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

using model chemistry: BLYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-268.323286
Energy at 298.15K-268.329823
Nuclear repulsion energy178.383349
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/6-31+G**
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 3095 3079 17.84      
2 A 3094 3077 3.66      
3 A 3062 3045 20.95      
4 A 3047 3031 7.00      
5 A 2987 2971 35.37      
6 A 2985 2969 1.48      
7 A 1715 1706 253.29      
8 A 1460 1452 8.87      
9 A 1447 1440 14.50      
10 A 1446 1438 3.54      
11 A 1440 1433 16.77      
12 A 1425 1417 7.55      
13 A 1360 1353 27.38      
14 A 1200 1194 307.33      
15 A 1166 1160 0.77      
16 A 1132 1126 0.71      
17 A 1031 1025 7.03      
18 A 1013 1008 86.30      
19 A 943 938 4.45      
20 A 808 803 23.56      
21 A 615 612 3.47      
22 A 581 578 4.35      
23 A 409 406 4.98      
24 A 269 267 12.49      
25 A 178 177 7.78      
26 A 122 122 0.51      
27 A 36 36 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 19032.5 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 18931.7 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/6-31+G**
ABC
0.33076 0.13471 0.09935

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.817 -0.531 0.003
C2 -0.472 0.178 -0.008
O3 -0.302 1.393 -0.001
O4 0.560 -0.730 -0.011
C5 1.904 -0.159 0.007
H6 -2.614 0.197 -0.193
H7 -1.842 -1.337 -0.746
H8 -1.983 -0.992 0.991
H9 2.580 -1.022 -0.000
H10 2.063 0.472 -0.880
H11 2.050 0.446 0.914

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.52052.44912.38533.74031.09701.10041.10264.42524.10414.0915
C21.52051.22681.37502.40062.14952.17142.15603.28042.69732.6989
O32.44911.22682.29172.69752.60983.22153.08173.76062.68622.6955
O42.38531.37502.29171.46133.31132.58332.74522.04182.11202.1122
C53.74032.40062.69751.46134.53663.99844.09541.09661.09971.0998
H61.09702.14952.60983.31134.53661.80441.79285.33914.73524.7999
H71.10042.17143.22152.58333.99841.80441.77614.49564.30564.5911
H81.10262.15603.08172.74524.09541.79281.77614.66974.69174.2822
H94.42523.28043.76062.04181.09665.33914.49564.66971.80921.8091
H104.10412.69732.68622.11201.09974.73524.30564.69171.80921.7940
H114.09152.69892.69552.11221.09984.79994.59114.28221.80911.7940

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 125.778 C1 C2 O4 110.835
C2 C1 H6 109.350 C2 C1 H7 110.872
C2 C1 H8 109.527 C2 O4 C5 115.601
O3 C2 O4 123.383 O4 C5 H9 105.027
O4 C5 H10 110.317 O4 C5 H11 110.321
H6 C1 H7 110.404 H6 C1 H8 109.193
H7 C1 H8 107.459 H9 C5 H10 110.921
H9 C5 H11 110.901 H10 C5 H11 109.301
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.535      
2 C 0.458      
3 O -0.448      
4 O -0.277      
5 C -0.201      
6 H 0.177      
7 H 0.175      
8 H 0.179      
9 H 0.147      
10 H 0.162      
11 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.419 -1.848 0.049 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.287 -3.005 0.000
y -3.005 -32.943 0.000
z 0.000 0.000 -29.964
Traceless
 xyz
x 0.167 -3.005 0.000
y -3.005 -2.318 0.000
z 0.000 0.000 2.151
Polar
3z2-r24.302
x2-y21.656
xy-3.005
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> 122.363
(<r2>)1/2 11.062