return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/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 B97D3/daug-cc-pVDZ
 hartrees
Energy at 0K-307.567390
Energy at 298.15K 
HF Energy-307.567390
Nuclear repulsion energy241.574934
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/daug-cc-pVDZ
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' 3121 3121 10.26 62.37 0.67 0.80
2 A' 3068 3068 30.08 77.71 0.68 0.81
3 A' 3004 3004 22.32 83.72 0.06 0.11
4 A' 2999 2999 3.70 223.56 0.01 0.01
5 A' 2987 2987 23.46 201.06 0.01 0.01
6 A' 1734 1734 253.77 8.75 0.22 0.36
7 A' 1465 1465 5.13 0.90 0.74 0.85
8 A' 1446 1446 2.29 7.27 0.75 0.86
9 A' 1421 1421 13.88 6.09 0.58 0.73
10 A' 1377 1377 5.05 2.17 0.66 0.80
11 A' 1351 1351 31.37 0.32 0.59 0.74
12 A' 1337 1337 14.19 1.54 0.39 0.56
13 A' 1212 1212 358.72 1.75 0.58 0.73
14 A' 1104 1104 5.02 7.39 0.10 0.18
15 A' 1027 1027 138.92 2.39 0.71 0.83
16 A' 983 983 13.05 1.15 0.11 0.20
17 A' 918 918 15.57 2.32 0.09 0.17
18 A' 827 827 8.88 7.42 0.22 0.36
19 A' 619 619 3.63 8.97 0.20 0.33
20 A' 420 420 0.95 0.49 0.56 0.72
21 A' 358 358 7.75 4.37 0.21 0.35
22 A' 189 189 5.31 0.42 0.51 0.67
23 A" 3078 3078 47.96 16.27 0.75 0.86
24 A" 3071 3071 8.47 58.68 0.75 0.86
25 A" 3048 3048 4.40 89.46 0.75 0.86
26 A" 1436 1436 5.69 5.27 0.75 0.86
27 A" 1429 1429 7.14 4.40 0.75 0.86
28 A" 1254 1254 0.86 3.88 0.75 0.86
29 A" 1139 1139 2.87 0.57 0.75 0.86
30 A" 1025 1025 3.84 0.06 0.75 0.86
31 A" 790 790 0.68 0.25 0.75 0.86
32 A" 588 588 3.56 0.33 0.75 0.86
33 A" 251 251 0.92 0.01 0.75 0.86
34 A" 151 151 4.39 0.04 0.75 0.86
35 A" 62 62 0.44 0.22 0.75 0.86
36 A" 3 3 0.28 0.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25145.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25145.1 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/daug-cc-pVDZ
ABC
0.27702 0.06859 0.05675

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.326 0.037 0.000
C2 -0.919 -0.522 0.000
O3 0.000 0.486 0.000
O4 -0.626 -1.705 0.000
C5 1.398 0.066 0.000
C6 2.253 1.321 0.000
H7 -3.045 -0.791 0.000
H8 -2.479 0.671 0.887
H9 -2.479 0.671 -0.887
H10 1.574 -0.557 0.890
H11 1.574 -0.557 -0.890
H12 3.317 1.037 0.000
H13 2.058 1.933 -0.894
H14 2.058 1.933 0.894

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.51312.36882.43343.72364.75531.09591.10101.10104.04364.04365.73064.85884.8588
C21.51311.36411.21902.39053.66862.14222.15432.15432.64752.64754.51383.96053.9605
O32.36881.36412.27861.45942.40263.30142.63952.63952.08752.08753.36232.66942.6694
O42.43341.21902.27862.68934.17672.58563.14063.14062.63612.63614.80244.60804.6080
C53.72362.39051.45942.68931.51854.52424.02274.02271.10101.10102.15062.17232.1723
C64.75533.66862.40264.17671.51855.70284.85814.85812.18682.18681.10161.10071.1007
H71.09592.14223.30142.58564.52425.70281.80041.80044.70914.70916.61885.85225.8522
H81.10102.15432.63953.14064.02274.85811.80041.77404.23474.59265.87505.03464.7090
H91.10102.15432.63953.14064.02274.85811.80041.77404.59264.23475.87504.70905.0346
H104.04362.64752.08752.63611.10102.18684.70914.23474.59261.78062.52423.10132.5365
H114.04362.64752.08752.63611.10102.18684.70914.59264.23471.78062.52422.53653.1013
H125.73064.51383.36234.80242.15061.10166.61885.87505.87502.52422.52421.78571.7857
H134.85883.96052.66944.60802.17231.10075.85225.03464.70903.10132.53651.78571.7883
H144.85883.96052.66944.60802.17231.10075.85224.70905.03462.53653.10131.78571.7883

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 110.726 C1 C2 O4 125.570
C2 C1 H7 109.343 C2 C1 H8 109.994
C2 C1 H9 109.994 C2 O3 C5 115.656
O3 C2 O4 123.704 O3 C5 C6 107.547
O3 C5 H10 108.418 O3 C5 H11 108.418
C5 C6 H12 109.295 C5 C6 H13 111.058
C5 C6 H14 111.058 C6 C5 H10 112.206
C6 C5 H11 112.206 H7 C1 H8 110.074
H7 C1 H9 110.074 H8 C1 H9 107.340
H10 C5 H11 107.924 H12 C6 H13 108.352
H12 C6 H14 108.352 H13 C6 H14 108.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.041      
2 C 0.480      
3 O -0.574      
4 O -0.841      
5 C 2.056      
6 C 0.333      
7 H -0.360      
8 H -0.101      
9 H -0.101      
10 H -0.601      
11 H -0.601      
12 H -0.364      
13 H -0.184      
14 H -0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.369 2.033 0.000 2.067
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.867 -1.062 0.000
y -1.062 -43.298 0.000
z 0.000 0.000 -35.972
Traceless
 xyz
x 8.768 -1.062 0.000
y -1.062 -9.879 0.000
z 0.000 0.000 1.111
Polar
3z2-r22.222
x2-y212.431
xy-1.062
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.109 0.660 0.000
y 0.660 9.391 0.000
z 0.000 0.000 7.297


<r2> (average value of r2) Å2
<r2> 204.478
(<r2>)1/2 14.300