return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CH2SH (ethanethiol)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-24.986918
Energy at 298.15K-24.993136
Nuclear repulsion energy44.000796
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 B1B95/CEP-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' 3160 3025 33.15      
2 A' 3100 2967 32.39      
3 A' 3080 2948 26.30      
4 A' 2672 2558 27.50      
5 A' 1497 1433 3.83      
6 A' 1480 1417 2.40      
7 A' 1407 1346 7.23      
8 A' 1290 1235 39.37      
9 A' 1114 1066 2.72      
10 A' 1002 959 3.20      
11 A' 862 825 2.46      
12 A' 692 662 0.56      
13 A' 288 275 2.52      
14 A" 3176 3040 55.23      
15 A" 3152 3017 0.40      
16 A" 1486 1422 10.56      
17 A" 1249 1196 1.29      
18 A" 1028 984 0.76      
19 A" 775 742 7.54      
20 A" 254 243 4.08      
21 A" 200 191 22.43      

Unscaled Zero Point Vibrational Energy (zpe) 16480.0 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 15774.6 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 B1B95/CEP-31G*
ABC
0.93089 0.18047 0.16043

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.529 0.675 0.000
C2 0.000 0.841 0.000
S3 -0.763 -0.836 0.000
H4 2.017 1.663 0.000
H5 1.868 0.125 0.893
H6 1.868 0.125 -0.893
H7 -0.327 1.392 0.895
H8 -0.327 1.392 -0.895
H9 -2.060 -0.423 0.000

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7 H8 H9
C11.53832.74561.10221.10171.10172.18162.18163.7540
C21.53831.84232.17852.19052.19051.10011.10012.4175
S32.74561.84233.73862.94002.94002.43952.43951.3609
H41.10222.17853.73861.78451.78452.52392.52394.5807
H51.10172.19052.94001.78451.78562.53373.10084.0656
H61.10172.19052.94001.78451.78563.10082.53374.0656
H72.18161.10012.43952.52392.53373.10081.78932.6646
H82.18161.10012.43952.52393.10082.53371.78932.6646
H93.75402.41751.36094.58074.06564.06562.66462.6646

picture of ethanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 108.278 C1 C2 H7 110.452
C1 C2 H8 110.452 C2 C1 H4 110.087
C2 C1 H5 111.061 C2 C1 H6 111.061
C2 S3 H9 96.854 S3 C2 H7 109.407
S3 C2 H8 109.407 H4 C1 H5 108.130
H4 C1 H6 108.130 H5 C1 H6 108.267
H7 C2 H8 108.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.423      
2 C -0.315      
3 S -0.198      
4 H 0.164      
5 H 0.159      
6 H 0.159      
7 H 0.168      
8 H 0.168      
9 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.087 1.774 0.000 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.463 -0.241 0.000
y -0.241 -27.031 0.000
z 0.000 0.000 -27.857
Traceless
 xyz
x 3.981 -0.241 0.000
y -0.241 -1.371 0.000
z 0.000 0.000 -2.610
Polar
3z2-r2-5.220
x2-y23.568
xy-0.241
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.225 0.931 0.000
y 0.931 6.097 0.000
z 0.000 0.000 3.864


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000