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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-630.594937
Energy at 298.15K-630.603489
Nuclear repulsion energy293.584753
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 B1B95/6-31+G**
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 3190 3051 4.86      
2 A 3160 3023 21.27      
3 A 3153 3017 4.27      
4 A 3149 3012 17.38      
5 A 3135 2999 0.49      
6 A 3081 2948 17.14      
7 A 3073 2939 1.90      
8 A 3067 2934 24.00      
9 A 1795 1717 368.15      
10 A 1502 1437 4.62      
11 A 1494 1429 17.79      
12 A 1490 1426 12.06      
13 A 1483 1419 1.32      
14 A 1470 1406 22.22      
15 A 1414 1353 6.85      
16 A 1385 1325 25.73      
17 A 1293 1237 23.35      
18 A 1259 1205 0.00      
19 A 1159 1108 159.29      
20 A 1084 1037 3.36      
21 A 1047 1002 0.01      
22 A 1020 975 1.40      
23 A 1002 959 5.26      
24 A 964 923 45.41      
25 A 787 753 4.53      
26 A 706 675 0.37      
27 A 652 624 62.65      
28 A 523 500 1.66      
29 A 450 431 3.45      
30 A 386 370 2.00      
31 A 312 299 1.01      
32 A 257 246 0.06      
33 A 245 234 0.00      
34 A 168 160 1.01      
35 A 89 85 0.48      
36 A 26 25 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 25235.0 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 24139.8 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 B1B95/6-31+G**
ABC
0.21445 0.05487 0.04479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.354 -0.814 0.000
C2 1.398 -0.073 -0.000
S3 -0.230 -0.810 -0.000
H4 1.038 1.858 -0.882
H5 2.578 1.684 -0.000
H6 1.038 1.858 0.882
C7 1.519 1.429 0.000
H8 -1.231 1.207 0.886
H9 -1.232 1.207 -0.887
C10 -1.399 0.591 -0.000
H11 -3.006 -0.571 -0.884
H12 -3.535 0.866 0.000
H13 -3.006 -0.571 0.885
C14 -2.817 0.042 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20962.58393.10642.50793.10632.39274.21004.21024.00685.43806.12355.43785.2416
C21.20961.78692.15342.11662.15331.50643.05553.05582.87404.51935.02094.51924.2167
S32.58391.78693.08333.75593.08342.84112.42062.42061.82482.92353.70562.92352.7242
H43.10642.15343.08331.78341.76461.09292.94962.36102.88434.71744.76125.03714.3521
H52.50792.11663.75591.78341.78331.08933.94003.94044.12396.08686.16696.08655.6398
H63.10632.15333.08341.76461.78331.09292.36092.95052.88465.03754.76144.71724.3522
C72.39271.50642.84111.09291.08931.09292.89812.89853.03535.02565.08485.02544.5528
H84.21003.05552.42062.94963.94002.36092.89811.77301.09233.07342.49122.51192.1585
H94.21023.05582.42062.36103.94042.95052.89851.77301.09232.51192.49123.07342.1585
C104.00682.87401.82482.88434.12392.88463.03531.09231.09232.17182.15372.17181.5216
H115.43804.51932.92354.71746.08685.03755.02563.07342.51192.17181.76821.76901.0922
H126.12355.02093.70564.76126.16694.76145.08482.49122.49122.15371.76821.76821.0928
H135.43784.51922.92355.03716.08654.71725.02542.51193.07342.17181.76901.76821.0922
C145.24164.21672.72424.35215.63984.35224.55282.15852.15851.52161.09221.09281.0922

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 117.858 O1 C2 C7 123.149
C2 S3 C10 105.445 C2 C7 H4 110.876
C2 C7 H5 108.184 C2 C7 H6 110.873
S3 C2 C7 118.993 S3 C10 H8 109.583
S3 C10 H9 109.583 S3 C10 C14 108.651
H4 C7 H5 109.617 H4 C7 H6 107.667
H5 C7 H6 109.616 H8 C10 H9 108.503
H8 C10 C14 110.255 H9 C10 C14 110.254
C10 C14 H11 111.320 C10 C14 H12 109.847
C10 C14 H13 111.319 H11 C14 H12 108.041
H11 C14 H13 108.152 H12 C14 H13 108.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.358      
2 C 0.138      
3 S 0.211      
4 H 0.180      
5 H 0.201      
6 H 0.180      
7 C -0.499      
8 H 0.192      
9 H 0.192      
10 C -0.256      
11 H 0.181      
12 H 0.172      
13 H 0.181      
14 C -0.715      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.922 3.581 0.000 4.622
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.702 4.205 0.000
y 4.205 -45.178 0.000
z 0.000 0.000 -44.356
Traceless
 xyz
x -2.935 4.205 0.000
y 4.205 0.851 0.000
z 0.000 0.000 2.084
Polar
3z2-r24.168
x2-y2-2.524
xy4.205
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.869 -0.109 0.000
y -0.109 9.919 0.000
z 0.000 0.000 7.641


<r2> (average value of r2) Å2
<r2> 250.013
(<r2>)1/2 15.812