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: B3PW91/6-31G*

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-630.524474
Energy at 298.15K-630.532855
Nuclear repulsion energy292.266860
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 3183 3045 5.95      
2 A 3158 3021 23.72      
3 A 3146 3010 5.20      
4 A 3144 3008 18.92      
5 A 3131 2995 1.47      
6 A 3081 2947 19.18      
7 A 3071 2938 0.82      
8 A 3068 2935 22.20      
9 A 1815 1736 298.12      
10 A 1528 1462 3.70      
11 A 1520 1454 10.44      
12 A 1508 1443 1.64      
13 A 1498 1433 15.44      
14 A 1484 1419 20.23      
15 A 1437 1375 5.31      
16 A 1401 1340 24.25      
17 A 1320 1263 25.21      
18 A 1288 1232 0.04      
19 A 1160 1110 162.95      
20 A 1089 1042 7.85      
21 A 1064 1017 0.08      
22 A 1031 986 2.96      
23 A 1008 965 4.10      
24 A 957 916 42.80      
25 A 803 768 6.17      
26 A 705 675 0.21      
27 A 646 618 61.29      
28 A 514 492 2.23      
29 A 446 427 3.21      
30 A 375 359 1.77      
31 A 302 289 1.02      
32 A 260 249 0.10      
33 A 157 150 1.08      
34 A 136 130 0.15      
35 A 89 85 0.32      
36 A 55 53 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 25286.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 24191.3 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
0.21373 0.05411 0.04426

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 2.357 -0.829 -0.000
C2 1.412 -0.076 -0.000
S3 -0.235 -0.804 0.000
H4 1.071 1.867 -0.884
H5 2.611 1.674 -0.000
H6 1.072 1.867 0.885
C7 1.546 1.429 0.000
H8 -1.252 1.217 0.887
H9 -1.252 1.216 -0.888
C10 -1.415 0.597 -0.000
H11 -3.021 -0.576 -0.886
H12 -3.557 0.863 -0.000
H13 -3.021 -0.575 0.887
C14 -2.835 0.039 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20842.59163.11542.51623.11502.39934.24244.24254.03255.45636.15125.45625.2636
C21.20841.80012.16202.12142.16191.51123.09113.09142.90594.54825.05694.54804.2481
S32.59161.80013.10163.77303.10192.85612.43002.43001.83182.93283.71702.93282.7332
H43.11542.16203.10161.78581.76901.09532.99272.41262.92814.76584.81755.08374.4019
H52.51622.12143.77301.78581.78581.09213.98963.98994.16736.12896.22096.12875.6855
H63.11502.16193.10191.76901.78581.09532.41302.99462.92925.08484.81854.76604.4027
C72.39931.51122.85611.09531.09211.09532.94332.94393.07605.06625.13485.06594.5962
H84.24243.09112.43002.99273.98962.41302.94331.77521.09473.08032.49512.51812.1630
H94.24253.09142.43002.41263.98992.99462.94391.77521.09472.51812.49513.08032.1630
C104.03252.90591.83182.92814.16732.92923.07601.09471.09472.17722.15852.17721.5253
H115.45634.54822.93284.76586.12895.08485.06623.08032.51812.17721.77271.77291.0947
H126.15125.05693.71704.81756.22094.81855.13482.49512.49512.15851.77271.77271.0956
H135.45624.54802.93285.08376.12874.76605.06592.51813.08032.17721.77291.77271.0947
C145.26364.24812.73324.40195.68554.40274.59622.16302.16301.52531.09471.09561.0947

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 117.604 O1 C2 C7 123.446
C2 S3 C10 106.276 C2 C7 H4 111.081
C2 C7 H5 108.074 C2 C7 H6 111.074
S3 C2 C7 118.950 S3 C10 H8 109.694
S3 C10 H9 109.694 S3 C10 C14 108.667
H4 C7 H5 109.447 H4 C7 H6 107.705
H5 C7 H6 109.444 H8 C10 H9 108.359
H8 C10 C14 110.210 H9 C10 C14 110.210
C10 C14 H11 111.332 C10 C14 H12 109.799
C10 C14 H13 111.332 H11 C14 H12 108.059
H11 C14 H13 108.141 H12 C14 H13 108.059
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 -0.413     -0.415
2 C 0.269     0.595
3 S 0.149     -0.291
4 H 0.200     0.174
5 H 0.218     0.184
6 H 0.200     0.174
7 C -0.591     -0.610
8 H 0.202     0.069
9 H 0.202     0.069
10 C -0.487     0.024
11 H 0.195     0.111
12 H 0.183     0.072
13 H 0.195     0.111
14 C -0.524     -0.267


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.559 3.505 0.000 4.340
CHELPG        
AIM        
ESP -2.574 3.483 0.000 4.331


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.896 3.760 0.001
y 3.760 -44.428 0.000
z 0.001 0.000 -43.715
Traceless
 xyz
x -1.824 3.760 0.001
y 3.760 0.378 0.000
z 0.001 0.000 1.447
Polar
3z2-r22.893
x2-y2-1.468
xy3.760
xz0.001
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> 252.036
(<r2>)1/2 15.876