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

using model chemistry: wB97X-D/aug-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 wB97X-D/aug-cc-pVDZ
 hartrees
Energy at 0K-307.648712
Energy at 298.15K 
HF Energy-307.648712
Nuclear repulsion energy243.647664
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 wB97X-D/aug-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' 3195 3059 6.35 53.02 0.68 0.81
2 A' 3147 3013 22.52 64.38 0.69 0.82
3 A' 3077 2945 18.09 96.48 0.04 0.09
4 A' 3072 2940 1.87 186.70 0.00 0.01
5 A' 3059 2929 17.83 157.76 0.00 0.01
6 A' 1826 1748 286.24 7.51 0.26 0.41
7 A' 1503 1438 6.91 1.37 0.75 0.86
8 A' 1480 1416 3.35 5.85 0.75 0.86
9 A' 1451 1389 14.84 5.02 0.61 0.76
10 A' 1429 1368 7.61 1.34 0.68 0.81
11 A' 1397 1337 113.33 0.24 0.62 0.77
12 A' 1375 1316 10.92 0.64 0.32 0.49
13 A' 1295 1239 377.09 0.97 0.62 0.77
14 A' 1143 1094 12.43 8.24 0.11 0.19
15 A' 1101 1054 89.87 1.86 0.72 0.84
16 A' 1015 971 7.96 1.30 0.16 0.28
17 A' 966 925 5.11 2.47 0.15 0.26
18 A' 875 838 7.67 6.19 0.20 0.33
19 A' 647 619 7.03 7.46 0.20 0.33
20 A' 434 416 1.04 0.28 0.66 0.79
21 A' 375 359 9.45 3.12 0.21 0.35
22 A' 198 189 5.85 0.38 0.57 0.73
23 A" 3153 3019 38.87 19.05 0.75 0.86
24 A" 3153 3018 2.61 45.55 0.75 0.86
25 A" 3125 2991 4.14 76.17 0.75 0.86
26 A" 1469 1406 7.21 4.66 0.75 0.86
27 A" 1459 1397 8.41 3.94 0.75 0.86
28 A" 1295 1240 1.22 3.63 0.75 0.86
29 A" 1176 1126 3.57 0.25 0.75 0.86
30 A" 1060 1014 6.25 0.08 0.75 0.86
31 A" 813 779 0.73 0.18 0.75 0.86
32 A" 614 588 5.02 0.35 0.75 0.86
33 A" 264 253 0.94 0.01 0.75 0.86
34 A" 155 148 4.80 0.03 0.75 0.86
35 A" 72 69 0.40 0.20 0.75 0.86
36 A" 48 46 0.33 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25956.4 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 24848.1 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 wB97X-D/aug-cc-pVDZ
ABC
0.28183 0.06981 0.05778

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.310 0.023 0.000
C2 -0.906 -0.519 0.000
O3 0.000 0.475 0.000
O4 -0.608 -1.690 0.000
C5 1.381 0.070 0.000
C6 2.225 1.326 0.000
H7 -3.019 -0.808 0.000
H8 -2.464 0.653 0.886
H9 -2.464 0.653 -0.886
H10 1.566 -0.549 0.887
H11 1.566 -0.549 -0.887
H12 3.288 1.051 0.000
H13 2.024 1.933 -0.891
H14 2.024 1.933 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50422.35342.41493.69084.71801.09291.09741.09744.01714.01715.69114.81924.8192
C21.50421.34521.20872.36193.63422.13252.14072.14072.62722.62724.47833.92363.9236
O32.35341.34522.24891.43902.38203.28062.62442.62442.07122.07123.33792.64912.6491
O42.41491.20872.24892.65584.13742.56773.11743.11742.61042.61044.76304.56614.5661
C53.69082.36191.43902.65581.51274.48693.98843.98841.09791.09792.14422.16312.1631
C64.71803.63422.38204.13741.51275.66174.81934.81932.17622.17621.09791.09741.0974
H71.09292.13253.28062.56774.48695.66171.79601.79604.67774.67776.57535.80905.8090
H81.09742.14072.62443.11743.98844.81931.79601.77114.20584.56415.83354.99434.6674
H91.09742.14072.62443.11743.98844.81931.79601.77114.56414.20585.83354.66744.9943
H104.01712.62722.07122.61041.09792.17624.67774.20584.56411.77422.51213.08802.5244
H114.01712.62722.07122.61041.09792.17624.67774.56414.20581.77422.51212.52443.0880
H125.69114.47833.33794.76302.14421.09796.57535.83355.83352.51212.51211.78081.7808
H134.81923.92362.64914.56612.16311.09745.80904.99434.66743.08802.52441.78081.7829
H144.81923.92362.64914.56612.16311.09745.80904.66744.99432.52443.08801.78081.7829

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 111.244 C1 C2 O4 125.425
C2 C1 H7 109.367 C2 C1 H8 109.755
C2 C1 H9 109.755 C2 O3 C5 116.019
O3 C2 O4 123.332 O3 C5 C6 107.582
O3 C5 H10 108.716 O3 C5 H11 108.716
C5 C6 H12 109.417 C5 C6 H13 110.935
C5 C6 H14 110.935 C6 C5 H10 111.968
C6 C5 H11 111.968 H7 C1 H8 110.169
H7 C1 H9 110.169 H8 C1 H9 107.605
H10 C5 H11 107.805 H12 C6 H13 108.418
H12 C6 H14 108.418 H13 C6 H14 108.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.373      
2 C 0.407      
3 O -0.560      
4 O -0.490      
5 C 1.021      
6 C 0.450      
7 H -0.111      
8 H -0.057      
9 H -0.057      
10 H -0.303      
11 H -0.303      
12 H -0.113      
13 H -0.129      
14 H -0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.274 2.112 0.000 2.130
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.369 -1.048 0.000
y -1.048 -43.261 0.000
z 0.000 0.000 -35.628
Traceless
 xyz
x 9.075 -1.048 0.000
y -1.048 -10.262 0.000
z 0.000 0.000 1.187
Polar
3z2-r22.375
x2-y212.891
xy-1.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.176 0.572 0.000
y 0.572 8.893 0.000
z 0.000 0.000 6.983


<r2> (average value of r2) Å2
<r2> 201.217
(<r2>)1/2 14.185