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

using model chemistry: B3PW91/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 B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-307.633067
Energy at 298.15K 
HF Energy-307.633067
Nuclear repulsion energy243.359676
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 B3PW91/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' 3185 3185 5.99 56.82 0.68 0.81
2 A' 3133 3133 21.91 69.47 0.69 0.81
3 A' 3065 3065 17.89 78.28 0.06 0.11
4 A' 3060 3060 1.21 207.54 0.00 0.01
5 A' 3048 3048 17.29 183.45 0.00 0.01
6 A' 1803 1803 272.51 7.85 0.22 0.37
7 A' 1490 1490 7.03 1.00 0.74 0.85
8 A' 1468 1468 2.53 6.97 0.75 0.86
9 A' 1442 1442 14.43 5.73 0.60 0.75
10 A' 1410 1410 7.93 1.53 0.74 0.85
11 A' 1380 1380 85.94 0.37 0.61 0.76
12 A' 1360 1360 11.64 1.00 0.31 0.47
13 A' 1270 1270 371.32 1.21 0.61 0.76
14 A' 1132 1132 8.40 7.86 0.10 0.19
15 A' 1082 1082 102.27 1.91 0.75 0.86
16 A' 1003 1003 9.46 1.12 0.14 0.25
17 A' 956 956 6.83 2.54 0.11 0.20
18 A' 860 860 7.30 6.39 0.21 0.35
19 A' 640 640 6.02 7.70 0.20 0.33
20 A' 426 426 0.95 0.31 0.62 0.77
21 A' 366 366 8.96 3.38 0.21 0.35
22 A' 192 192 5.74 0.39 0.53 0.69
23 A" 3141 3141 35.20 17.30 0.75 0.86
24 A" 3137 3137 4.33 52.84 0.75 0.86
25 A" 3110 3110 4.27 80.62 0.75 0.86
26 A" 1457 1457 6.89 5.16 0.75 0.86
27 A" 1450 1450 8.25 4.30 0.75 0.86
28 A" 1279 1279 1.11 3.73 0.75 0.86
29 A" 1162 1162 3.41 0.34 0.75 0.86
30 A" 1048 1048 5.63 0.06 0.75 0.86
31 A" 798 798 0.98 0.21 0.75 0.86
32 A" 606 606 4.19 0.33 0.75 0.86
33 A" 255 255 1.01 0.01 0.75 0.86
34 A" 156 156 4.52 0.04 0.75 0.86
35 A" 63 63 0.45 0.20 0.75 0.86
36 A" 32 32 0.33 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25731.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25731.0 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 B3PW91/daug-cc-pVDZ
ABC
0.28160 0.06961 0.05763

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.312 0.032 0.000
C2 -0.911 -0.514 0.000
O3 0.000 0.481 0.000
O4 -0.616 -1.689 0.000
C5 1.382 0.066 0.000
C6 2.237 1.312 0.000
H7 -3.025 -0.796 0.000
H8 -2.467 0.663 0.884
H9 -2.467 0.663 -0.884
H10 1.561 -0.557 0.886
H11 1.561 -0.557 -0.886
H12 3.298 1.028 0.000
H13 2.045 1.923 -0.891
H14 2.045 1.923 0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50372.35522.41643.69394.72591.09251.09741.09744.01624.01625.69764.83214.8321
C21.50371.34931.21082.36523.63982.13242.14272.14272.62612.62614.48273.93333.9333
O32.35521.34932.25501.44282.38673.28322.62742.62742.07332.07333.34302.65592.6559
O42.41641.21082.25502.65834.14012.56953.12143.12142.60762.60764.76384.57314.5731
C53.69392.36521.44282.65831.51154.49003.99443.99441.09791.09792.14422.16392.1639
C64.72593.63982.38674.14011.51155.66864.83094.83092.17652.17651.09791.09731.0973
H71.09252.13243.28322.56954.49005.66861.79491.79494.67644.67646.58055.82115.8211
H81.09742.14272.62743.12143.99444.83091.79491.76834.20904.56615.84415.00954.6846
H91.09742.14272.62743.12143.99444.83091.79491.76834.56614.20905.84414.68465.0095
H104.01622.62612.07332.60761.09792.17654.67644.20904.56611.77202.51333.08932.5272
H114.01622.62612.07332.60761.09792.17654.67644.56614.20901.77202.51332.52723.0893
H125.69764.48273.34304.76382.14421.09796.58055.84415.84412.51332.51331.77911.7791
H134.83213.93332.65594.57312.16391.09735.82115.00954.68463.08932.52721.77911.7815
H144.83213.93332.65594.57312.16391.09735.82114.68465.00952.52723.08931.77911.7815

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 111.161 C1 C2 O4 125.448
C2 C1 H7 109.416 C2 C1 H8 109.937
C2 C1 H9 109.937 C2 O3 C5 115.751
O3 C2 O4 123.392 O3 C5 C6 107.753
O3 C5 H10 108.623 O3 C5 H11 108.623
C5 C6 H12 109.490 C5 C6 H13 111.086
C5 C6 H14 111.086 C6 C5 H10 112.067
C6 C5 H11 112.067 H7 C1 H8 110.092
H7 C1 H9 110.092 H8 C1 H9 107.345
H10 C5 H11 107.614 H12 C6 H13 108.281
H12 C6 H14 108.281 H13 C6 H14 108.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.885      
2 C 0.468      
3 O -0.592      
4 O -0.855      
5 C 1.953      
6 C 0.189      
7 H -0.293      
8 H -0.052      
9 H -0.052      
10 H -0.538      
11 H -0.538      
12 H -0.305      
13 H -0.135      
14 H -0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.297 2.068 0.000 2.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.473 -1.082 0.000
y -1.082 -43.064 0.000
z 0.000 0.000 -35.676
Traceless
 xyz
x 8.897 -1.082 0.000
y -1.082 -9.989 0.000
z 0.000 0.000 1.093
Polar
3z2-r22.185
x2-y212.591
xy-1.082
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.450 0.599 0.000
y 0.599 8.972 0.000
z 0.000 0.000 7.033


<r2> (average value of r2) Å2
<r2> 201.659
(<r2>)1/2 14.201