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

using model chemistry: BLYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-268.298474
Energy at 298.15K-268.304971
HF Energy-268.298474
Nuclear repulsion energy179.142323
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/6-31G*
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' 3100 3075 10.33      
2 A' 3095 3070 19.05      
3 A' 2992 2968 20.91      
4 A' 2991 2967 13.36      
5 A' 1754 1740 189.59      
6 A' 1485 1473 7.44      
7 A' 1466 1454 13.54      
8 A' 1445 1433 5.03      
9 A' 1377 1366 23.24      
10 A' 1215 1205 291.40      
11 A' 1176 1167 1.90      
12 A' 1027 1019 89.16      
13 A' 953 945 1.82      
14 A' 817 810 17.98      
15 A' 619 614 3.82      
16 A' 408 405 5.57      
17 A' 272 270 10.91      
18 A" 3059 3034 26.57      
19 A" 3048 3023 8.41      
20 A" 1471 1459 7.65      
21 A" 1469 1457 4.09      
22 A" 1143 1134 0.61      
23 A" 1041 1033 6.40      
24 A" 580 575 4.40      
25 A" 176 174 6.04      
26 A" 115 114 0.16      
27 A" 23 23 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 19156.8 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 19001.6 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/6-31G*
ABC
0.33015 0.13578 0.09986

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.165 1.471 0.000
C2 0.000 0.505 0.000
O3 -1.187 0.809 0.000
O4 0.467 -0.789 0.000
C5 -0.540 -1.815 0.000
H6 0.787 2.502 0.000
H7 1.799 1.315 0.888
H8 1.799 1.315 -0.888
H9 -0.008 -2.778 0.000
H10 -1.183 -1.740 0.893
H11 -1.183 -1.740 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.51272.44302.36483.70181.09831.10271.10274.40714.07594.0759
C21.51271.22551.37622.38262.14632.16382.16383.28292.68992.6899
O32.44301.22552.30062.70302.60073.15653.15653.77572.70092.7009
O42.36481.37622.30061.43833.30672.64382.64382.04462.10322.1032
C53.70182.38262.70301.43834.51674.00764.00761.09981.10241.1024
H61.09832.14632.60073.30674.51671.79521.79525.33924.76134.7613
H71.10272.16383.15652.64384.00761.79521.77654.56124.26874.6254
H81.10272.16383.15652.64384.00761.79521.77654.56124.62544.2687
H94.40713.28293.77572.04461.09985.33924.56124.56121.80371.8037
H104.07592.68992.70092.10321.10244.76134.26874.62541.80371.7858
H114.07592.68992.70092.10321.10244.76134.62544.26871.80371.7858

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 125.984 C1 C2 O4 109.798
C2 C1 H6 109.553 C2 C1 H7 110.672
C2 C1 H8 110.672 C2 O4 C5 115.656
O3 C2 O4 124.219 O4 C5 H9 106.569
O4 C5 H10 111.060 O4 C5 H11 111.060
H6 C1 H7 109.291 H6 C1 H8 109.291
H7 C1 H8 107.319 H9 C5 H10 109.985
H9 C5 H11 109.985 H10 C5 H11 108.187
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.480      
2 C 0.555      
3 O -0.438      
4 O -0.400      
5 C -0.196      
6 H 0.166      
7 H 0.166      
8 H 0.166      
9 H 0.148      
10 H 0.157      
11 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.415 -0.956 0.000 1.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.036 4.395 0.000
y 4.395 -26.405 0.000
z 0.000 0.000 -28.952
Traceless
 xyz
x -4.358 4.395 0.000
y 4.395 4.090 0.000
z 0.000 0.000 0.268
Polar
3z2-r20.537
x2-y2-5.632
xy4.395
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.989 0.407 0.000
y 0.407 6.972 0.000
z 0.000 0.000 4.298


<r2> (average value of r2) Å2
<r2> 122.402
(<r2>)1/2 11.064