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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-268.374470
Energy at 298.15K-268.381015
Nuclear repulsion energy178.837951
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 3082 3075 25.51      
2 A 3079 3071 10.52      
3 A 3044 3036 31.24      
4 A 3032 3024 11.69      
5 A 2978 2970 33.16      
6 A 2977 2969 4.03      
7 A 1735 1731 212.23      
8 A 1477 1473 8.66      
9 A 1461 1457 10.74      
10 A 1457 1454 7.81      
11 A 1456 1452 16.04      
12 A 1436 1433 7.97      
13 A 1367 1364 30.43      
14 A 1195 1192 284.25      
15 A 1177 1174 1.08      
16 A 1141 1138 0.57      
17 A 1039 1036 6.90      
18 A 1014 1011 100.44      
19 A 944 942 3.76      
20 A 810 808 22.88      
21 A 620 619 3.32      
22 A 584 582 4.37      
23 A 409 408 5.37      
24 A 272 271 10.89      
25 A 177 176 6.55      
26 A 117 117 0.34      
27 A 36 36 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 19057.8 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 19010.2 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
0.33259 0.13564 0.10000

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 -1.813 -0.527 0.003
C2 -0.469 0.184 -0.008
O3 -0.297 1.388 -0.001
O4 0.556 -0.731 -0.011
C5 1.896 -0.160 0.007
H6 -2.611 0.197 -0.189
H7 -1.840 -1.329 -0.748
H8 -1.980 -0.994 0.985
H9 2.573 -1.020 0.002
H10 2.058 0.468 -0.878
H11 2.045 0.447 0.909

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.52102.44282.37773.72711.09481.09811.10034.41374.09334.0807
C21.52101.21631.37362.38962.14992.17132.15823.27122.68792.6881
O32.44281.21632.28412.68422.60903.21203.07883.74612.67652.6824
O42.37771.37362.28411.45673.30482.57652.73722.03782.10912.1094
C53.72712.38962.68421.45674.52523.98594.08381.09421.09751.0976
H61.09482.14992.60903.30484.52521.79881.78765.32834.72754.7897
H71.09812.17133.21202.57653.98591.79881.77044.48654.29394.5808
H81.10032.15823.07882.73724.08381.78761.77044.65834.68194.2758
H94.41373.27123.74612.03781.09425.32834.48654.65831.80371.8036
H104.09332.68792.67652.10911.09754.72754.29394.68191.80371.7875
H114.08072.68812.68242.10941.09764.78974.58084.27581.80361.7875

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 125.997 C1 C2 O4 110.356
C2 C1 H6 109.468 C2 C1 H7 110.967
C2 C1 H8 109.798 C2 O4 C5 115.160
O3 C2 O4 123.643 O4 C5 H9 105.156
O4 C5 H10 110.541 O4 C5 H11 110.555
H6 C1 H7 110.232 H6 C1 H8 109.053
H7 C1 H8 107.279 H9 C5 H10 110.768
H9 C5 H11 110.745 H10 C5 H11 109.043
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.647      
2 C 0.357      
3 O -0.312      
4 O -0.279      
5 C -0.421      
6 H 0.225      
7 H 0.222      
8 H 0.225      
9 H 0.207      
10 H 0.211      
11 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.422 -1.652 0.055 1.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.867 -2.672 0.000
y -2.672 -32.008 0.000
z 0.000 0.000 -29.599
Traceless
 xyz
x -0.063 -2.672 0.000
y -2.672 -1.775 0.000
z 0.000 0.000 1.838
Polar
3z2-r23.676
x2-y21.141
xy-2.672
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 121.553
(<r2>)1/2 11.025