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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G3B3
 hartrees
Energy at 0K-630.328615
Energy at 298.15K-630.319465
Nuclear repulsion energy 
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/6-31G*
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 3166 3041 8.37      
2 A 3142 3017 29.53      
3 A 3128 3004 6.13      
4 A 3127 3003 22.23      
5 A 3117 2994 0.56      
6 A 3073 2951 19.97      
7 A 3062 2940 0.71      
8 A 3059 2938 23.40      
9 A 1801 1729 294.99      
10 A 1533 1472 2.58      
11 A 1524 1464 8.43      
12 A 1515 1455 1.96      
13 A 1504 1444 13.14      
14 A 1491 1432 18.85      
15 A 1443 1385 2.87      
16 A 1407 1351 17.77      
17 A 1322 1270 30.40      
18 A 1290 1239 0.02      
19 A 1154 1108 152.23      
20 A 1086 1042 6.03      
21 A 1063 1021 0.13      
22 A 1036 995 2.55      
23 A 998 959 3.87      
24 A 952 914 53.53      
25 A 803 771 5.00      
26 A 687 660 0.03      
27 A 634 609 65.01      
28 A 512 492 2.60      
29 A 443 425 3.23      
30 A 371 356 1.55      
31 A 301 289 1.08      
32 A 257 247 0.09      
33 A 157 150 1.03      
34 A 136 131 0.12      
35 A 88 85 0.30      
36 A 57 55 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 25219.1 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 24217.9 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 B3LYP/6-31G*
ABC
0.21207 0.05356 0.04382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.367 -0.828 -0.000
C2 1.421 -0.075 -0.000
S3 -0.235 -0.811 -0.000
H4 1.079 1.872 -0.884
H5 2.619 1.680 -0.000
H6 1.080 1.872 0.885
C7 1.555 1.435 0.000
H8 -1.259 1.218 0.887
H9 -1.259 1.218 -0.888
C10 -1.425 0.599 -0.000
H11 -3.037 -0.572 -0.886
H12 -3.570 0.869 -0.000
H13 -3.037 -0.571 0.887
C14 -2.850 0.043 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20942.60263.11962.52093.11922.40414.25714.25724.05215.48306.17525.48295.2895
C21.20941.81172.16582.12602.16571.51623.10483.10492.92464.57235.07934.57224.2723
S32.60261.81173.11513.78863.11542.87192.43932.43931.84512.94883.73392.94882.7506
H43.11962.16583.11511.78651.76881.09543.00462.42752.94424.78674.83735.10354.4228
H52.52092.12603.78861.78651.78651.09214.00534.00544.18636.15276.24266.15265.7092
H63.11922.16573.11541.76881.78651.09542.42803.00622.94515.10444.83824.78704.4236
C72.40411.51622.87191.09541.09211.09542.95852.95893.09515.08965.15665.08944.6199
H84.25713.10482.43933.00464.00532.42802.95851.77451.09423.08402.50022.52282.1678
H94.25723.10492.43932.42754.00543.00622.95891.77451.09422.52282.50023.08402.1678
C104.05212.92461.84512.94424.18632.94513.09511.09421.09422.18102.16202.18101.5299
H115.48304.57232.94884.78676.15275.10445.08963.08402.52282.18101.77301.77311.0947
H126.17525.07933.73394.83736.24264.83825.15662.50022.50022.16201.77301.77301.0957
H135.48294.57222.94885.10356.15264.78705.08942.52283.08402.18101.77311.77301.0947
C145.28954.27232.75064.42285.70924.42364.61992.16782.16781.52991.09471.09571.0947

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 117.578 O1 C2 C7 123.385
C2 S3 C10 106.215 C2 C7 H4 111.026
C2 C7 H5 108.085 C2 C7 H6 111.019
S3 C2 C7 119.036 S3 C10 H8 109.517
S3 C10 H9 109.517 S3 C10 C14 108.818
H4 C7 H5 109.510 H4 C7 H6 107.681
H5 C7 H6 109.507 H8 C10 H9 108.368
H8 C10 C14 110.304 H9 C10 C14 110.304
C10 C14 H11 111.322 C10 C14 H12 109.754
C10 C14 H13 111.322 H11 C14 H12 108.083
H11 C14 H13 108.160 H12 C14 H13 108.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.412 -0.424   -0.415
2 C 0.284 0.563   0.588
3 S 0.122 -0.302   -0.294
4 H 0.178 0.109   0.157
5 H 0.192 0.112   0.164
6 H 0.178 0.109   0.157
7 C -0.518 -0.360   -0.545
8 H 0.177 0.027   0.060
9 H 0.177 0.027   0.060
10 C -0.421 0.097   0.032
11 H 0.171 0.051   0.095
12 H 0.158 0.014   0.056
13 H 0.171 0.051   0.094
14 C -0.455 -0.075   -0.210


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.512 3.461 0.000 4.276
CHELPG -2.500 3.390 -0.000 4.212
AIM        
ESP -2.526 3.441 0.000 4.269


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 254.368
(<r2>)1/2 15.949