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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-53.460179
Energy at 298.15K-53.468441
Nuclear repulsion energy121.838356
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3128 3048 14.95      
2 A 3114 3035 51.65      
3 A 3094 3015 8.57      
4 A 3086 3007 4.05      
5 A 3080 3001 36.52      
6 A 3030 2953 24.47      
7 A 3008 2931 4.08      
8 A 2996 2919 39.45      
9 A 1652 1610 298.60      
10 A 1525 1486 5.60      
11 A 1515 1477 12.91      
12 A 1498 1460 19.65      
13 A 1498 1460 1.25      
14 A 1484 1446 38.34      
15 A 1440 1403 9.54      
16 A 1415 1378 23.07      
17 A 1308 1274 36.75      
18 A 1274 1241 0.02      
19 A 1144 1115 134.63      
20 A 1082 1054 4.77      
21 A 1051 1024 0.34      
22 A 1043 1016 0.87      
23 A 996 970 9.08      
24 A 949 925 66.53      
25 A 802 781 6.64      
26 A 642 625 0.41      
27 A 601 586 78.75      
28 A 494 482 1.93      
29 A 431 420 3.93      
30 A 353 344 1.88      
31 A 290 282 0.99      
32 A 247 241 0.06      
33 A 148 144 1.13      
34 A 141 137 0.14      
35 A 71 69 0.62      
36 A 51 49 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24838.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 24205.2 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/CEP-121G
ABC
0.20302 0.05095 0.04170

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.447 -0.977 -0.000
C2 1.457 -0.222 -0.000
S3 -0.247 -1.017 0.000
H4 1.077 1.729 -0.886
H5 2.622 1.572 -0.001
H6 1.079 1.729 0.888
C7 1.562 1.303 0.000
H8 -1.306 1.056 0.894
H9 -1.306 1.055 -0.895
C10 -1.485 0.450 -0.000
H11 -3.098 -0.744 -0.888
H12 -3.646 0.694 -0.000
H13 -3.097 -0.743 0.889
C14 -2.916 -0.128 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.24542.69463.16032.55533.15972.44594.36114.36124.18305.62016.31775.62015.4300
C21.24541.88022.17652.13942.17641.52873.17253.17293.01754.66945.18394.66924.3739
S32.69461.88023.17513.86473.17562.94212.49322.49321.91902.99803.80462.99802.8130
H43.16032.17653.17511.78781.77431.09683.04992.47722.99804.85274.91575.16674.4925
H52.55532.13943.86471.78781.78781.09354.06174.06224.25796.23466.32916.23435.7934
H63.15972.17643.17561.77431.78781.09692.47783.05322.99975.16844.91734.85294.4938
C72.44591.52872.94211.09681.09351.09693.01443.01543.16465.16695.24355.16634.7015
H84.36113.17252.49323.04994.06172.47783.01441.78881.09503.10262.53062.53902.1891
H94.36123.17292.49322.47724.06223.05323.01541.78881.09502.53912.53053.10262.1891
C104.18303.01751.91902.99804.25792.99973.16461.09501.09502.19422.17432.19421.5433
H115.62014.66942.99804.85276.23465.16845.16693.10262.53912.19421.77691.77751.0964
H126.31775.18393.80464.91576.32914.91735.24352.53062.53052.17431.77691.77691.0988
H135.62014.66922.99805.16676.23434.85295.16632.53903.10262.19421.77751.77691.0964
C145.43004.37392.81304.49255.79344.49384.70152.18912.18911.54331.09641.09881.0964

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 117.665 O1 C2 C7 123.369
C2 S3 C10 105.162 C2 C7 H4 110.915
C2 C7 H5 108.202 C2 C7 H6 110.908
S3 C2 C7 118.966 S3 C10 H8 108.511
S3 C10 H9 108.510 S3 C10 C14 108.186
H4 C7 H5 109.420 H4 C7 H6 107.961
H5 C7 H6 109.418 H8 C10 H9 109.534
H8 C10 C14 111.010 H9 C10 C14 111.010
C10 C14 H11 111.324 C10 C14 H12 109.620
C10 C14 H13 111.324 H11 C14 H12 108.078
H11 C14 H13 108.303 H12 C14 H13 108.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.135      
2 C -0.120      
3 S 0.307      
4 H 0.172      
5 H 0.192      
6 H 0.173      
7 C -0.491      
8 H 0.180      
9 H 0.180      
10 C -0.509      
11 H 0.171      
12 H 0.157      
13 H 0.171      
14 C -0.447      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.897 4.004 0.000 4.942
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.675 5.100 0.002
y 5.100 -46.358 0.000
z 0.002 0.000 -44.081
Traceless
 xyz
x -2.456 5.100 0.002
y 5.100 -0.480 0.000
z 0.002 0.000 2.936
Polar
3z2-r25.871
x2-y2-1.318
xy5.100
xz0.002
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.462 -0.282 -0.003
y -0.282 9.730 0.005
z -0.003 0.005 6.963


<r2> (average value of r2) Å2
<r2> 208.047
(<r2>)1/2 14.424