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

using model chemistry: B2PLYP/daug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-307.451338
Energy at 298.15K 
HF Energy-307.128234
Nuclear repulsion energy242.610354
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-pVDZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP/daug-cc-pVDZ
ABC
0.27924 0.06926 0.05729

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.319 0.032 0.000
C2 -0.914 -0.517 0.000
O3 0.000 0.485 0.000
O4 -0.616 -1.696 0.000
C5 1.389 0.064 0.000
C6 2.241 1.317 0.000
H7 -3.031 -0.796 0.000
H8 -2.472 0.662 0.885
H9 -2.472 0.662 -0.885
H10 1.566 -0.556 0.887
H11 1.566 -0.556 -0.887
H12 3.302 1.038 0.000
H13 2.042 1.925 -0.891
H14 2.042 1.925 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50792.36282.42633.70814.73741.09241.09691.09694.02774.02775.71074.83734.8373
C21.50791.35671.21642.37563.64962.13512.14432.14432.63422.63424.49443.93713.9371
O32.36281.35672.26641.45172.39033.29102.63132.63132.07942.07943.34842.65312.6531
O42.42631.21642.26642.66744.15192.57783.12863.12862.61582.61584.77754.57954.5795
C53.70812.37561.45172.66741.51544.50324.00594.00591.09681.09682.14712.16472.1647
C64.73743.64962.39034.15191.51545.67994.83964.83962.18042.18041.09781.09681.0968
H71.09242.13513.29102.57784.50325.67991.79501.79504.68784.68786.59395.82605.8260
H81.09692.14432.63133.12864.00594.83961.79501.76974.21734.57445.85385.01284.6876
H91.09692.14432.63133.12864.00594.83961.79501.76974.57444.21735.85384.68765.0128
H104.02772.63422.07942.61581.09682.18044.68784.21734.57441.77412.51923.09012.5272
H114.02772.63422.07942.61581.09682.18044.68784.57444.21731.77412.51922.52723.0901
H125.71074.49443.34844.77752.14711.09786.59395.85385.85382.51922.51921.78021.7802
H134.83733.93712.65314.57952.16471.09685.82605.01284.68763.09012.52721.78021.7821
H144.83733.93712.65314.57952.16471.09685.82604.68765.01282.52723.09011.78021.7821

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 111.035 C1 C2 O4 125.568
C2 C1 H7 109.357 C2 C1 H8 109.806
C2 C1 H9 109.806 C2 O3 C5 115.498
O3 C2 O4 123.396 O3 C5 C6 107.318
O3 C5 H10 108.558 O3 C5 H11 108.558
C5 C6 H12 109.459 C5 C6 H13 110.904
C5 C6 H14 110.904 C6 C5 H10 112.172
C6 C5 H11 112.172 H7 C1 H8 110.153
H7 C1 H9 110.153 H8 C1 H9 107.545
H10 C5 H11 107.954 H12 C6 H13 108.422
H12 C6 H14 108.422 H13 C6 H14 108.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.139      
2 C 0.514      
3 O -0.714      
4 O -0.923      
5 C 2.086      
6 C 0.494      
7 H -0.360      
8 H -0.138      
9 H -0.138      
10 H -0.584      
11 H -0.584      
12 H -0.375      
13 H -0.209      
14 H -0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.316 2.016 0.000 2.040
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.145 -1.080 0.000
y -1.080 -43.779 0.000
z 0.000 0.000 -36.291
Traceless
 xyz
x 8.890 -1.080 0.000
y -1.080 -10.060 0.000
z 0.000 0.000 1.171
Polar
3z2-r22.341
x2-y212.633
xy-1.080
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.462 0.610 0.000
y 0.610 9.056 0.000
z 0.000 0.000 7.068


<r2> (average value of r2) Å2
<r2> 203.013
(<r2>)1/2 14.248