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

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-628.359840
Energy at 298.15K-628.368523
Nuclear repulsion energy289.539057
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 HF/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 3327 3004 22.55      
2 A 3319 2997 6.58      
3 A 3287 2968 1.94      
4 A 3283 2965 14.27      
5 A 3276 2957 37.16      
6 A 3257 2940 8.49      
7 A 3213 2901 2.10      
8 A 3202 2891 29.61      
9 A 1882 1700 355.07      
10 A 1658 1497 5.38      
11 A 1651 1491 11.33      
12 A 1647 1487 2.78      
13 A 1633 1475 21.23      
14 A 1619 1462 30.10      
15 A 1588 1434 6.51      
16 A 1570 1417 22.95      
17 A 1449 1308 38.60      
18 A 1409 1272 0.00      
19 A 1264 1142 147.64      
20 A 1188 1073 5.45      
21 A 1167 1054 1.73      
22 A 1162 1049 2.63      
23 A 1074 970 12.65      
24 A 1055 952 45.13      
25 A 883 797 5.35      
26 A 704 635 2.17      
27 A 668 603 74.00      
28 A 556 502 7.78      
29 A 487 440 5.46      
30 A 391 353 3.32      
31 A 322 291 0.90      
32 A 252 227 0.15      
33 A 166 149 1.66      
34 A 163 148 0.04      
35 A 65 58 0.26      
36 A 63 57 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 26948.0 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 24331.4 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 HF/6-31G
ABC
0.21100 0.05264 0.04313

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.386 -0.812 0.000
C2 1.438 -0.066 0.000
S3 -0.241 -0.830 -0.000
H4 1.110 1.861 -0.876
H5 2.628 1.670 -0.001
H6 1.111 1.861 0.876
C7 1.575 1.428 -0.000
H8 -1.276 1.216 0.880
H9 -1.276 1.216 -0.880
C10 -1.452 0.617 -0.000
H11 -3.051 -0.554 -0.876
H12 -3.584 0.869 0.000
H13 -3.050 -0.553 0.877
C14 -2.869 0.054 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20682.62743.08982.49453.08932.38284.27754.27814.09545.51326.20225.51285.3261
C21.20681.84502.14242.10482.14231.50033.12753.12802.96924.59945.10794.59904.3085
S32.62741.84503.13653.80593.13712.89842.45592.45591.88682.95593.74982.95602.7727
H43.08982.14243.13651.76281.75261.08253.03172.47202.97954.81054.87655.11974.4567
H52.49452.10483.80591.76281.76271.08004.02734.02774.21326.16096.26276.16075.7292
H63.08932.14233.13711.75261.76271.08252.47223.03312.98035.12054.87714.81074.4573
C72.38281.50032.89841.08251.08001.08252.99142.99193.13385.10835.18905.10804.6516
H84.27753.12752.45593.03174.02732.47222.99141.75981.07873.06012.49372.50552.1586
H94.27813.12802.45592.47204.02773.03312.99191.75981.07872.50562.49363.06012.1585
C104.09542.96921.88682.97954.21322.98033.13381.07871.07872.16672.14682.16671.5247
H115.51324.59942.95594.81056.16095.12055.10833.06012.50562.16671.75431.75381.0823
H126.20225.10793.74984.87656.26274.87715.18902.49372.49362.14681.75431.75431.0840
H135.51284.59902.95605.11976.16074.81075.10802.50553.06012.16671.75381.75431.0823
C145.32614.30852.77274.45675.72924.45734.65162.15862.15851.52471.08231.08401.0823

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 117.307 O1 C2 C7 122.962
C2 S3 C10 105.429 C2 C7 H4 111.053
C2 C7 H5 108.213 C2 C7 H6 111.048
S3 C2 C7 119.731 S3 C10 H8 108.747
S3 C10 H9 108.747 S3 C10 C14 108.264
H4 C7 H5 109.207 H4 C7 H6 108.089
H5 C7 H6 109.203 H8 C10 H9 109.313
H8 C10 C14 110.857 H9 C10 C14 110.857
C10 C14 H11 111.292 C10 C14 H12 109.605
C10 C14 H13 111.292 H11 C14 H12 108.157
H11 C14 H13 108.229 H12 C14 H13 108.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.503 -0.586    
2 C 0.203 0.820    
3 S 0.316 -0.415    
4 H 0.195 0.127    
5 H 0.224 0.132    
6 H 0.195 0.127    
7 C -0.540 -0.436    
8 H 0.198 0.019    
9 H 0.198 0.019    
10 C -0.564 0.138    
11 H 0.183 0.052    
12 H 0.172 0.003    
13 H 0.183 0.052    
14 C -0.459 -0.052    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.941 4.467 -0.000 5.348
CHELPG -2.913 4.374 -0.001 5.255
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.754 5.062 -0.003
y 5.062 -46.692 0.001
z -0.003 0.001 -45.078
Traceless
 xyz
x -2.868 5.062 -0.003
y 5.062 0.224 0.001
z -0.003 0.001 2.644
Polar
3z2-r25.289
x2-y2-2.062
xy5.062
xz-0.003
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.058 -0.624 0.001
y -0.624 8.360 0.000
z 0.001 0.000 6.021


<r2> (average value of r2) Å2
<r2> 258.682
(<r2>)1/2 16.084