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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-266.754303
Energy at 298.15K-266.760696
HF Energy-266.754303
Nuclear repulsion energy 
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 B97D3/3-21G
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' 3135 3082 9.35      
2 A' 3128 3075 16.92      
3 A' 3023 2971 2.53      
4 A' 3010 2959 24.97      
5 A' 1718 1689 122.12      
6 A' 1533 1507 9.36      
7 A' 1502 1476 19.97      
8 A' 1452 1428 7.24      
9 A' 1406 1382 28.28      
10 A' 1193 1173 238.35      
11 A' 1153 1134 13.71      
12 A' 1017 1000 104.79      
13 A' 937 921 4.99      
14 A' 778 764 14.18      
15 A' 611 601 3.16      
16 A' 399 392 6.03      
17 A' 264 259 13.01      
18 A" 3084 3032 7.25      
19 A" 3080 3028 27.11      
20 A" 1514 1489 17.35      
21 A" 1513 1487 0.31      
22 A" 1129 1110 0.00      
23 A" 1073 1054 9.86      
24 A" 582 572 3.21      
25 A" 168 166 9.34      
26 A" 66 65 0.00      
27 A" 25 24 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 19245.8 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 18918.6 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 B97D3/3-21G
ABC
0.32144 0.13499 0.09862

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.173 1.490 0.000
C2 0.000 0.523 0.000
O3 -1.205 0.786 0.000
O4 0.498 -0.784 0.000
C5 -0.562 -1.831 0.000
H6 0.795 2.517 0.000
H7 1.795 1.311 0.887
H8 1.795 1.311 -0.887
H9 -0.009 -2.774 0.000
H10 -1.194 -1.738 0.893
H11 -1.194 -1.738 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.51982.47972.37183.74631.09391.09881.09884.42524.10084.1008
C21.51981.23311.39872.42002.14642.15192.15193.29772.70832.7083
O32.47971.23312.31562.69422.64553.17253.17253.75532.67672.6767
O42.37181.39872.31561.48953.31402.61862.61862.05432.13762.1376
C53.74632.42002.69421.48954.55444.02624.02621.09341.09771.0977
H61.09392.14642.64553.31404.55441.80071.80075.35214.78094.7809
H71.09882.15193.17252.61864.02621.80071.77484.55324.26954.6257
H81.09882.15193.17252.61864.02621.80071.77484.55324.62574.2695
H94.42523.29773.75532.05431.09345.35214.55324.55321.80941.8094
H104.10082.70832.67672.13761.09774.78094.26954.62571.80941.7851
H114.10082.70832.67672.13761.09774.78094.62574.26951.80941.7851

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 127.243 C1 C2 O4 108.815
C2 C1 H6 109.112 C2 C1 H7 110.319
C2 C1 H8 110.319 C2 O4 C5 116.156
O3 C2 O4 123.942 O4 C5 H9 106.270
O4 C5 H10 111.578 O4 C5 H11 111.578
H6 C1 H7 109.728 H6 C1 H8 109.728
H7 C1 H8 107.619 H9 C5 H10 109.899
H9 C5 H11 109.899 H10 C5 H11 107.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.650      
2 C 0.609      
3 O -0.474      
4 O -0.479      
5 C -0.370      
6 H 0.231      
7 H 0.238      
8 H 0.238      
9 H 0.216      
10 H 0.220      
11 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.203 -0.926 0.000 1.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.919 4.873 0.000
y 4.873 -25.939 0.000
z 0.000 0.000 -28.950
Traceless
 xyz
x -4.475 4.873 0.000
y 4.873 4.496 0.000
z 0.000 0.000 -0.021
Polar
3z2-r2-0.042
x2-y2-5.980
xy4.873
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.514 0.436 0.000
y 0.436 6.548 0.000
z 0.000 0.000 3.794


<r2> (average value of r2) Å2
<r2> 123.343
(<r2>)1/2 11.106