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All results from a given calculation for CH3CH2SH (ethanethiol)

using model chemistry: MP2/6-311+G(3df,2p)

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 MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-477.327321
Energy at 298.15K 
HF Energy-476.798730
Nuclear repulsion energy108.035623
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 MP2/6-311+G(3df,2p)
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' 3168 2989 14.83      
2 A' 3098 2922 17.15      
3 A' 3077 2902 15.69      
4 A' 2762 2605 0.89      
5 A' 1523 1437 2.94      
6 A' 1508 1423 3.25      
7 A' 1421 1341 3.40      
8 A' 1308 1234 26.63      
9 A' 1125 1061 1.39      
10 A' 1014 957 2.69      
11 A' 873 824 1.09      
12 A' 709 669 0.70      
13 A' 308 290 1.78      
14 A" 3175 2995 15.48      
15 A" 3152 2973 0.00      
16 A" 1514 1429 9.45      
17 A" 1279 1206 0.40      
18 A" 1060 1000 0.54      
19 A" 796 751 2.93      
20 A" 264 250 1.50      
21 A" 184 174 13.69      

Unscaled Zero Point Vibrational Energy (zpe) 16657.7 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 15714.9 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 MP2/6-311+G(3df,2p)
ABC
0.95561 0.18519 0.16467

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.512 0.665 0.000
C2 0.000 0.830 0.000
S3 -0.755 -0.823 0.000
H4 1.996 1.640 0.000
H5 1.843 0.119 0.882
H6 1.843 0.119 -0.882
H7 -0.325 1.373 0.885
H8 -0.325 1.373 -0.885
H9 -2.030 -0.427 0.000

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.52062.71111.08891.08901.08902.15802.15803.7059
C21.52061.81662.15452.16292.16291.08821.08822.3872
S32.71111.81663.69242.90032.90032.40662.40661.3351
H41.08892.15453.69241.76501.76502.49822.49824.5256
H51.08902.16292.90031.76501.76482.50403.06484.0089
H61.08902.16292.90031.76501.76483.06482.50404.0089
H72.15801.08822.40662.49822.50403.06481.76982.6328
H82.15801.08822.40662.49823.06482.50401.76982.6328
H93.70592.38721.33514.52564.00894.00892.63282.6328

picture of ethanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 108.332 C1 C2 H7 110.531
C1 C2 H8 110.531 C2 C1 H4 110.210
C2 C1 H5 110.875 C2 C1 H6 110.875
C2 S3 H9 97.297 S3 C2 H7 109.308
S3 C2 H8 109.308 H4 C1 H5 108.271
H4 C1 H6 108.271 H5 C1 H6 108.248
H7 C2 H8 108.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-477.328145
Energy at 298.15K 
HF Energy-476.799361
Nuclear repulsion energy107.755187
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 MP2/6-311+G(3df,2p)
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 3177 2997 15.59 15.72 0.75 0.86
2 A 3157 2979 16.89 63.15 0.69 0.81
3 A 3146 2968 4.46 92.08 0.72 0.83
4 A 3095 2920 11.50 112.24 0.08 0.15
5 A 3071 2897 19.74 160.02 0.03 0.05
6 A 2757 2601 0.70 105.63 0.20 0.33
7 A 1518 1432 2.89 3.10 0.75 0.86
8 A 1512 1426 10.12 4.64 0.74 0.85
9 A 1494 1410 1.69 7.29 0.68 0.81
10 A 1420 1340 4.21 0.26 0.40 0.57
11 A 1317 1242 16.95 1.48 0.33 0.49
12 A 1293 1219 2.49 1.78 0.74 0.85
13 A 1133 1069 6.62 3.16 0.31 0.47
14 A 1083 1022 0.41 4.55 0.18 0.30
15 A 1007 950 5.47 3.54 0.75 0.86
16 A 885 835 5.63 1.44 0.30 0.46
17 A 748 706 1.62 3.26 0.18 0.30
18 A 691 652 2.09 11.03 0.19 0.32
19 A 335 316 1.14 1.12 0.20 0.34
20 A 268 253 1.19 0.11 0.35 0.52
21 A 217 205 13.16 0.49 0.66 0.80

Unscaled Zero Point Vibrational Energy (zpe) 16661.9 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 15718.8 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 MP2/6-311+G(3df,2p)
ABC
0.96702 0.17848 0.16340

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.626 -0.350 -0.053
C2 0.489 0.647 0.089
S3 -1.154 -0.101 -0.079
H4 2.589 0.155 0.023
H5 1.578 -1.105 0.732
H6 1.574 -0.860 -1.013
H7 0.545 1.179 1.037
H8 0.529 1.394 -0.703
H9 -1.050 -0.925 0.967

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.51892.79081.09061.08931.08802.16712.16062.9204
C21.51891.81272.15812.16012.15901.08871.09002.3681
S32.79081.81273.75313.02112.98112.40212.33581.3355
H41.09062.15813.75311.76391.77042.50132.51133.9115
H51.08932.16013.02111.76391.76142.52513.06622.6444
H61.08802.15902.98111.77041.76143.06902.50323.2872
H72.16711.08872.40212.50132.52513.06901.75402.6411
H82.16061.09002.33582.51133.06622.50321.75403.2648
H92.92042.36811.33553.91152.64443.28722.64113.2648

picture of ethanethiol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 113.506 C1 C2 H7 111.347
C1 C2 H8 110.753 C2 C1 H4 110.515
C2 C1 H5 110.753 C2 C1 H6 110.740
C2 S3 H9 96.388 S3 C2 H7 109.218
S3 C2 H8 104.390 H4 C1 H5 108.033
H4 C1 H6 108.708 H5 C1 H6 107.999
H7 C2 H8 107.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability