78434.27074.61751.77571.7641
H114.10502.73002.74512.08551.07954.78434.61754.27071.77571.7641

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 125.787 C1 C2 O4 111.974
C2 C1 H6 109.814 C2 C1 H7 109.589
C2 C1 H8 109.589 C2 O4 C5 119.771
O3 C2 O4 122.239 O4 C5 H9 105.147
O4 C5 H10 110.069 O4 C5 H11 110.069
H6 C1 H7 110.054 H6 C1 H8 110.054
H7 C1 H8 107.710 H9 C5 H10 110.949
H9 C5 H11 110.949 H10 C5 H11 109.584
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.612      
2 C 0.571      
3 O -0.426      
4 O -0.500      
5 C -0.287      
6 H 0.214      
7 H 0.213      
8 H 0.213      
9 H 0.202      
10 H 0.207      
11 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.855 -1.210 0.000 2.215
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.478 -3.686 0.000
y -3.686 -33.127 0.000
z 0.000 0.000 -29.440
Traceless
 xyz
x -0.194 -3.686 0.000
y -3.686 -2.668 0.000
z 0.000 0.000 2.862
Polar
3z2-r25.724
x2-y21.649
xy-3.686
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.691 0.058 0.000
y 0.058 6.515 0.000
z 0.000 0.000 3.867


<r2> (average value of r2) Å2
<r2> 121.463
(<r2>)1/2 11.021