return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-630.683290
Energy at 298.15K 
Nuclear repulsion energy291.186187
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/6-31+G**
Rotational Constants (cm-1) from geometry optimized at B3LYP/6-31+G**
ABC
0.21214 0.05364 0.04387

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.367 -0.826 0.000
C2 1.415 -0.074 0.000
S3 -0.232 -0.812 -0.000
H4 1.076 1.871 -0.883
H5 2.617 1.679 -0.001
H6 1.078 1.871 0.885
C7 1.553 1.435 0.000
H8 -1.256 1.215 0.887
H9 -1.257 1.214 -0.889
C10 -1.423 0.599 -0.001
H11 -3.039 -0.570 -0.885
H12 -3.567 0.871 0.000
H13 -3.039 -0.569 0.887
C14 -2.849 0.044 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.21322.59953.11772.51713.11702.40244.25144.25204.04915.48436.17195.48395.2883
C21.21321.80512.16302.12542.16291.51493.09513.09582.91674.56835.07074.56784.2658
S32.59951.80513.11363.78473.11422.87002.43792.43791.84622.95313.73532.95312.7533
H43.11772.16303.11361.78581.76791.09483.00062.42382.94074.78534.83165.10134.4197
H52.51712.12543.78471.78581.78581.09143.99994.00104.18216.15086.23666.15025.7056
H63.11702.16293.11421.76791.78581.09482.42393.00432.94245.10314.83304.78504.4208
C72.40241.51492.87001.09481.09141.09482.95372.95523.09175.08865.15135.08774.6171
H84.25143.09512.43793.00063.99992.42392.95371.77591.09353.08372.49952.52202.1675
H94.25203.09582.43792.42384.00103.00432.95521.77591.09352.52202.49953.08372.1675
C104.04912.91671.84622.94074.18212.94243.09171.09351.09352.18182.16112.18181.5303
H115.48434.56832.95314.78536.15085.10315.08863.08372.52202.18181.77171.77281.0943
H126.17195.07073.73534.83166.23664.83305.15132.49952.49952.16111.77171.77171.0952
H135.48394.56782.95315.10136.15024.78505.08772.52203.08372.18181.77281.77171.0943
C145.28834.26582.75334.41975.70564.42084.61712.16752.16751.53031.09431.09521.0943

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 117.566 O1 C2 C7 123.053
C2 S3 C10 106.028 C2 C7 H4 110.937
C2 C7 H5 108.176 C2 C7 H6 110.927
S3 C2 C7 119.382 S3 C10 H8 109.372
S3 C10 H9 109.371 S3 C10 C14 108.904
H4 C7 H5 109.550 H4 C7 H6 107.695
H5 C7 H6 109.546 H8 C10 H9 108.597
H8 C10 C14 110.290 H9 C10 C14 110.290
C10 C14 H11 111.383 C10 C14 H12 109.684
C10 C14 H13 111.382 H11 C14 H12 108.036
H11 C14 H13 108.197 H12 C14 H13 108.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.367     -0.477
2 C 0.165     0.639
3 S 0.196     -0.281
4 H 0.169     0.156
5 H 0.188     0.165
6 H 0.169     0.156
7 C -0.478     -0.544
8 H 0.178     0.058
9 H 0.178     0.058
10 C -0.218     0.029
11 H 0.169     0.084
12 H 0.159     0.046
13 H 0.169     0.085
14 C -0.676     -0.175


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.907 3.634 -0.000 4.654
CHELPG        
AIM        
ESP -2.901 3.602 0.000 4.625


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.224 4.329 0.000
y 4.329 -45.727 0.000
z 0.000 0.000 -44.804
Traceless
 xyz
x -2.959 4.329 0.000
y 4.329 0.787 0.000
z 0.000 0.000 2.172
Polar
3z2-r24.344
x2-y2-2.497
xy4.329
xz0.000
yz0.000


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> 254.885
(<r2>)1/2 15.965