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All results from a given calculation for CH3CH2SH (ethanethiol)

using model chemistry: MP4=FULL/6-31G*

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 MP4=FULL/6-31G*
 hartrees
Energy at 0K-477.193416
Energy at 298.15K 
HF Energy-476.734809
Nuclear repulsion energy107.168452
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 MP4=FULL/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3148 3027        
2 A' 3085 2967        
3 A' 3066 2948        
4 A' 2717 2613        
5 A' 1550 1491        
6 A' 1539 1480        
7 A' 1462 1406        
8 A' 1357 1305        
9 A' 1144 1100        
10 A' 1026 987        
11 A' 888 854        
12 A' 701 674        
13 A' 312 300        
14 A" 3157 3036        
15 A" 3134 3013        
16 A" 1540 1481        
17 A" 1306 1256        
18 A" 1088 1046        
19 A" 811 780        
20 A" 267 257        
21 A" 177 170        

Unscaled Zero Point Vibrational Energy (zpe) 16737.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 16094.6 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 MP4=FULL/6-31G*
ABC
0.95187 0.18125 0.16156

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.520 0.687 0.000
C2 0.000 0.830 0.000
S3 -0.758 -0.838 0.000
H4 1.991 1.678 0.000
H5 1.863 0.144 0.889
H6 1.863 0.144 -0.889
H7 -0.330 1.380 0.889
H8 -0.330 1.380 -0.889
H9 -2.042 -0.425 0.000

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.52632.74131.09701.09671.09672.16592.16593.7310
C21.52631.83182.16442.17532.17531.09621.09622.3966
S32.74131.83183.72672.93732.93732.42702.42701.3478
H41.09702.16443.72671.77701.77702.50362.50364.5484
H51.09672.17532.93731.77701.77742.51753.08184.0451
H61.09672.17532.93731.77701.77743.08182.51754.0451
H72.16591.09622.42702.50362.51753.08181.77792.6416
H82.16591.09622.42702.50363.08182.51751.77792.6416
H93.73102.39661.34784.54844.04514.04512.64162.6416

picture of ethanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 109.097 C1 C2 H7 110.284
C1 C2 H8 110.284 C2 C1 H4 110.108
C2 C1 H5 110.995 C2 C1 H6 110.995
C2 S3 H9 96.650 S3 C2 H7 109.390
S3 C2 H8 109.390 H4 C1 H5 108.196
H4 C1 H6 108.196 H5 C1 H6 108.252
H7 C2 H8 108.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-477.194305
Energy at 298.15K-477.200686
HF Energy-476.735293
Nuclear repulsion energy106.928815
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 MP4=FULL/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3159 3038        
2 A 3139 3019        
3 A 3130 3010        
4 A 3085 2967        
5 A 3059 2942        
6 A 2708 2604        
7 A 1545 1486        
8 A 1538 1479        
9 A 1526 1467        
10 A 1459 1403        
11 A 1362 1310        
12 A 1317 1267        
13 A 1161 1116        
14 A 1100 1058        
15 A 1019 980        
16 A 898 864        
17 A 759 730        
18 A 688 662        
19 A 338 325        
20 A 273 263        
21 A 227 218        

Unscaled Zero Point Vibrational Energy (zpe) 16744.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 16101.9 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 MP4=FULL/6-31G*
ABC
0.95827 0.17539 0.16070

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.638 -0.352 -0.054
C2 0.495 0.647 0.091
S3 -1.165 -0.100 -0.079
H4 2.606 0.163 0.008
H5 1.605 -1.107 0.741
H6 1.581 -0.872 -1.018
H7 0.558 1.180 1.048
H8 0.543 1.403 -0.703
H9 -1.050 -0.945 0.966

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.52542.81481.09841.09761.09592.17472.16832.9360
C21.52541.82852.16732.17562.17161.09651.09712.3849
S32.81481.82853.78143.05953.00302.42362.35891.3487
H41.09842.16733.78141.77611.78182.51202.51003.9387
H51.09762.17563.05951.77611.77472.53423.08482.6695
H61.09592.17163.00301.78181.77473.08572.52053.2959
H72.17471.09652.42362.51202.53423.08571.76442.6655
H82.16831.09712.35892.51003.08482.52051.76443.2915
H92.93602.38491.34873.93872.66953.29592.66553.2915

picture of ethanethiol state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 113.823 C1 C2 H7 111.028
C1 C2 H8 110.482 C2 C1 H4 110.332
C2 C1 H5 111.032 C2 C1 H6 110.815
C2 S3 H9 96.115 S3 C2 H7 109.341
S3 C2 H8 104.692 H4 C1 H5 107.960
H4 C1 H6 108.590 H5 C1 H6 108.013
H7 C2 H8 107.091
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability