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: B3PW91/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-630.645374
Energy at 298.15K-630.653772
Nuclear repulsion energy293.419496
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/cc-pVTZ
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 3154 3032 6.37      
2 A 3129 3009 21.64      
3 A 3120 3000 4.79      
4 A 3115 2995 17.54      
5 A 3105 2985 0.05      
6 A 3061 2943 16.68      
7 A 3049 2932 1.45      
8 A 3043 2926 21.94      
9 A 1783 1714 327.72      
10 A 1496 1438 3.47      
11 A 1487 1430 10.26      
12 A 1477 1420 1.20      
13 A 1466 1410 13.17      
14 A 1453 1397 20.04      
15 A 1408 1354 4.26      
16 A 1373 1320 23.42      
17 A 1291 1241 18.96      
18 A 1269 1221 0.02      
19 A 1148 1104 162.15      
20 A 1075 1033 4.73      
21 A 1042 1002 0.02      
22 A 1017 978 1.74      
23 A 996 958 3.55      
24 A 945 908 46.56      
25 A 790 759 4.55      
26 A 699 672 0.25      
27 A 643 618 64.24      
28 A 517 497 1.56      
29 A 445 428 3.11      
30 A 373 358 1.85      
31 A 299 287 1.02      
32 A 248 238 0.09      
33 A 155 149 1.00      
34 A 135 130 0.05      
35 A 93 89 0.42      
36 A 58 55 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 24975.6 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 24016.5 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/cc-pVTZ
ABC
0.21576 0.05449 0.04459

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.348 -0.825 0.000
C2 1.408 -0.076 0.000
S3 -0.233 -0.799 -0.000
H4 1.062 1.856 -0.880
H5 2.600 1.672 -0.001
H6 1.063 1.855 0.881
C7 1.540 1.423 0.000
H8 -1.243 1.210 0.884
H9 -1.244 1.209 -0.886
C10 -1.411 0.596 -0.001
H11 -3.010 -0.576 -0.882
H12 -3.548 0.856 0.000
H13 -3.009 -0.575 0.884
C14 -2.826 0.038 0.001

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20272.58083.10122.50993.10062.38904.22104.22184.01925.43606.13165.43545.2454
C21.20271.79252.15052.11552.15041.50463.07533.07632.89794.53255.04294.53194.2348
S32.58081.79253.08173.75863.08242.84272.41612.41611.82622.92253.70602.92262.7249
H43.10122.15053.08171.78101.76091.09122.97302.39452.91174.74304.79885.05894.3809
H52.50992.11553.75861.78101.78101.08813.96983.97114.15306.10746.20216.10655.6661
H63.10062.15043.08241.76091.78101.09132.39442.97702.91335.06084.80014.74244.3819
C72.38901.50462.84271.09121.08811.09132.92782.92963.06565.04805.12045.04704.5806
H84.22103.07532.41612.97303.96982.39442.92781.77021.09003.07122.49462.51132.1587
H94.22183.07632.41612.39453.97112.97702.92961.77021.09002.51142.49463.07122.1587
C104.01922.89791.82622.91174.15302.91333.06561.09001.09002.16932.15282.16931.5203
H115.43604.53252.92254.74306.10745.06085.04803.07122.51142.16931.76631.76561.0908
H126.13165.04293.70604.79886.20214.80015.12042.49462.49462.15281.76631.76631.0916
H135.43544.53192.92265.05896.10654.74245.04702.51133.07122.16931.76561.76631.0908
C145.24544.23482.72494.38095.66614.38194.58062.15872.15871.52031.09081.09161.0908

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 117.650 O1 C2 C7 123.489
C2 S3 C10 106.410 C2 C7 H4 110.873
C2 C7 H5 108.289 C2 C7 H6 110.862
S3 C2 C7 118.862 S3 C10 H8 109.277
S3 C10 H9 109.278 S3 C10 C14 108.682
H4 C7 H5 109.618 H4 C7 H6 107.577
H5 C7 H6 109.613 H8 C10 H9 108.585
H8 C10 C14 110.498 H9 C10 C14 110.499
C10 C14 H11 111.300 C10 C14 H12 109.937
C10 C14 H13 111.300 H11 C14 H12 108.060
H11 C14 H13 108.061 H12 C14 H13 108.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.260      
2 C 0.182      
3 S -0.048      
4 H 0.106      
5 H 0.121      
6 H 0.106      
7 C -0.277      
8 H 0.109      
9 H 0.109      
10 C -0.174      
11 H 0.105      
12 H 0.099      
13 H 0.105      
14 C -0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.689 3.380 -0.000 4.319
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.661 3.926 0.000
y 3.926 -44.724 0.001
z 0.000 0.001 -43.919
Traceless
 xyz
x -2.339 3.926 0.000
y 3.926 0.566 0.001
z 0.000 0.001 1.773
Polar
3z2-r23.547
x2-y2-1.937
xy3.926
xz0.000
yz0.001


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> 250.609
(<r2>)1/2 15.831