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

using model chemistry: mPW1PW91/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 mPW1PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-307.747605
Energy at 298.15K 
HF Energy-307.747605
Nuclear repulsion energy244.650883
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 mPW1PW91/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' 3188 3188 4.96 54.98 0.67 0.80
2 A' 3137 3137 19.22 66.51 0.68 0.81
3 A' 3075 3075 3.00 143.03 0.00 0.01
4 A' 3071 3071 14.00 134.77 0.04 0.07
5 A' 3062 3062 15.02 179.90 0.00 0.01
6 A' 1824 1824 283.03 7.94 0.22 0.37
7 A' 1520 1520 7.50 1.11 0.74 0.85
8 A' 1498 1498 2.87 6.72 0.75 0.86
9 A' 1470 1470 15.19 5.59 0.60 0.75
10 A' 1431 1431 7.34 1.11 0.73 0.85
11 A' 1406 1406 64.29 0.17 0.73 0.84
12 A' 1389 1389 21.69 1.00 0.33 0.49
13 A' 1289 1289 405.56 1.14 0.57 0.73
14 A' 1146 1146 13.32 7.43 0.11 0.20
15 A' 1095 1095 98.27 1.70 0.74 0.85
16 A' 1017 1017 7.39 1.32 0.16 0.28
17 A' 965 965 5.15 2.31 0.13 0.24
18 A' 872 872 7.53 6.21 0.20 0.34
19 A' 647 647 6.15 7.28 0.20 0.34
20 A' 432 432 0.94 0.25 0.66 0.79
21 A' 371 371 9.12 3.14 0.21 0.35
22 A' 194 194 5.74 0.38 0.53 0.69
23 A" 3144 3144 32.41 24.44 0.75 0.86
24 A" 3143 3143 1.26 44.69 0.75 0.86
25 A" 3109 3109 5.01 76.11 0.75 0.86
26 A" 1486 1486 7.08 4.94 0.75 0.86
27 A" 1476 1476 8.44 4.04 0.75 0.86
28 A" 1302 1302 1.14 3.49 0.75 0.86
29 A" 1182 1182 3.67 0.32 0.75 0.86
30 A" 1068 1068 6.32 0.07 0.75 0.86
31 A" 811 811 0.99 0.20 0.75 0.86
32 A" 616 616 4.60 0.31 0.75 0.86
33 A" 262 262 0.95 0.01 0.75 0.86
34 A" 154 154 4.57 0.03 0.75 0.86
35 A" 66 66 0.36 0.19 0.75 0.86
36 A" 41 41 0.33 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25977.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25977.9 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 mPW1PW91/daug-cc-pVTZ
ABC
0.28476 0.07024 0.05816

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.302 0.031 0.000
C2 -0.905 -0.514 0.000
O3 0.000 0.475 0.000
O4 -0.613 -1.680 0.000
C5 1.376 0.067 0.000
C6 2.226 1.309 0.000
H7 -3.012 -0.789 0.000
H8 -2.456 0.658 0.878
H9 -2.456 0.658 -0.878
H10 1.558 -0.552 0.879
H11 1.558 -0.552 -0.879
H12 3.280 1.032 0.000
H13 2.033 1.916 -0.884
H14 2.033 1.916 0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49912.34412.40423.67744.70481.08481.08941.08944.00084.00085.67104.80874.8087
C21.49911.34101.20202.35383.62392.12432.13252.13252.61532.61534.46223.91443.9144
O32.34411.34102.24061.43472.37743.26622.61412.61412.06222.06223.32722.64422.6442
O42.40421.20202.24062.64714.12302.55903.10363.10362.59952.59954.74504.55174.5517
C53.67742.35381.43472.64711.50574.47003.97453.97451.09031.09032.13532.15262.1526
C64.70483.62392.37744.12301.50575.64264.80764.80762.16432.16431.08991.08931.0893
H71.08482.12433.26622.55904.47005.64261.78141.78144.65924.65926.55035.79215.7921
H81.08942.13252.61413.10363.97454.80761.78141.75514.19164.54475.81464.98314.6615
H91.08942.13252.61413.10363.97454.80761.78141.75514.54474.19165.81464.66154.9831
H104.00082.61532.06222.59951.09032.16434.65924.19164.54471.75792.49993.07012.5138
H114.00082.61532.06222.59951.09032.16434.65924.54474.19161.75792.49992.51383.0701
H125.67104.46223.32724.74502.13531.08996.55035.81465.81462.49992.49991.76601.7660
H134.80873.91442.64424.55172.15261.08935.79214.98314.66153.07012.51381.76601.7672
H144.80873.91442.64424.55172.15261.08935.79214.66154.98312.51383.07011.76601.7672

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 111.128 C1 C2 O4 125.412
C2 C1 H7 109.551 C2 C1 H8 109.934
C2 C1 H9 109.934 C2 O3 C5 115.949
O3 C2 O4 123.460 O3 C5 C6 107.881
O3 C5 H10 108.751 O3 C5 H11 108.751
C5 C6 H12 109.665 C5 C6 H13 111.076
C5 C6 H14 111.076 C6 C5 H10 111.966
C6 C5 H11 111.966 H7 C1 H8 110.035
H7 C1 H9 110.035 H8 C1 H9 107.324
H10 C5 H11 107.446 H12 C6 H13 108.262
H12 C6 H14 108.262 H13 C6 H14 108.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.454      
2 C 1.166      
3 O -0.265      
4 O -1.508      
5 C -0.371      
6 C -0.797      
7 H 0.285      
8 H 0.190      
9 H 0.190      
10 H 0.370      
11 H 0.370      
12 H 0.251      
13 H 0.287      
14 H 0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.291 2.070 0.000 2.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.428 -1.073 0.000
y -1.073 -42.894 0.000
z 0.000 0.000 -35.518
Traceless
 xyz
x 8.778 -1.073 0.000
y -1.073 -9.921 0.000
z 0.000 0.000 1.143
Polar
3z2-r22.286
x2-y212.466
xy-1.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.212 0.576 0.000
y 0.576 8.798 0.000
z 0.000 0.000 6.908


<r2> (average value of r2) Å2
<r2> 199.919
(<r2>)1/2 14.139