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

using model chemistry: PBE1PBE/6-311G**

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/6-311G**
 hartrees
Energy at 0K-307.436170
Energy at 298.15K 
HF Energy-307.436170
Nuclear repulsion energy244.526395
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/6-311G**
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' 3192 3062 5.88 63.96 0.69 0.82
2 A' 3142 3014 22.11 76.40 0.70 0.83
3 A' 3074 2949 3.04 107.73 0.00 0.00
4 A' 3070 2946 15.33 123.25 0.06 0.12
5 A' 3061 2936 15.59 132.82 0.00 0.01
6 A' 1852 1777 263.23 3.22 0.37 0.54
7 A' 1520 1458 6.96 1.91 0.75 0.86
8 A' 1496 1435 3.18 15.17 0.75 0.86
9 A' 1466 1406 14.64 9.83 0.69 0.82
10 A' 1433 1374 8.90 2.86 0.70 0.82
11 A' 1400 1343 94.08 1.54 0.75 0.85
12 A' 1382 1326 29.35 1.89 0.74 0.85
13 A' 1291 1238 397.05 0.49 0.35 0.51
14 A' 1147 1101 16.39 6.30 0.15 0.26
15 A' 1100 1056 91.48 2.49 0.75 0.86
16 A' 1013 972 8.69 1.17 0.23 0.37
17 A' 970 931 4.91 2.15 0.14 0.25
18 A' 876 841 7.72 6.56 0.34 0.50
19 A' 650 624 7.01 7.43 0.33 0.50
20 A' 431 413 0.82 0.28 0.64 0.78
21 A' 373 358 10.15 2.76 0.31 0.48
22 A' 195 187 5.01 0.36 0.67 0.80
23 A" 3147 3019 28.53 72.50 0.75 0.86
24 A" 3147 3019 10.23 8.69 0.75 0.86
25 A" 3110 2984 8.18 87.99 0.75 0.86
26 A" 1481 1420 8.33 11.08 0.75 0.86
27 A" 1470 1411 10.58 9.81 0.75 0.86
28 A" 1301 1248 1.25 7.79 0.75 0.86
29 A" 1180 1132 4.49 0.58 0.75 0.86
30 A" 1062 1019 7.30 0.12 0.75 0.86
31 A" 809 776 1.07 0.18 0.75 0.86
32 A" 610 585 4.61 1.00 0.75 0.86
33 A" 267 256 1.09 0.03 0.75 0.86
34 A" 156 149 4.43 0.03 0.75 0.86
35 A" 60 58 0.23 0.24 0.75 0.86
36 A" 37 36 0.82 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25985.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 24930.0 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/6-311G**
ABC
0.28348 0.07037 0.05821

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.301 0.031 0.000
C2 -0.904 -0.517 0.000
O3 0.000 0.476 0.000
O4 -0.609 -1.682 0.000
C5 1.375 0.065 0.000
C6 2.222 1.312 0.000
H7 -3.013 -0.792 0.000
H8 -2.453 0.660 0.880
H9 -2.453 0.660 -0.880
H10 1.558 -0.557 0.881
H11 1.558 -0.557 -0.881
H12 3.282 1.043 0.000
H13 2.021 1.919 -0.886
H14 2.021 1.919 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50072.34382.40803.67614.70081.08811.09251.09254.00174.00175.67384.79884.7988
C21.50071.34311.20182.35193.62142.12702.13552.13552.61512.61514.46693.90803.9080
O32.34381.34312.24231.43512.37373.26912.61302.61302.06662.06663.33022.63612.6361
O42.40801.20182.24232.64274.11962.56403.10843.10842.59512.59514.74954.54554.5455
C53.67612.35191.43512.64271.50734.47083.97303.97301.09381.09382.14322.15392.1539
C64.70083.62142.37374.11961.50735.64184.80194.80192.16992.16991.09321.09261.0926
H71.08812.12703.26912.56404.47085.64181.78761.78764.66114.66116.55675.78565.7856
H81.09252.13552.61303.10843.97304.80191.78761.76034.19184.54685.81484.97224.6481
H91.09252.13552.61303.10843.97304.80191.78761.76034.54684.19185.81484.64814.9722
H104.00172.61512.06662.59511.09382.16994.66114.19184.54681.76232.51163.07652.5185
H114.00172.61512.06662.59511.09382.16994.66114.54684.19181.76232.51162.51853.0765
H125.67384.46693.33024.74952.14321.09326.55675.81485.81482.51162.51161.77211.7721
H134.79883.90802.63614.54552.15391.09265.78564.97224.64813.07652.51851.77211.7717
H144.79883.90802.63614.54552.15391.09265.78564.64814.97222.51853.07651.77211.7717

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 110.895 C1 C2 O4 125.647
C2 C1 H7 109.460 C2 C1 H8 109.876
C2 C1 H9 109.876 C2 O3 C5 115.639
O3 C2 O4 123.457 O3 C5 C6 107.524
O3 C5 H10 108.864 O3 C5 H11 108.864
C5 C6 H12 109.980 C5 C6 H13 110.872
C5 C6 H14 110.872 C6 C5 H10 112.090
C6 C5 H11 112.090 H7 C1 H8 110.130
H7 C1 H9 110.130 H8 C1 H9 107.343
H10 C5 H11 107.337 H12 C6 H13 108.344
H12 C6 H14 108.344 H13 C6 H14 108.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.341      
2 C 0.324      
3 O -0.325      
4 O -0.356      
5 C -0.067      
6 C -0.355      
7 H 0.153      
8 H 0.150      
9 H 0.150      
10 H 0.138      
11 H 0.138      
12 H 0.127      
13 H 0.132      
14 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.264 1.914 0.000 1.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.536 -1.059 0.000
y -1.059 -42.539 0.000
z 0.000 0.000 -35.431
Traceless
 xyz
x 8.449 -1.059 0.000
y -1.059 -9.555 0.000
z 0.000 0.000 1.106
Polar
3z2-r22.212
x2-y212.003
xy-1.059
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.020 0.481 0.000
y 0.481 7.743 0.000
z 0.000 0.000 6.023


<r2> (average value of r2) Å2
<r2> 199.735
(<r2>)1/2 14.133