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

using model chemistry: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-268.382715
Energy at 298.15K-268.389253
Nuclear repulsion energy179.403606
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 BLYP/6-311G**
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 3078 3066 24.91      
2 A 3077 3065 3.45      
3 A 3036 3024 27.66      
4 A 3034 3022 8.75      
5 A 2976 2964 6.01      
6 A 2971 2960 28.03      
7 A 1733 1726 213.09      
8 A 1461 1455 8.13      
9 A 1443 1438 14.65      
10 A 1442 1436 2.91      
11 A 1439 1433 14.79      
12 A 1424 1419 8.42      
13 A 1354 1349 30.14      
14 A 1191 1186 287.65      
15 A 1166 1162 2.37      
16 A 1131 1127 0.64      
17 A 1031 1027 7.35      
18 A 1008 1004 94.88      
19 A 941 937 3.49      
20 A 809 806 22.54      
21 A 620 618 3.46      
22 A 582 580 4.27      
23 A 409 408 5.38      
24 A 272 271 10.97      
25 A 176 175 6.68      
26 A 105 104 0.31      
27 A 42 42 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 18974.6 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 18900.6 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 BLYP/6-311G**
ABC
0.33284 0.13557 0.09998

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.814 -0.528 0.003
C2 0.469 0.183 -0.009
O3 0.297 1.387 -0.001
O4 -0.555 -0.732 -0.012
C5 -1.897 -0.159 0.008
H6 2.606 0.194 -0.222
H7 1.992 -0.959 0.999
H8 1.826 -1.351 -0.722
H9 -2.575 -1.018 0.004
H10 -2.043 0.449 0.910
H11 -2.060 0.470 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.52082.44252.37843.72911.09461.09991.09754.41614.08094.0957
C21.52081.21641.37352.39092.14722.15382.16863.27242.68842.6891
O32.44251.21642.28382.68422.60813.06223.21793.74602.68072.6764
O42.37841.37352.28381.45853.30082.75032.56152.03952.11122.1105
C53.72912.39092.68421.45854.52244.09223.97691.09401.09791.0978
H61.09462.14722.60813.30084.52241.78831.80115.32534.79174.7193
H71.09992.15383.06222.75034.09221.78831.77304.67424.27494.6880
H81.09752.16863.21792.56153.97691.80111.77304.47304.56924.2943
H94.41613.27243.74602.03951.09405.32534.67424.47301.80441.8044
H104.08092.68842.68072.11121.09794.79174.27494.56921.80441.7869
H114.09572.68912.67642.11051.09784.71934.68804.29431.80441.7869

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 125.970 C1 C2 O4 110.416
C2 C1 H6 109.283 C2 C1 H7 109.487
C2 C1 H8 110.805 C2 O4 C5 115.150
O3 C2 O4 123.608 O4 C5 H9 105.176
O4 C5 H10 110.564 O4 C5 H11 110.505
H6 C1 H7 109.148 H6 C1 H8 110.504
H7 C1 H8 107.579 H9 C5 H10 110.811
H9 C5 H11 110.817 H10 C5 H11 108.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 C 0.268      
3 O -0.312      
4 O -0.297      
5 C -0.115      
6 H 0.129      
7 H 0.130      
8 H 0.126      
9 H 0.115      
10 H 0.117      
11 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.409 -1.646 0.064 1.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.625 -1.315 0.054
y -1.315 -35.037 -0.057
z 0.054 -0.057 -29.505
Traceless
 xyz
x 7.646 -1.315 0.054
y -1.315 -7.972 -0.057
z 0.054 -0.057 0.326
Polar
3z2-r20.651
x2-y210.412
xy-1.315
xz0.054
yz-0.057


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.707 -0.045 0.013
y -0.045 6.202 -0.010
z 0.013 -0.010 4.716


<r2> (average value of r2) Å2
<r2> 122.638
(<r2>)1/2 11.074