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

using model chemistry: BLYP/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-268.320114
Energy at 298.15K-268.326640
Nuclear repulsion energy179.651899
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(2df,p)
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 3091 3074 8.64      
2 A 3079 3063 16.86      
3 A 3043 3027 23.63      
4 A 3041 3025 5.92      
5 A 2983 2966 4.65      
6 A 2975 2958 28.00      
7 A 1749 1739 185.72      
8 A 1458 1450 7.01      
9 A 1441 1433 9.09      
10 A 1440 1432 1.29      
11 A 1435 1427 13.06      
12 A 1427 1419 5.92      
13 A 1351 1344 20.83      
14 A 1201 1194 277.21      
15 A 1170 1164 2.18      
16 A 1139 1133 0.98      
17 A 1030 1024 5.45      
18 A 1018 1013 88.33      
19 A 946 940 0.88      
20 A 814 809 16.77      
21 A 618 615 3.61      
22 A 585 582 3.90      
23 A 406 404 5.63      
24 A 271 269 10.17      
25 A 176 175 5.25      
26 A 111 111 0.25      
27 A 34 34 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 19015.6 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 18911.0 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(2df,p)
ABC
0.33209 0.13654 0.10044

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.812 -0.523 0.000
C2 -0.466 0.185 -0.001
O3 -0.287 1.389 -0.000
O4 0.551 -0.734 -0.002
C5 1.886 -0.164 0.001
H6 -2.615 0.222 -0.028
H7 -1.892 -1.195 -0.867
H8 -1.913 -1.145 0.903
H9 2.571 -1.021 0.003
H10 2.045 0.458 -0.892
H11 2.041 0.458 0.895

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.52152.44532.37293.71571.09591.10051.10084.41084.07844.0756
C21.52151.21651.37092.37752.14992.16572.16373.26702.67762.6759
O32.44531.21652.28252.67122.60363.16263.14263.73832.66492.6624
O42.37291.37092.28251.45153.30782.63272.65692.03952.10802.1083
C53.71572.37752.67121.45154.51784.01134.02581.09691.10001.1000
H61.09592.14992.60363.30784.51781.79901.79725.33264.74494.7526
H71.10052.16573.16262.63274.01131.79901.77144.54984.26944.6160
H81.10082.16373.14262.65694.02581.79721.77144.57444.63174.2664
H94.41083.26703.73832.03951.09695.33264.54984.57441.80701.8068
H104.07842.67762.66492.10801.10004.74494.26944.63171.80701.7873
H114.07562.67592.66242.10831.10004.75264.61604.26641.80681.7873

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 126.167 C1 C2 O4 110.134
C2 C1 H6 109.369 C2 C1 H7 110.339
C2 C1 H8 110.164 C2 O4 C5 114.750
O3 C2 O4 123.699 O4 C5 H9 105.471
O4 C5 H10 110.666 O4 C5 H11 110.691
H6 C1 H7 109.976 H6 C1 H8 109.796
H7 C1 H8 107.171 H9 C5 H10 110.676
H9 C5 H11 110.664 H10 C5 H11 108.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.444      
2 C 0.387      
3 O -0.315      
4 O -0.177      
5 C -0.219      
6 H 0.131      
7 H 0.134      
8 H 0.135      
9 H 0.115      
10 H 0.127      
11 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.325 -1.656 0.008 1.688
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.513 1.212 -0.007
y 1.212 -34.062 -0.008
z -0.007 -0.008 -28.853
Traceless
 xyz
x 6.945 1.212 -0.007
y 1.212 -7.379 -0.008
z -0.007 -0.008 0.434
Polar
3z2-r20.868
x2-y29.549
xy1.212
xz-0.007
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.587 -0.001 -0.002
y -0.001 6.017 -0.002
z -0.002 -0.002 4.627


<r2> (average value of r2) Å2
<r2> 121.838
(<r2>)1/2 11.038