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All results from a given calculation for C4H8OS (s-Ethyl thioacetate)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-623.319611
Energy at 298.15K-623.327789
Nuclear repulsion energy287.858547
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/STO-3G
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 3486 3111 0.03      
2 A 3484 3109 1.84      
3 A 3478 3104 0.74      
4 A 3469 3096 0.21      
5 A 3426 3057 3.82      
6 A 3317 2960 2.98      
7 A 3312 2956 1.78      
8 A 3303 2948 0.63      
9 A 1818 1622 92.64      
10 A 1691 1509 2.23      
11 A 1683 1502 4.16      
12 A 1667 1488 6.61      
13 A 1667 1487 1.44      
14 A 1657 1479 12.97      
15 A 1576 1406 0.38      
16 A 1528 1364 3.17      
17 A 1433 1279 32.16      
18 A 1384 1235 0.03      
19 A 1199 1070 106.81      
20 A 1159 1035 4.13      
21 A 1136 1014 0.78      
22 A 1085 968 2.06      
23 A 1081 965 3.84      
24 A 1010 901 35.12      
25 A 853 761 3.87      
26 A 808 721 2.03      
27 A 671 599 19.32      
28 A 497 444 0.76      
29 A 457 408 3.64      
30 A 388 346 1.07      
31 A 321 286 0.36      
32 A 230 205 0.03      
33 A 186 166 0.02      
34 A 181 162 0.64      
35 A 80 72 0.19      
36 A 64 57 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 27391.1 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 24443.8 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/STO-3G
ABC
0.20116 0.05347 0.04328

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.438 -0.791 -0.000
C2 1.407 -0.080 -0.000
S3 -0.241 -0.866 0.000
H4 0.996 1.911 -0.893
H5 2.544 1.784 -0.001
H6 0.997 1.911 0.893
C7 1.484 1.489 -0.000
H8 -1.218 1.208 0.891
H9 -1.218 1.208 -0.891
C10 -1.384 0.577 0.000
H11 -3.058 -0.544 -0.892
H12 -3.549 0.922 0.000
H13 -3.058 -0.544 0.893
C14 -2.854 0.068 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.25262.68063.19012.57763.19002.47204.26154.26134.05945.57356.22725.57375.3619
C21.25261.82572.22062.18392.22051.57143.05693.05682.86694.57665.05594.57664.2638
S32.68061.82573.16833.84433.16862.91912.45932.45931.84022.97213.75972.97212.7747
H43.19012.22063.16831.79101.78661.10142.92912.32322.87044.73934.73595.06444.3615
H52.57762.18393.84431.79101.79101.10043.90883.90874.10886.13156.15316.13155.6647
H63.19002.22053.16861.78661.79101.10142.32392.93032.87135.06534.73694.73984.3623
C72.47201.57142.91911.10141.10041.10142.85892.85903.00895.05535.06425.05534.5652
H84.26153.05692.45932.92913.90882.32392.85891.78241.10433.10412.51142.54032.1846
H94.26133.05682.45932.32323.90872.93032.85901.78241.10432.54032.51143.10412.1846
C104.05942.86691.84022.87044.10882.87133.00891.10431.10432.20372.19232.20371.5566
H115.57354.57662.97214.73936.13155.06535.05533.10412.54032.20371.78531.78531.1008
H126.22725.05593.75974.73596.15314.73695.06422.51142.51142.19231.78531.78531.1012
H135.57374.57662.97215.06446.13154.73985.05532.54033.10412.20371.78531.78531.1008
C145.36194.26382.77474.36155.66474.36234.56522.18462.18461.55661.10081.10121.1008

picture of s-Ethyl thioacetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 S3 119.950 O1 C2 C7 121.767
C2 S3 C10 102.893 C2 C7 H4 111.146
C2 C7 H5 108.364 C2 C7 H6 111.142
S3 C2 C7 118.283 S3 C10 H8 110.783
S3 C10 H9 110.783 S3 C10 C14 109.258
H4 C7 H5 108.871 H4 C7 H6 108.397
H5 C7 H6 108.870 H8 C10 H9 107.605
H8 C10 C14 109.187 H9 C10 C14 109.187
C10 C14 H11 110.879 C10 C14 H12 109.963
C10 C14 H13 110.879 H11 C14 H12 108.336
H11 C14 H13 108.366 H12 C14 H13 108.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.194      
2 C 0.050      
3 S 0.169      
4 H 0.083      
5 H 0.091      
6 H 0.083      
7 C -0.240      
8 H 0.076      
9 H 0.076      
10 C -0.211      
11 H 0.079      
12 H 0.079      
13 H 0.079      
14 C -0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.894 1.919 0.000 2.696
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.659 2.341 0.001
y 2.341 -40.830 -0.000
z 0.001 -0.000 -39.743
Traceless
 xyz
x -3.372 2.341 0.001
y 2.341 0.871 -0.000
z 0.001 -0.000 2.501
Polar
3z2-r25.003
x2-y2-2.829
xy2.341
xz0.001
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.668 -0.243 -0.001
y -0.243 4.672 0.000
z -0.001 0.000 2.817


<r2> (average value of r2) Å2
<r2> 254.523
(<r2>)1/2 15.954