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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-630.428115
Energy at 298.15K-630.436457
Nuclear repulsion energy287.713835
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 B3PW91/6-31G
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 3185 3051 6.07      
2 A 3175 3040 27.01      
3 A 3151 3018 4.51      
4 A 3150 3016 0.81      
5 A 3147 3013 20.40      
6 A 3096 2965 15.83      
7 A 3068 2938 1.52      
8 A 3063 2933 24.69      
9 A 1735 1662 276.21      
10 A 1545 1480 7.23      
11 A 1536 1471 13.28      
12 A 1524 1459 0.56      
13 A 1517 1452 21.77      
14 A 1500 1437 33.13      
15 A 1464 1402 10.34      
16 A 1434 1373 29.53      
17 A 1329 1273 27.58      
18 A 1301 1246 0.09      
19 A 1163 1114 154.82      
20 A 1103 1056 6.10      
21 A 1072 1027 0.04      
22 A 1059 1014 3.99      
23 A 1024 981 9.95      
24 A 972 931 52.35      
25 A 821 786 8.27      
26 A 660 632 0.20      
27 A 617 591 78.55      
28 A 511 489 1.91      
29 A 441 422 4.34      
30 A 365 349 1.33      
31 A 299 287 1.38      
32 A 252 241 0.07      
33 A 152 145 1.18      
34 A 140 134 0.29      
35 A 79 76 0.37      
36 A 55 52 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 25350.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 24278.5 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 B3PW91/6-31G
ABC
0.20827 0.05220 0.04275

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.424 -0.806 -0.000
C2 1.452 -0.057 -0.000
S3 -0.237 -0.838 0.000
H4 1.054 1.868 -0.884
H5 2.597 1.726 -0.001
H6 1.056 1.867 0.886
C7 1.542 1.444 0.000
H8 -1.280 1.218 0.890
H9 -1.280 1.217 -0.892
C10 -1.459 0.610 -0.001
H11 -3.057 -0.573 -0.886
H12 -3.601 0.864 -0.000
H13 -3.057 -0.571 0.887
C14 -2.875 0.044 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.22772.66113.13202.53813.13112.41664.31404.31414.13375.55776.25285.55775.3666
C21.22771.86062.15492.11882.15481.50293.14323.14352.98654.62435.13644.62414.3276
S32.66111.86063.12603.82163.12682.89312.47172.47171.89552.96863.77092.96862.7815
H43.13202.15493.12601.78301.76971.09523.00272.42352.94624.78154.84385.09794.4211
H52.53812.11883.82161.78301.78301.09214.00994.01054.20676.16746.25776.16705.7242
H63.13112.15483.12681.76971.78301.09522.42473.00732.94875.10064.84624.78204.4231
C72.41661.50292.89311.09521.09211.09522.96712.96843.11465.09935.17565.09864.6330
H84.31403.14322.47173.00274.00992.42472.96711.78221.09333.08552.51152.52222.1715
H94.31413.14352.47172.42354.01053.00732.96841.78221.09332.52222.51153.08552.1715
C104.13372.98651.89552.94624.20672.94873.11461.09331.09332.17632.15712.17641.5245
H115.55774.62432.96864.78156.16745.10065.09933.08552.52222.17631.77311.77271.0944
H126.25285.13643.77094.84386.25774.84625.17562.51152.51152.15711.77311.77311.0962
H135.55774.62412.96865.09796.16704.78205.09862.52223.08552.17641.77271.77311.0944
C145.36664.32762.78154.42115.72424.42314.63302.17152.17151.52451.09441.09621.0944

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 117.538 O1 C2 C7 124.190
C2 S3 C10 105.327 C2 C7 H4 111.105
C2 C7 H5 108.425 C2 C7 H6 111.092
S3 C2 C7 118.271 S3 C10 H8 108.594
S3 C10 H9 108.592 S3 C10 C14 108.351
H4 C7 H5 109.204 H4 C7 H6 107.785
H5 C7 H6 109.199 H8 C10 H9 109.189
H8 C10 C14 111.024 H9 C10 C14 111.023
C10 C14 H11 111.344 C10 C14 H12 109.708
C10 C14 H13 111.344 H11 C14 H12 108.081
H11 C14 H13 108.165 H12 C14 H13 108.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.387      
2 C 0.108      
3 S 0.287      
4 H 0.199      
5 H 0.216      
6 H 0.199      
7 C -0.542      
8 H 0.201      
9 H 0.201      
10 C -0.556      
11 H 0.189      
12 H 0.175      
13 H 0.189      
14 C -0.479      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.682 4.014 0.000 4.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.822 4.314 0.003
y 4.314 -45.095 0.000
z 0.003 0.000 -44.188
Traceless
 xyz
x -2.180 4.314 0.003
y 4.314 0.410 0.000
z 0.003 0.000 1.771
Polar
3z2-r23.541
x2-y2-1.727
xy4.314
xz0.003
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> 259.685
(<r2>)1/2 16.115