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All results from a given calculation for C4H8O2 (Ethyl acetate)

using model chemistry: B2PLYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-307.589311
Energy at 298.15K 
HF Energy-307.207548
Nuclear repulsion energy243.713433
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 B2PLYP/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP/daug-cc-pVTZ
ABC
0.28183 0.06977 0.05772

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.309 0.029 0.000
C2 -0.910 -0.519 0.000
O3 0.000 0.479 0.000
O4 -0.613 -1.691 0.000
C5 1.385 0.067 0.000
C6 2.229 1.319 0.000
H7 -3.019 -0.790 0.000
H8 -2.461 0.655 0.878
H9 -2.461 0.655 -0.878
H10 1.565 -0.549 0.880
H11 1.565 -0.549 -0.880
H12 3.285 1.049 0.000
H13 2.029 1.922 -0.883
H14 2.029 1.922 0.883

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50322.35282.41583.69474.71841.08401.08831.08834.01484.01485.68624.81524.8152
C21.50321.35061.20882.36853.63762.12652.13392.13392.62652.62654.47793.92133.9213
O32.35281.35062.25501.44532.38233.27502.61862.61862.06892.06893.33372.64192.6419
O42.41581.20882.25502.66114.13972.56883.11223.11222.61162.61164.76434.56244.5624
C53.69472.36851.44532.66111.51024.48663.98853.98851.08871.08872.13852.15372.1537
C64.71843.63762.38234.13971.51025.65634.81774.81772.16912.16911.08911.08841.0884
H71.08402.12653.27502.56884.48665.65631.78041.78044.67374.67376.56645.79835.7983
H81.08832.13392.61863.11223.98854.81771.78041.75564.20194.55465.82554.98674.6654
H91.08832.13392.61863.11223.98854.81771.78041.75564.55464.20195.82554.66544.9867
H104.01482.62652.06892.61161.08872.16914.67374.20194.55461.75932.50713.07112.5147
H114.01482.62652.06892.61161.08872.16914.67374.55464.20191.75932.50712.51473.0711
H125.68624.47793.33374.76432.13851.08916.56645.82555.82552.50712.50711.76611.7661
H134.81523.92132.64194.56242.15371.08845.79834.98674.66543.07112.51471.76611.7666
H144.81523.92132.64194.56242.15371.08845.79834.66544.98672.51473.07111.76611.7666

picture of Ethyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 110.952 C1 C2 O4 125.602
C2 C1 H7 109.490 C2 C1 H8 109.825
C2 C1 H9 109.825 C2 O3 C5 115.755
O3 C2 O4 123.446 O3 C5 C6 107.400
O3 C5 H10 108.646 O3 C5 H11 108.646
C5 C6 H12 109.648 C5 C6 H13 110.906
C5 C6 H14 110.906 C6 C5 H10 112.130
C6 C5 H11 112.130 H7 C1 H8 110.080
H7 C1 H9 110.080 H8 C1 H9 107.517
H10 C5 H11 107.792 H12 C6 H13 108.402
H12 C6 H14 108.402 H13 C6 H14 108.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.595      
2 C 0.875      
3 O -0.061      
4 O -1.331      
5 C -0.422      
6 C -0.998      
7 H 0.366      
8 H 0.208      
9 H 0.208      
10 H 0.412      
11 H 0.412      
12 H 0.323      
13 H 0.301      
14 H 0.301      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.318 2.019 0.000 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.947 -1.051 0.000
y -1.051 -43.470 0.000
z 0.000 0.000 -36.011
Traceless
 xyz
x 8.793 -1.051 0.000
y -1.051 -9.991 0.000
z 0.000 0.000 1.198
Polar
3z2-r22.396
x2-y212.523
xy-1.051
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> 201.459
(<r2>)1/2 14.194