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: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-625.139863
Energy at 298.15K-625.148276
Nuclear repulsion energy289.586860
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 LSDA/3-21G
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 3104 3053 1.77      
2 A 3091 3041 9.98      
3 A 3074 3024 6.73      
4 A 3065 3015 0.05      
5 A 3060 3010 1.02      
6 A 3011 2961 13.13      
7 A 2994 2945 9.18      
8 A 2991 2942 0.11      
9 A 1774 1744 221.05      
10 A 1502 1478 9.84      
11 A 1493 1469 19.39      
12 A 1475 1451 26.09      
13 A 1461 1437 0.38      
14 A 1439 1415 37.26      
15 A 1406 1383 22.16      
16 A 1371 1349 47.17      
17 A 1267 1246 18.23      
18 A 1264 1243 0.29      
19 A 1107 1089 148.07      
20 A 1072 1054 7.31      
21 A 1029 1012 2.50      
22 A 1024 1007 6.75      
23 A 1005 989 13.78      
24 A 937 922 40.48      
25 A 788 775 12.25      
26 A 658 648 0.02      
27 A 583 573 74.21      
28 A 519 510 0.27      
29 A 415 408 5.88      
30 A 353 348 0.17      
31 A 307 302 2.80      
32 A 259 255 0.04      
33 A 205 202 1.08      
34 A 163 160 0.75      
35 A 91 90 0.14      
36 A 60 59 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24708.0 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 24302.8 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 LSDA/3-21G
ABC
0.21014 0.05351 0.04372

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -2.456 -0.758 -0.000
C2 -1.467 -0.046 -0.000
S3 0.229 -0.849 0.000
H4 -0.890 1.820 0.891
H5 -2.458 1.831 0.000
H6 -0.890 1.820 -0.890
C7 -1.427 1.444 0.000
H8 1.244 1.209 -0.901
H9 1.244 1.209 0.901
C10 1.428 0.599 0.000
H11 2.994 -0.602 0.894
H12 3.576 0.837 -0.000
H13 2.994 -0.602 -0.894
C14 2.829 0.023 -0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.21882.68693.14462.58873.14472.43024.28594.28624.11475.52546.23915.52525.3424
C21.21881.87622.14642.12292.14641.49053.11983.12022.96614.58355.11924.58334.2961
S32.68691.87623.02743.79503.02772.82822.46482.46481.88002.91633.74712.91632.7420
H43.14462.14643.02741.80321.78061.10562.85202.21992.76734.57764.65874.91304.2251
H52.58872.12293.79501.80321.80321.10143.86033.86064.07706.03736.11536.03715.5876
H63.14472.14643.02771.78061.80321.10562.21962.85222.76734.91314.65864.57754.2251
C72.43021.49052.82821.10561.10141.10562.82832.82862.97774.95315.03954.95294.4868
H84.28593.11982.46482.85203.86032.21962.82831.80131.10333.09282.52732.51882.1748
H94.28623.12022.46482.21993.86062.85222.82861.80131.10332.51882.52733.09282.1748
C104.11472.96611.88002.76734.07702.76732.97771.10331.10332.16672.16052.16671.5144
H115.52544.58352.91634.57766.03734.91314.95313.09282.51882.16671.79131.78821.1036
H126.23915.11923.74714.65876.11534.65865.03952.52732.52732.16051.79131.79131.1045
H135.52524.58332.91634.91306.03714.57754.95292.51883.09282.16671.78821.79131.1036
C145.34244.29612.74204.22515.58764.22514.48682.17482.17481.51441.10361.10451.1036

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 118.954 O1 C2 C7 127.248
C2 S3 C10 104.309 C2 C7 H4 110.667
C2 C7 H5 109.054 C2 C7 H6 110.664
S3 C2 C7 113.799 S3 C10 H8 108.610
S3 C10 H9 108.610 S3 C10 C14 107.272
H4 C7 H5 109.579 H4 C7 H6 107.276
H5 C7 H6 109.578 H8 C10 H9 109.445
H8 C10 C14 111.401 H9 C10 C14 111.402
C10 C14 H11 110.737 C10 C14 H12 110.189
C10 C14 H13 110.737 H11 C14 H12 108.437
H11 C14 H13 108.226 H12 C14 H13 108.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.361      
2 C 0.109      
3 S 0.313      
4 H 0.254      
5 H 0.265      
6 H 0.254      
7 C -0.712      
8 H 0.251      
9 H 0.251      
10 C -0.700      
11 H 0.242      
12 H 0.231      
13 H 0.242      
14 C -0.637      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.175 3.651 0.000 4.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.742 -3.240 -0.001
y -3.240 -44.997 0.000
z -0.001 0.000 -44.461
Traceless
 xyz
x -1.013 -3.240 -0.001
y -3.240 0.104 0.000
z -0.001 0.000 0.908
Polar
3z2-r21.817
x2-y2-0.745
xy-3.240
xz-0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.784 -0.037 0.000
y -0.037 8.428 -0.000
z 0.000 -0.000 5.734


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000