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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-52.256064
Energy at 298.15K-52.264798
Nuclear repulsion energy124.904765
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 HF/CEP-121G*
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 3317 2996 18.23      
2 A 3297 2979 59.39      
3 A 3283 2966 2.23      
4 A 3267 2952 13.07      
5 A 3265 2949 53.90      
6 A 3233 2921 25.98      
7 A 3209 2899 3.94      
8 A 3192 2884 41.07      
9 A 1931 1745 445.01      
10 A 1634 1476 1.31      
11 A 1625 1468 2.70      
12 A 1624 1467 8.33      
13 A 1610 1455 13.02      
14 A 1600 1446 17.43      
15 A 1550 1400 2.26      
16 A 1530 1383 14.54      
17 A 1435 1296 37.89      
18 A 1382 1249 0.08      
19 A 1257 1135 162.60      
20 A 1162 1050 3.95      
21 A 1142 1032 0.37      
22 A 1123 1015 0.97      
23 A 1052 951 5.22      
24 A 1034 934 46.91      
25 A 851 769 2.09      
26 A 761 688 2.16      
27 A 695 628 59.15      
28 A 555 502 7.65      
29 A 491 444 6.02      
30 A 398 359 3.03      
31 A 323 292 0.44      
32 A 263 238 0.14      
33 A 173 156 1.60      
34 A 164 148 0.00      
35 A 75 68 0.46      
36 A 56 50 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26779.8 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 24192.8 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 HF/CEP-121G*
ABC
0.21324 0.05409 0.04420

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.333 -0.985 0.000
C2 1.402 -0.240 0.000
S3 -0.245 -0.967 -0.000
H4 1.100 1.710 -0.879
H5 2.624 1.493 -0.001
H6 1.101 1.709 0.880
C7 1.564 1.274 0.000
H8 -1.260 1.053 0.880
H9 -1.260 1.053 -0.881
C10 -1.419 0.442 -0.000
H11 -3.034 -0.725 -0.880
H12 -3.560 0.705 0.000
H13 -3.033 -0.725 0.881
C14 -2.849 -0.117 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.19242.57743.09062.49523.08992.38584.22324.22374.01385.44446.13005.44405.2536
C21.19241.80002.15942.12042.15921.52203.08723.08792.90194.54815.05084.54774.2523
S32.57741.80003.12143.77893.12212.87942.42642.42641.83432.93453.71292.93452.7393
H43.09062.15943.12141.77181.75851.08513.01502.44992.95314.79744.84705.10914.4383
H52.49522.12043.77891.77181.77171.08234.00624.00684.17676.14016.23346.13975.7042
H63.08992.15923.12211.75851.77171.08512.45053.01822.95485.11094.84854.79774.4396
C72.38581.52202.87941.08511.08231.08512.96572.96683.09635.09005.15515.08944.6264
H84.22323.08722.42643.01504.00622.45052.96571.76091.08333.06702.48692.51122.1604
H94.22373.08792.42642.44994.00683.01822.96681.76091.08332.51132.48693.06702.1604
C104.01382.90191.83432.95314.17672.95483.09631.08331.08332.17822.15712.17821.5353
H115.44444.54812.93454.79746.14015.11095.09003.06702.51132.17821.75961.76051.0857
H126.13005.05083.71294.84706.23344.84855.15512.48692.48692.15711.75961.75961.0868
H135.44404.54772.93455.10916.13974.79775.08942.51123.06702.17821.76051.75961.0857
C145.25364.25232.73934.43835.70424.43964.62642.16042.16041.53531.08571.08681.0857

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 117.490 O1 C2 C7 122.569
C2 S3 C10 105.967 C2 C7 H4 110.728
C2 C7 H5 107.822 C2 C7 H6 110.711
S3 C2 C7 119.941 S3 C10 H8 109.848
S3 C10 H9 109.849 S3 C10 C14 108.442
H4 C7 H5 109.667 H4 C7 H6 108.244
H5 C7 H6 109.663 H8 C10 H9 108.731
H8 C10 C14 109.982 H9 C10 C14 109.982
C10 C14 H11 111.257 C10 C14 H12 109.514
C10 C14 H13 111.257 H11 C14 H12 108.183
H11 C14 H13 108.344 H12 C14 H13 108.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.379      
2 C 0.372      
3 S -0.047      
4 H 0.183      
5 H 0.220      
6 H 0.183      
7 C -0.569      
8 H 0.176      
9 H 0.176      
10 C -0.335      
11 H 0.179      
12 H 0.178      
13 H 0.179      
14 C -0.517      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.799 3.871 0.000 4.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.091 4.850 0.001
y 4.850 -46.161 0.000
z 0.001 0.000 -43.722
Traceless
 xyz
x -2.150 4.850 0.001
y 4.850 -0.755 0.000
z 0.001 0.000 2.905
Polar
3z2-r25.809
x2-y2-0.930
xy4.850
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.241 -0.359 0.000
y -0.359 9.000 0.000
z 0.000 0.000 6.975


<r2> (average value of r2) Å2
<r2> 198.710
(<r2>)1/2 14.096