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

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-266.931021
Energy at 298.15K-266.938096
HF Energy-266.931021
Nuclear repulsion energy183.542780
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 HF/TZVP
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' 3303 3001 30.68      
2 A' 3302 3000 6.88      
3 A' 3206 2913 36.66      
4 A' 3196 2904 4.19      
5 A' 1981 1800 375.84      
6 A' 1626 1478 5.81      
7 A' 1614 1466 23.68      
8 A' 1590 1445 13.58      
9 A' 1538 1397 79.19      
10 A' 1412 1283 445.29      
11 A' 1330 1209 5.42      
12 A' 1192 1083 82.57      
13 A' 1072 974 6.04      
14 A' 944 858 20.14      
15 A' 696 632 10.64      
16 A' 458 416 7.27      
17 A' 303 275 14.36      
18 A" 3280 2980 31.80      
19 A" 3259 2961 11.24      
20 A" 1614 1466 7.03      
21 A" 1598 1452 7.74      
22 A" 1291 1173 3.64      
23 A" 1173 1066 9.49      
24 A" 666 605 14.71      
25 A" 192 174 5.43      
26 A" 162 147 3.70      
27 A" 80 73 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 21037.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 19114.8 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 HF/TZVP
ABC
0.35317 0.14013 0.10417

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.131 1.477 0.000
C2 0.000 0.488 0.000
O3 -1.150 0.767 0.000
O4 0.444 -0.760 0.000
C5 -0.520 -1.796 0.000
H6 0.733 2.479 0.000
H7 1.750 1.321 0.875
H8 1.750 1.321 -0.875
H9 0.037 -2.719 0.000
H10 -1.144 -1.736 0.881
H11 -1.144 -1.736 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.50282.38872.33983.66641.07881.08301.08304.33644.03434.0343
C21.50281.18321.32392.34252.12232.12672.12673.20712.65132.6513
O32.38871.18322.20702.63972.54443.07903.07903.68312.65382.6538
O42.33981.32392.20701.41583.25192.60802.60802.00132.06172.0617
C53.66642.34252.63971.41584.45563.95473.95471.07841.08071.0807
H61.07882.12232.54443.25194.45561.77261.77265.24494.69774.6977
H71.08302.12673.07902.60803.95471.77261.75024.47484.20984.5612
H81.08302.12673.07902.60803.95471.77261.75024.47484.56124.2098
H94.33643.20713.68312.00131.07845.24494.47484.47481.77141.7714
H104.03432.65132.65382.06171.08074.69774.20984.56121.77141.7613
H114.03432.65132.65382.06171.08074.69774.56124.20981.77141.7613

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 125.155 C1 C2 O4 111.582
C2 C1 H6 109.491 C2 C1 H7 109.596
C2 C1 H8 109.596 C2 O4 C5 117.481
O3 C2 O4 123.263 O4 C5 H9 105.920
O4 C5 H10 110.622 O4 C5 H11 110.622
H6 C1 H7 110.162 H6 C1 H8 110.162
H7 C1 H8 107.811 H9 C5 H10 110.252
H9 C5 H11 110.252 H10 C5 H11 109.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.305      
2 C 0.439      
3 O -0.434      
4 O -0.294      
5 C -0.038      
6 H 0.123      
7 H 0.110      
8 H 0.110      
9 H 0.100      
10 H 0.094      
11 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.761 -1.076 0.000 2.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.234 5.254 0.000
y 5.254 -26.565 0.000
z 0.000 0.000 -29.098
Traceless
 xyz
x -5.402 5.254 0.000
y 5.254 4.601 0.000
z 0.000 0.000 0.801
Polar
3z2-r21.603
x2-y2-6.669
xy5.254
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.970 0.116 0.000
y 0.116 6.251 0.000
z 0.000 0.000 4.635


<r2> (average value of r2) Å2
<r2> 118.586
(<r2>)1/2 10.890