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: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-630.440219
Energy at 298.15K-630.448666
HF Energy-630.080343
Nuclear repulsion energy293.041809
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 B2PLYP/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 3168 3039 6.74      
2 A 3145 3017 24.62      
3 A 3135 3008 3.46      
4 A 3130 3003 18.95      
5 A 3122 2996 0.08      
6 A 3079 2954 16.69      
7 A 3065 2940 1.21      
8 A 3059 2935 21.57      
9 A 1749 1678 287.91      
10 A 1517 1455 2.89      
11 A 1508 1447 9.49      
12 A 1498 1437 0.91      
13 A 1489 1429 12.30      
14 A 1475 1415 20.68      
15 A 1426 1368 3.38      
16 A 1392 1335 18.79      
17 A 1305 1252 21.43      
18 A 1283 1231 0.00      
19 A 1155 1108 149.11      
20 A 1082 1038 3.51      
21 A 1053 1010 0.07      
22 A 1031 989 1.10      
23 A 1000 959 3.18      
24 A 950 912 54.48      
25 A 799 767 3.59      
26 A 697 669 0.23      
27 A 640 614 65.94      
28 A 517 496 1.79      
29 A 446 428 3.14      
30 A 373 358 1.45      
31 A 304 292 1.07      
32 A 250 240 0.10      
33 A 160 153 0.95      
34 A 147 141 0.04      
35 A 89 85 0.40      
36 A 59 56 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 25145.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 24125.0 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 B2PLYP/cc-pVTZ
ABC
0.21452 0.05445 0.04450

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.359 -0.814 0.000
C2 1.408 -0.072 -0.000
S3 -0.233 -0.812 -0.000
H4 1.038 1.853 -0.880
H5 2.576 1.690 -0.000
H6 1.039 1.853 0.880
C7 1.522 1.431 -0.000
H8 -1.232 1.205 0.884
H9 -1.232 1.205 -0.884
C10 -1.405 0.596 -0.000
H11 -3.006 -0.570 -0.881
H12 -3.539 0.862 0.000
H13 -3.006 -0.570 0.882
C14 -2.823 0.042 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20642.59223.10362.51273.10322.39574.21354.21394.01955.44316.13205.44285.2524
C21.20641.79952.14902.11442.14901.50753.06273.06292.89074.52835.03424.52824.2320
S32.59221.79953.08133.76173.08152.84762.41852.41851.83192.92023.70622.92022.7272
H43.10362.14903.08131.77901.75931.08892.94702.36132.88534.71484.76545.03294.3549
H52.51272.11443.76171.77901.77901.08593.93943.93954.12866.08646.17106.08645.6450
H63.10322.14903.08151.75931.77901.08892.36152.94762.88565.03334.76574.71494.3552
C72.39571.50752.84761.08891.08591.08892.90082.90103.04335.02795.09255.02784.5611
H84.21353.06272.41852.94703.93942.36152.90081.76811.08753.06822.49432.50932.1600
H94.21393.06292.41852.36133.93952.94762.90101.76811.08752.50932.49423.06822.1600
C104.01952.89071.83192.88534.12862.88563.04331.08751.08752.16782.15082.16781.5224
H115.44314.52832.92024.71486.08645.03335.02793.06822.50932.16781.76411.76331.0884
H126.13205.03423.70624.76546.17104.76575.09252.49432.49422.15081.76411.76411.0893
H135.44284.52822.92025.03296.08644.71495.02782.50933.06822.16781.76331.76411.0884
C145.25244.23202.72724.35495.64504.35524.56112.16002.16001.52241.08841.08931.0884

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 117.814 O1 C2 C7 123.573
C2 S3 C10 105.502 C2 C7 H4 110.695
C2 C7 H5 108.131 C2 C7 H6 110.690
S3 C2 C7 118.613 S3 C10 H8 109.205
S3 C10 H9 109.205 S3 C10 C14 108.438
H4 C7 H5 109.775 H4 C7 H6 107.777
H5 C7 H6 109.773 H8 C10 H9 108.762
H8 C10 C14 110.603 H9 C10 C14 110.603
C10 C14 H11 111.174 C10 C14 H12 109.771
C10 C14 H13 111.174 H11 C14 H12 108.209
H11 C14 H13 108.202 H12 C14 H13 108.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.301      
2 C 0.228      
3 S -0.052      
4 H 0.112      
5 H 0.137      
6 H 0.112      
7 C -0.309      
8 H 0.113      
9 H 0.113      
10 C -0.175      
11 H 0.111      
12 H 0.109      
13 H 0.111      
14 C -0.309      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.078 0.021 0.001
y 0.021 9.985 0.000
z 0.001 0.000 7.316


<r2> (average value of r2) Å2
<r2> 251.333
(<r2>)1/2 15.853