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All results from a given calculation for CH3CH2SH (ethanethiol)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-477.231975
Energy at 298.15K-477.238270
HF Energy-476.784560
Nuclear repulsion energy107.647611
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 MP2/6-311G**
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' 3172 3014 19.83      
2 A' 3108 2953 23.25      
3 A' 3082 2928 17.34      
4 A' 2801 2661 6.11      
5 A' 1523 1447 1.48      
6 A' 1508 1433 3.48      
7 A' 1434 1363 3.98      
8 A' 1349 1281 43.01      
9 A' 1138 1081 2.63      
10 A' 1026 975 1.83      
11 A' 894 850 2.45      
12 A' 715 680 0.56      
13 A' 314 298 1.87      
14 A" 3182 3023 26.65      
15 A" 3160 3003 0.06      
16 A" 1509 1434 8.47      
17 A" 1296 1231 1.57      
18 A" 1084 1030 2.25      
19 A" 811 770 4.34      
20 A" 275 261 0.81      
21 A" 154 146 21.22      

Unscaled Zero Point Vibrational Energy (zpe) 16766.7 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 15931.7 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 MP2/6-311G**
ABC
0.95556 0.18316 0.16313

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.517 0.674 0.000
C2 0.000 0.827 0.000
S3 -0.759 -0.829 0.000
H4 1.995 1.657 0.000
H5 1.855 0.130 0.886
H6 1.855 0.130 -0.886
H7 -0.320 1.376 0.888
H8 -0.320 1.376 -0.888
H9 -2.028 -0.415 0.000

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.52512.72761.09341.09321.09322.15812.15813.7092
C21.52511.82182.16112.17082.17081.09201.09202.3786
S32.72761.82183.71032.92162.92162.41772.41771.3354
H41.09342.16113.71031.77151.77152.49552.49554.5260
H51.09322.17082.92161.77151.77172.50693.07104.0202
H61.09322.17082.92161.77151.77173.07102.50694.0202
H72.15811.09202.41772.49552.50693.07101.77612.6300
H82.15811.09202.41772.49553.07102.50691.77612.6300
H93.70922.37861.33544.52604.02024.02022.63002.6300

picture of ethanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 108.844 C1 C2 H7 109.995
C1 C2 H8 109.995 C2 C1 H4 110.150
C2 C1 H5 110.939 C2 C1 H6 110.939
C2 S3 H9 96.555 S3 C2 H7 109.584
S3 C2 H8 109.584 H4 C1 H5 108.229
H4 C1 H6 108.229 H5 C1 H6 108.259
H7 C2 H8 108.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-477.233035
Energy at 298.15K-477.239474
HF Energy-476.785043
Nuclear repulsion energy107.506724
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 MP2/6-311G**
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 3183 3024 24.59      
2 A 3165 3007 16.47      
3 A 3155 2998 10.82      
4 A 3108 2953 17.00      
5 A 3075 2922 20.81      
6 A 2796 2657 5.75      
7 A 1515 1440 3.30      
8 A 1510 1435 8.19      
9 A 1493 1418 0.94      
10 A 1434 1362 3.39      
11 A 1350 1283 23.48      
12 A 1306 1241 2.72      
13 A 1154 1096 12.35      
14 A 1096 1042 0.46      
15 A 1018 967 5.58      
16 A 902 857 7.54      
17 A 766 728 2.54      
18 A 702 667 2.24      
19 A 342 325 2.11      
20 A 291 277 0.97      
21 A 226 215 17.05      

Unscaled Zero Point Vibrational Energy (zpe) 16792.6 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 15956.3 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 MP2/6-311G**
ABC
0.95903 0.17810 0.16269

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.626 -0.352 -0.054
C2 0.489 0.652 0.089
S3 -1.158 -0.100 -0.076
H4 2.596 0.154 0.006
H5 1.585 -1.103 0.739
H6 1.561 -0.872 -1.013
H7 0.555 1.183 1.042
H8 0.538 1.400 -0.706
H9 -1.008 -0.963 0.933

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.52352.79551.09481.09381.09232.16882.16262.8788
C21.52351.81772.16612.16852.16461.09231.09322.3576
S32.79551.81773.76273.03202.97732.41412.35001.3358
H41.09482.16613.76271.77161.77812.50872.50853.8846
H51.09382.16853.03201.77161.76732.52513.07402.6039
H61.09232.16462.97731.77811.76733.07482.51053.2235
H72.16881.09232.41412.50872.52513.07481.76142.6567
H82.16261.09322.35002.50853.07402.51051.76143.2647
H92.87882.35761.33583.88462.60393.22352.65673.2647

picture of ethanethiol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 113.291 C1 C2 H7 110.935
C1 C2 H8 110.393 C2 C1 H4 110.572
C2 C1 H5 110.828 C2 C1 H6 110.605
C2 S3 H9 95.557 S3 C2 H7 109.581
S3 C2 H8 104.920 H4 C1 H5 108.088
H4 C1 H6 108.774 H5 C1 H6 107.882
H7 C2 H8 107.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability