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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-627.421774
Energy at 298.15K-627.430056
Nuclear repulsion energy285.834566
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/3-21G
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 3163 3052 19.30      
2 A 3158 3047 5.90      
3 A 3131 3021 1.59      
4 A 3129 3019 4.04      
5 A 3123 3014 18.34      
6 A 3096 2987 10.16      
7 A 3067 2959 0.43      
8 A 3059 2951 18.43      
9 A 1768 1706 250.86      
10 A 1568 1513 5.45      
11 A 1560 1506 11.13      
12 A 1542 1488 18.69      
13 A 1533 1480 0.52      
14 A 1516 1463 28.12      
15 A 1467 1416 8.36      
16 A 1436 1385 28.51      
17 A 1317 1271 30.74      
18 A 1311 1265 0.12      
19 A 1129 1089 119.14      
20 A 1089 1051 6.12      
21 A 1071 1033 4.65      
22 A 1060 1023 1.21      
23 A 983 949 8.57      
24 A 926 894 83.66      
25 A 810 781 7.61      
26 A 636 614 0.55      
27 A 568 548 87.19      
28 A 513 495 1.34      
29 A 414 400 6.10      
30 A 344 332 0.40      
31 A 293 283 2.83      
32 A 250 241 0.05      
33 A 164 158 0.48      
34 A 149 144 0.82      
35 A 80 77 0.10      
36 A 59 57 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25241.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 24355.9 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/3-21G
ABC
0.20621 0.05137 0.04211

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.460 -0.798 -0.000
C2 1.495 -0.056 -0.000
S3 -0.241 -0.845 0.000
H4 1.012 1.848 -0.886
H5 2.564 1.786 -0.001
H6 1.014 1.847 0.887
C7 1.523 1.456 0.000
H8 -1.295 1.219 0.894
H9 -1.295 1.218 -0.895
C10 -1.473 0.619 -0.000
H11 -3.057 -0.584 -0.888
H12 -3.626 0.846 0.000
H13 -3.056 -0.584 0.889
C14 -2.892 0.032 -0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.21712.70133.14312.58583.14252.44114.35544.35524.18015.59166.30395.59135.4158
C21.21711.90682.15452.12992.15441.51273.19553.19553.04364.66745.19974.66714.3877
S32.70131.90683.09933.84603.09982.89952.48432.48421.91332.96403.78402.96362.7923
H43.14312.15453.09931.78791.77271.09482.98052.39162.91004.74004.82665.06084.3954
H52.58582.12993.84601.78791.78791.09244.00224.00234.20256.16446.26106.16435.7311
H63.14252.15443.09981.77271.78791.09492.39282.98362.91195.06284.82834.74094.3970
C72.44111.51272.89951.09481.09241.09492.96582.96643.11055.09165.18465.09124.6387
H84.35543.19552.48432.98054.00222.39282.96581.78831.09143.08722.52362.52072.1810
H94.35523.19552.48422.39164.00232.98362.96641.78831.09142.52042.52393.08722.1809
C104.18013.04361.91332.91004.20252.91193.11051.09141.09142.17822.16502.17821.5355
H115.59164.66742.96404.74006.16445.06285.09163.08722.52042.17821.77791.77701.0939
H126.30395.19973.78404.82666.26104.82835.18462.52362.52392.16501.77791.77791.0962
H135.59134.66712.96365.06086.16434.74095.09122.52073.08722.17821.77701.77791.0940
C145.41584.38772.79234.39545.73114.39704.63872.18102.18091.53551.09391.09621.0940

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 118.013 O1 C2 C7 126.490
C2 S3 C10 105.639 C2 C7 H4 110.407
C2 C7 H5 108.614 C2 C7 H6 110.397
S3 C2 C7 115.497 S3 C10 H8 108.423
S3 C10 H9 108.417 S3 C10 C14 107.623
H4 C7 H5 109.656 H4 C7 H6 108.105
H5 C7 H6 109.653 H8 C10 H9 110.027
H8 C10 C14 111.123 H9 C10 C14 111.121
C10 C14 H11 110.750 C10 C14 H12 109.575
C10 C14 H13 110.751 H11 C14 H12 108.545
H11 C14 H13 108.619 H12 C14 H13 108.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.408     -0.386
2 C 0.184     0.646
3 S 0.264     -0.362
4 H 0.231     0.194
5 H 0.240     0.198
6 H 0.231     0.194
7 C -0.640     -0.674
8 H 0.227     0.085
9 H 0.227     0.085
10 C -0.632     -0.015
11 H 0.215     0.126
12 H 0.204     0.080
13 H 0.215     0.127
14 C -0.560     -0.297


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.024 3.757 0.000 4.268
CHELPG        
AIM        
ESP -2.021 3.720 0.000 4.234


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.838 3.497 0.002
y 3.497 -45.432 0.000
z 0.002 0.000 -44.598
Traceless
 xyz
x -0.823 3.497 0.002
y 3.497 -0.214 0.000
z 0.002 0.000 1.037
Polar
3z2-r22.075
x2-y2-0.406
xy3.497
xz0.002
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.705 -0.125 -0.001
y -0.125 8.344 -0.000
z -0.001 -0.000 5.623


<r2> (average value of r2) Å2
<r2> 262.655
(<r2>)1/2 16.207