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: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-630.607141
Energy at 298.15K-630.615696
Nuclear repulsion energy293.172558
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 B1B95/cc-pVDZ
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 3188 3065 4.70      
2 A 3158 3035 4.11      
3 A 3156 3034 18.19      
4 A 3147 3025 14.39      
5 A 3127 3006 2.13      
6 A 3071 2952 18.29      
7 A 3068 2949 0.01      
8 A 3060 2941 23.40      
9 A 1822 1752 323.46      
10 A 1471 1413 2.94      
11 A 1463 1406 17.14      
12 A 1459 1402 4.75      
13 A 1452 1395 2.02      
14 A 1439 1384 16.48      
15 A 1387 1333 3.09      
16 A 1358 1306 25.89      
17 A 1265 1216 21.94      
18 A 1245 1197 0.14      
19 A 1149 1105 161.83      
20 A 1083 1041 2.61      
21 A 1025 985 0.11      
22 A 1007 968 2.79      
23 A 998 959 3.84      
24 A 962 925 44.77      
25 A 778 748 4.99      
26 A 702 675 0.20      
27 A 646 621 67.46      
28 A 524 503 1.34      
29 A 444 427 3.06      
30 A 380 365 1.39      
31 A 308 297 0.93      
32 A 268 258 0.07      
33 A 251 242 0.03      
34 A 165 159 0.65      
35 A 86 83 0.36      
36 A 31 29 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25070.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 24097.9 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 B1B95/cc-pVDZ
ABC
0.21408 0.05470 0.04467

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.359 -0.809 0.000
C2 1.408 -0.071 0.000
S3 -0.230 -0.813 -0.000
H4 1.024 1.856 -0.886
H5 2.576 1.697 -0.000
H6 1.025 1.856 0.886
C7 1.514 1.430 0.000
H8 -1.226 1.207 0.890
H9 -1.227 1.206 -0.891
C10 -1.403 0.588 -0.000
H11 -3.011 -0.574 -0.888
H12 -3.542 0.872 0.000
H13 -3.010 -0.573 0.889
C14 -2.820 0.044 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.20432.58863.10982.51633.10952.39354.20884.20924.01275.44786.13565.44755.2490
C21.20431.79782.15512.11972.15511.50473.06013.06062.88654.53485.03854.53454.2295
S32.58861.79783.07943.76543.07952.84152.42252.42251.82742.92933.71642.92942.7287
H43.10982.15513.07941.79411.77241.09842.93952.34312.87804.71024.75415.03294.3418
H52.51632.11973.76541.79411.79411.09533.93633.93714.13096.09626.17356.09575.6444
H63.10952.15513.07951.77241.79411.09842.34272.94132.87855.03354.75444.70954.3420
C72.39351.50472.84151.09841.09531.09842.89012.89113.03605.02795.08665.02744.5509
H84.20883.06012.42252.93953.93632.34272.89011.78111.09873.08502.50282.52022.1647
H94.20923.06062.42252.34313.93712.94132.89111.78111.09872.52022.50283.08502.1647
C104.01272.88651.82742.87804.13092.87853.03601.09871.09872.17342.15792.17341.5185
H115.44784.53482.92934.71026.09625.03355.02793.08502.52022.17341.77831.77761.0985
H126.13565.03853.71644.75416.17354.75445.08662.50282.50282.15791.77831.77831.0988
H135.44754.53452.92945.03296.09574.70955.02742.52023.08502.17341.77761.77831.0985
C145.24904.22952.72874.34185.64444.34204.55092.16472.16471.51851.09851.09881.0985

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 117.780 O1 C2 C7 123.767
C2 S3 C10 105.541 C2 C7 H4 110.804
C2 C7 H5 108.195 C2 C7 H6 110.799
S3 C2 C7 118.454 S3 C10 H8 109.221
S3 C10 H9 109.221 S3 C10 C14 108.931
H4 C7 H5 109.738 H4 C7 H6 107.567
H5 C7 H6 109.736 H8 C10 H9 108.294
H8 C10 C14 110.575 H9 C10 C14 110.575
C10 C14 H11 111.284 C10 C14 H12 110.032
C10 C14 H13 111.284 H11 C14 H12 108.052
H11 C14 H13 108.012 H12 C14 H13 108.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.201      
2 C -0.012      
3 S 0.007      
4 H 0.064      
5 H 0.059      
6 H 0.064      
7 C -0.018      
8 H 0.071      
9 H 0.071      
10 C -0.219      
11 H 0.053      
12 H 0.042      
13 H 0.053      
14 C -0.034      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.480 3.221 -0.000 4.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.134 3.538 0.000
y 3.538 -44.360 0.000
z 0.000 0.000 -43.758
Traceless
 xyz
x -2.076 3.538 0.000
y 3.538 0.587 0.000
z 0.000 0.000 1.489
Polar
3z2-r22.977
x2-y2-1.775
xy3.538
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.117 0.010 0.000
y 0.010 9.077 -0.000
z 0.000 -0.000 6.410


<r2> (average value of r2) Å2
<r2> 249.953
(<r2>)1/2 15.810