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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-630.176867
Energy at 298.15K-630.185085
Nuclear repulsion energy290.233876
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 PBEPBE/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 3107 3062 5.97      
2 A 3082 3038 20.78      
3 A 3069 3025 17.40      
4 A 3065 3021 5.13      
5 A 3049 3005 3.68      
6 A 2999 2956 20.04      
7 A 2995 2952 21.73      
8 A 2994 2951 1.15      
9 A 1749 1724 262.82      
10 A 1485 1464 3.58      
11 A 1476 1455 9.96      
12 A 1462 1441 0.87      
13 A 1453 1432 14.44      
14 A 1440 1419 20.49      
15 A 1391 1371 4.52      
16 A 1351 1332 21.12      
17 A 1272 1253 26.69      
18 A 1248 1230 0.07      
19 A 1117 1101 152.22      
20 A 1057 1042 8.27      
21 A 1028 1013 0.07      
22 A 995 981 2.66      
23 A 980 966 4.78      
24 A 923 910 47.28      
25 A 779 768 6.45      
26 A 674 664 0.14      
27 A 619 610 61.54      
28 A 495 488 1.18      
29 A 424 418 2.96      
30 A 362 357 1.27      
31 A 293 288 1.24      
32 A 257 253 0.07      
33 A 152 149 0.87      
34 A 132 131 0.23      
35 A 93 91 0.28      
36 A 54 54 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24558.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 24207.3 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 PBEPBE/6-31G*
ABC
0.21115 0.05335 0.04365

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 2.381 -0.831 0.000
C2 1.426 -0.073 -0.000
S3 -0.234 -0.809 0.000
H4 1.060 1.877 -0.890
H5 2.614 1.700 -0.001
H6 1.061 1.877 0.890
C7 1.546 1.440 -0.000
H8 -1.261 1.222 0.894
H9 -1.261 1.222 -0.894
C10 -1.429 0.598 -0.000
H11 -3.039 -0.584 -0.892
H12 -3.582 0.863 0.000
H13 -3.039 -0.584 0.893
C14 -2.852 0.035 0.000

Atom - Atom Distances (Å)
  O1 C2 S3 H4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14
O11.21962.61583.14172.54203.14142.41984.27544.27564.06935.49866.19935.49855.3049
C21.21961.81632.17422.13452.17411.51743.11373.11382.93264.58185.09484.58174.2797
S32.61581.81633.11153.79633.11182.86812.44492.44491.84552.95153.74212.95152.7508
H43.14172.17423.11151.79931.77941.10362.99962.41192.93634.78124.83415.10244.4148
H52.54202.13453.79631.79931.79931.10004.00594.00594.19086.16236.25276.16235.7146
H63.14142.17413.11181.77941.79931.10362.41243.00062.93705.10314.83484.78154.4154
C72.41981.51742.86811.10361.10001.10362.95362.95383.09145.09035.16005.09024.6168
H84.27543.11372.44492.99964.00592.41242.95361.78831.10313.10082.51302.53432.1770
H94.27563.11382.44492.41194.00593.00062.95381.78831.10312.53432.51303.10082.1770
C104.06932.93261.84552.93634.19082.93703.09141.10311.10312.18782.16952.18771.5306
H115.49864.58182.95154.78126.16235.10315.09033.10082.53432.18781.78541.78521.1025
H126.19935.09483.74214.83416.25274.83485.16002.51302.51302.16951.78541.78541.1035
H135.49854.58172.95155.10246.16234.78155.09022.53433.10082.18771.78521.78541.1025
C145.30494.27972.75084.41485.71464.41544.61682.17702.17701.53061.10251.10351.1025

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 117.651 O1 C2 C7 123.915
C2 S3 C10 106.419 C2 C7 H4 111.112
C2 C7 H5 108.215 C2 C7 H6 111.106
S3 C2 C7 118.434 S3 C10 H8 109.431
S3 C10 H9 109.431 S3 C10 C14 108.770
H4 C7 H5 109.476 H4 C7 H6 107.443
H5 C7 H6 109.473 H8 C10 H9 108.301
H8 C10 C14 110.446 H9 C10 C14 110.445
C10 C14 H11 111.332 C10 C14 H12 109.832
C10 C14 H13 111.332 H11 C14 H12 108.056
H11 C14 H13 108.110 H12 C14 H13 108.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.378      
2 C 0.240      
3 S 0.139      
4 H 0.191      
5 H 0.203      
6 H 0.191      
7 C -0.558      
8 H 0.192      
9 H 0.192      
10 C -0.459      
11 H 0.186      
12 H 0.173      
13 H 0.186      
14 C -0.495      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.464 3.385 -0.000 4.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.720 3.543 -0.001
y 3.543 -44.467 0.000
z -0.001 0.000 -43.895
Traceless
 xyz
x -1.539 3.543 -0.001
y 3.543 0.340 0.000
z -0.001 0.000 1.199
Polar
3z2-r22.397
x2-y2-1.253
xy3.543
xz-0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.338 -0.023 -0.000
y -0.023 9.046 -0.000
z -0.000 -0.000 6.572


<r2> (average value of r2) Å2
<r2> 255.069
(<r2>)1/2 15.971