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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-307.663299
Energy at 298.15K 
HF Energy-307.663299
Nuclear repulsion energy239.200887
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 B3LYP/SDD
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' 3198 3074 12.99 57.77 0.69 0.82
2 A' 3144 3023 37.63 62.08 0.72 0.84
3 A' 3078 2959 19.43 103.90 0.06 0.11
4 A' 3068 2949 3.12 147.60 0.00 0.01
5 A' 3054 2936 22.45 126.89 0.01 0.03
6 A' 1695 1629 221.76 3.02 0.30 0.46
7 A' 1534 1474 12.49 0.91 0.74 0.85
8 A' 1521 1462 4.77 19.62 0.73 0.84
9 A' 1497 1439 29.77 12.85 0.71 0.83
10 A' 1446 1390 14.79 2.27 0.72 0.84
11 A' 1432 1377 49.94 2.02 0.75 0.86
12 A' 1407 1352 0.57 3.52 0.74 0.85
13 A' 1257 1208 384.31 0.56 0.75 0.86
14 A' 1142 1098 5.78 10.09 0.20 0.34
15 A' 1065 1023 125.67 4.92 0.66 0.79
16 A' 1026 986 9.82 2.56 0.35 0.52
17 A' 935 899 21.77 1.95 0.44 0.61
18 A' 815 784 9.80 15.02 0.24 0.38
19 A' 620 596 7.32 10.54 0.34 0.51
20 A' 418 401 0.62 0.69 0.62 0.77
21 A' 354 340 10.23 3.96 0.36 0.53
22 A' 182 175 6.83 0.39 0.68 0.81
23 A" 3163 3040 62.15 10.32 0.75 0.86
24 A" 3152 3030 10.38 50.76 0.75 0.86
25 A" 3133 3011 3.32 77.54 0.75 0.86
26 A" 1507 1449 11.30 14.49 0.75 0.86
27 A" 1499 1441 16.73 12.68 0.75 0.86
28 A" 1290 1240 0.03 14.91 0.75 0.86
29 A" 1176 1131 6.47 2.20 0.75 0.86
30 A" 1084 1042 10.83 1.72 0.75 0.86
31 A" 823 791 3.21 0.10 0.75 0.86
32 A" 587 564 5.50 1.71 0.75 0.86
33 A" 251 241 1.97 0.03 0.75 0.86
34 A" 151 146 8.21 0.01 0.75 0.86
35 A" 57 55 0.23 0.52 0.75 0.86
36 A" 33 32 0.97 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25895.2 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 24893.0 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 B3LYP/SDD
ABC
0.27036 0.06715 0.05547

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.341 0.010 0.000
C2 -0.935 -0.543 0.000
O3 0.000 0.477 0.000
O4 -0.619 -1.745 0.000
C5 1.434 0.089 0.000
C6 2.243 1.381 0.000
H7 -3.059 -0.812 0.000
H8 -2.496 0.640 0.884
H9 -2.496 0.640 -0.884
H10 1.625 -0.526 0.888
H11 1.625 -0.526 -0.888
H12 3.316 1.148 0.000
H13 2.018 1.981 -0.889
H14 2.018 1.981 0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.51132.38762.45943.77604.78491.09171.09591.09594.09984.09985.77024.86664.8666
C21.51131.38431.24272.45183.71512.14122.14872.14872.70982.70984.57473.98593.9859
O32.38761.38432.30691.48542.41803.32012.65292.65292.10582.10583.38262.66932.6693
O42.45941.24272.30692.75234.23792.61293.16123.16122.70372.70374.88324.65084.6508
C53.77602.45181.48542.75231.52464.58254.06554.06551.09641.09642.15932.17112.1711
C64.78493.71512.41804.23791.52465.73794.87734.87732.19182.19181.09771.09581.0958
H71.09172.14123.32012.61294.58255.73791.79071.79074.77644.77646.66945.86325.8632
H81.09592.14872.65293.16124.06554.87731.79071.76714.28284.63465.90045.03204.7096
H91.09592.14872.65293.16124.06554.87731.79071.76714.63464.28285.90044.70965.0320
H104.09982.70982.10582.70371.09642.19184.77644.28284.63461.77562.53883.09762.5376
H114.09982.70982.10582.70371.09642.19184.77644.63464.28281.77562.53882.53763.0976
H125.77024.57473.38264.88322.15931.09776.66945.90045.90042.53882.53881.77981.7798
H134.86663.98592.66934.65082.17111.09585.86325.03204.70963.09762.53761.77981.7772
H144.86663.98592.66934.65082.17111.09585.86324.70965.03202.53763.09761.77981.7772

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 111.016 C1 C2 O4 126.237
C2 C1 H7 109.636 C2 C1 H8 109.983
C2 C1 H9 109.983 C2 O3 C5 117.331
O3 C2 O4 122.747 O3 C5 C6 106.889
O3 C5 H10 108.361 O3 C5 H11 108.361
C5 C6 H12 109.790 C5 C6 H13 110.841
C5 C6 H14 110.841 C6 C5 H10 112.469
C6 C5 H11 112.469 H7 C1 H8 109.878
H7 C1 H9 109.878 H8 C1 H9 107.456
H10 C5 H11 108.145 H12 C6 H13 108.462
H12 C6 H14 108.462 H13 C6 H14 108.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.693      
2 C 0.332      
3 O -0.308      
4 O -0.286      
5 C -0.163      
6 C -0.621      
7 H 0.231      
8 H 0.232      
9 H 0.232      
10 H 0.212      
11 H 0.212      
12 H 0.194      
13 H 0.213      
14 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.436 2.101 0.000 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.915 -1.048 0.000
y -1.048 -43.941 0.000
z 0.000 0.000 -35.342
Traceless
 xyz
x 10.727 -1.048 0.000
y -1.048 -11.813 0.000
z 0.000 0.000 1.086
Polar
3z2-r22.172
x2-y215.026
xy-1.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.490 0.580 0.000
y 0.580 7.473 0.000
z 0.000 0.000 5.422


<r2> (average value of r2) Å2
<r2> 207.850
(<r2>)1/2 14.417