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

using model chemistry: PBE1PBE/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 PBE1PBE/daug-cc-pVTZ
 hartrees
Energy at 0K-307.471438
Energy at 298.15K 
HF Energy-307.471438
Nuclear repulsion energy244.655801
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 PBE1PBE/daug-cc-pVTZ
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' 3184 3184 4.55 55.02 0.67 0.80
2 A' 3133 3133 18.23 67.09 0.68 0.81
3 A' 3070 3070 2.46 151.56 0.00 0.01
4 A' 3064 3064 14.36 128.56 0.04 0.07
5 A' 3056 3056 14.59 183.59 0.00 0.01
6 A' 1825 1825 281.73 7.94 0.22 0.36
7 A' 1513 1513 7.70 1.13 0.74 0.85
8 A' 1490 1490 2.90 6.67 0.75 0.86
9 A' 1462 1462 15.23 5.55 0.60 0.75
10 A' 1426 1426 8.98 1.19 0.74 0.85
11 A' 1400 1400 74.26 0.19 0.71 0.83
12 A' 1382 1382 23.08 0.98 0.31 0.47
13 A' 1289 1289 395.85 1.17 0.57 0.72
14 A' 1144 1144 13.16 7.45 0.11 0.20
15 A' 1098 1098 92.98 1.66 0.73 0.84
16 A' 1013 1013 7.86 1.22 0.16 0.28
17 A' 966 966 4.88 2.43 0.13 0.22
18 A' 872 872 7.12 5.99 0.20 0.34
19 A' 647 647 6.26 7.21 0.20 0.33
20 A' 431 431 0.94 0.24 0.66 0.80
21 A' 372 372 9.17 3.12 0.21 0.34
22 A' 194 194 5.74 0.38 0.53 0.69
23 A" 3139 3139 11.67 60.66 0.75 0.86
24 A" 3139 3139 20.06 10.33 0.75 0.86
25 A" 3102 3102 5.59 75.42 0.75 0.86
26 A" 1478 1478 7.27 4.91 0.75 0.86
27 A" 1469 1469 8.67 3.98 0.75 0.86
28 A" 1298 1298 1.14 3.49 0.75 0.86
29 A" 1177 1177 3.66 0.31 0.75 0.86
30 A" 1064 1064 6.40 0.08 0.75 0.86
31 A" 807 807 1.05 0.21 0.75 0.86
32 A" 614 614 4.43 0.31 0.75 0.86
33 A" 263 263 0.94 0.01 0.75 0.86
34 A" 155 155 4.52 0.03 0.75 0.86
35 A" 67 67 0.37 0.19 0.75 0.86
36 A" 40 40 0.33 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25921.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25921.1 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 PBE1PBE/daug-cc-pVTZ
ABC
0.28460 0.07031 0.05821

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.301 0.032 0.000
C2 -0.905 -0.513 0.000
O3 0.000 0.476 0.000
O4 -0.612 -1.680 0.000
C5 1.374 0.066 0.000
C6 2.226 1.307 0.000
H7 -3.012 -0.789 0.000
H8 -2.455 0.660 0.879
H9 -2.455 0.660 -0.879
H10 1.555 -0.555 0.880
H11 1.555 -0.555 -0.880
H12 3.281 1.028 0.000
H13 2.033 1.915 -0.885
H14 2.033 1.915 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49882.34372.40483.67534.70341.08631.09091.09093.99903.99905.67074.80784.8078
C21.49881.34101.20272.35143.62172.12512.13332.13332.61342.61344.46123.91313.9131
O32.34371.34102.24101.43382.37603.26722.61412.61412.06302.06303.32742.64322.6432
O42.40481.20272.24102.64414.12002.55993.10533.10532.59572.59574.74254.54994.5499
C53.67532.35141.43382.64411.50534.46863.97313.97311.09201.09202.13642.15332.1533
C64.70343.62172.37604.12001.50535.64214.80674.80672.16552.16551.09131.09091.0909
H71.08632.12513.26722.55994.46865.64211.78401.78404.65744.65746.55075.79235.7923
H81.09092.13332.61413.10533.97314.80671.78401.75724.19044.54445.81504.98284.6604
H91.09092.13332.61413.10533.97314.80671.78401.75724.54444.19045.81504.66044.9828
H103.99902.61342.06302.59571.09202.16554.65744.19044.54441.75992.50183.07282.5155
H113.99902.61342.06302.59571.09202.16554.65744.54444.19041.75992.50182.51553.0728
H125.67074.46123.32744.74252.13641.09136.55075.81505.81502.50182.50181.76841.7684
H134.80783.91312.64324.54992.15331.09095.79234.98284.66043.07282.51551.76841.7695
H144.80783.91312.64324.54992.15331.09095.79234.66044.98282.51553.07281.76841.7695

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 111.122 C1 C2 O4 125.433
C2 C1 H7 109.548 C2 C1 H8 109.926
C2 C1 H9 109.926 C2 O3 C5 115.829
O3 C2 O4 123.445 O3 C5 C6 107.857
O3 C5 H10 108.774 O3 C5 H11 108.774
C5 C6 H12 109.692 C5 C6 H13 111.065
C5 C6 H14 111.065 C6 C5 H10 111.987
C6 C5 H11 111.987 H7 C1 H8 110.057
H7 C1 H9 110.057 H8 C1 H9 107.299
H10 C5 H11 107.383 H12 C6 H13 108.264
H12 C6 H14 108.264 H13 C6 H14 108.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C 0.880      
3 O -0.221      
4 O -1.363      
5 C -0.392      
6 C -0.775      
7 H 0.321      
8 H 0.204      
9 H 0.204      
10 H 0.355      
11 H 0.355      
12 H 0.287      
13 H 0.271      
14 H 0.271      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.282 2.067 0.000 2.086
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.533 -1.072 0.000
y -1.072 -42.978 0.000
z 0.000 0.000 -35.624
Traceless
 xyz
x 8.768 -1.072 0.000
y -1.072 -9.900 0.000
z 0.000 0.000 1.131
Polar
3z2-r22.263
x2-y212.445
xy-1.072
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.267 0.576 0.000
y 0.576 8.845 0.000
z 0.000 0.000 6.951


<r2> (average value of r2) Å2
<r2> 199.870
(<r2>)1/2 14.138