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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-630.385308
Energy at 298.15K-630.376265
HF Energy-630.685560
Nuclear repulsion energy291.866474
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/6-31G(2df,p)
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 3151 3041 7.37      
2 A 3128 3019 23.96      
3 A 3117 3008 4.59      
4 A 3114 3005 18.59      
5 A 3104 2995 0.20      
6 A 3058 2951 17.35      
7 A 3047 2941 0.82      
8 A 3043 2937 21.19      
9 A 1795 1733 290.70      
10 A 1502 1450 1.98      
11 A 1493 1441 7.27      
12 A 1482 1430 1.10      
13 A 1474 1423 10.83      
14 A 1460 1408 16.32      
15 A 1413 1364 1.42      
16 A 1378 1330 15.39      
17 A 1295 1250 27.39      
18 A 1271 1227 0.01      
19 A 1140 1100 153.18      
20 A 1071 1034 4.39      
21 A 1042 1006 0.04      
22 A 1023 988 2.00      
23 A 990 955 3.28      
24 A 941 908 53.99      
25 A 791 763 3.85      
26 A 687 663 0.07      
27 A 630 608 65.07      
28 A 517 499 2.16      
29 A 440 425 2.99      
30 A 368 355 1.43      
31 A 299 288 1.22      
32 A 249 240 0.12      
33 A 156 150 0.82      
34 A 146 141 0.10      
35 A 91 88 0.22      
36 A 58 56 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 24981.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 24107.6 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 B3LYP/6-31G(2df,p)
ABC
0.21342 0.05384 0.04406

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.360 -0.828 -0.000
C2 1.419 -0.077 -0.000
S3 -0.233 -0.805 0.000
H4 1.070 1.865 -0.883
H5 2.612 1.682 -0.001
H6 1.071 1.865 0.883
C7 1.550 1.432 -0.000
H8 -1.251 1.214 0.886
H9 -1.252 1.213 -0.887
C10 -1.420 0.598 -0.000
H11 -3.030 -0.575 -0.885
H12 -3.566 0.863 0.000
H13 -3.029 -0.574 0.886
C14 -2.844 0.040 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20332.59273.11352.52283.11322.40034.24194.24194.04005.46726.16185.46725.2759
C21.20331.80542.16182.12572.16171.51463.09593.09602.91884.56325.07274.56314.2652
S32.59271.80543.09943.77893.09972.86042.42842.42841.83762.94233.72672.94232.7446
H43.11352.16183.09941.78571.76561.09412.99052.41162.93064.77104.82425.08784.4085
H52.52282.12573.77891.78571.78571.09103.99163.99174.17586.14056.23176.14045.6983
H63.11322.16173.09971.76561.78571.09412.41212.99222.93155.08884.82524.77134.4093
C72.40031.51462.86041.09411.09101.09412.94652.94693.08555.07795.14735.07764.6097
H84.24193.09592.42842.99053.99162.41212.94651.77351.09273.08222.50282.52172.1682
H94.24193.09602.42842.41163.99172.99222.94691.77351.09272.52182.50283.08222.1682
C104.04002.91881.83762.93064.17582.93153.08551.09271.09272.17892.16152.17891.5293
H115.46724.56322.94234.77106.14055.08885.07793.08222.52182.17891.77171.77081.0937
H126.16185.07273.72674.82426.23174.82525.14732.50282.50282.16151.77171.77171.0944
H135.46724.56312.94235.08786.14044.77135.07762.52173.08222.17891.77081.77171.0936
C145.27594.26522.74464.40855.69834.40934.60972.16822.16821.52931.09371.09441.0936

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 117.809 O1 C2 C7 123.473
C2 S3 C10 106.612 C2 C7 H4 111.076
C2 C7 H5 107.822 C2 C7 H6 111.070
S3 C2 C7 118.718 S3 C10 H8 109.407
S3 C10 H9 109.406 S3 C10 C14 109.061
H4 C7 H5 109.619 H4 C7 H6 107.635
H5 C7 H6 109.615 H8 C10 H9 108.442
H8 C10 C14 110.254 H9 C10 C14 110.254
C10 C14 H11 111.225 C10 C14 H12 109.840
C10 C14 H13 111.224 H11 C14 H12 108.146
H11 C14 H13 108.150 H12 C14 H13 108.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.291      
2 C 0.353      
3 S -0.122      
4 H 0.148      
5 H 0.151      
6 H 0.148      
7 C -0.473      
8 H 0.131      
9 H 0.131      
10 C -0.193      
11 H 0.141      
12 H 0.124      
13 H 0.141      
14 C -0.390      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.485 3.349 -0.000 4.170
CHELPG        
AIM        
ESP        


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 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> 252.987
(<r2>)1/2 15.906