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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-438.698344
Energy at 298.15K-438.702201
HF Energy-438.698344
Nuclear repulsion energy55.870267
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 B3LYP/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' 3166 3040 8.54 65.69 0.75 0.86
2 A' 3076 2954 25.99 111.50 0.00 0.01
3 A' 2677 2571 25.07 136.93 0.39 0.56
4 A' 1517 1457 8.75 17.92 0.75 0.86
5 A' 1395 1340 9.98 4.41 0.48 0.65
6 A' 1116 1072 21.67 17.99 0.72 0.84
7 A' 806 774 0.95 8.91 0.56 0.72
8 A' 702 675 2.64 13.44 0.29 0.45
9 A" 3162 3036 11.49 72.28 0.75 0.86
10 A" 1507 1447 5.60 19.87 0.75 0.86
11 A" 991 952 6.76 8.14 0.75 0.86
12 A" 248 238 18.22 4.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10181.0 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 9776.8 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 B3LYP/6-31G*
ABC
3.41386 0.42297 0.40563

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.164 0.000
S2 -0.048 -0.672 0.000
H3 1.293 -0.834 0.000
H4 -1.097 1.469 0.000
H5 0.432 1.564 0.896
H6 0.432 1.564 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.83582.40661.09251.09221.0922
S21.83581.35062.38422.45562.4556
H32.40661.35063.31942.70042.7004
H41.09252.38423.31941.77521.7752
H51.09222.45562.70041.77521.7916
H61.09222.45562.70041.77521.7916

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.915 S2 C1 H4 106.222
S2 C1 H5 111.449 S2 C1 H6 111.449
H4 C1 H5 108.687 H4 C1 H6 108.687
H5 C1 H6 110.196
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.577      
2 S -0.080      
3 H 0.095      
4 H 0.190      
5 H 0.186      
6 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.897 1.486 0.000 1.736
CHELPG 0.877 1.471 0.000 1.713
AIM 0.337 0.376 0.000 0.505
ESP 0.924 1.541 0.000 1.797


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.078 -1.413 0.000
y -1.413 -20.164 0.000
z 0.000 0.000 -22.476
Traceless
 xyz
x 2.242 -1.413 0.000
y -1.413 0.613 0.000
z 0.000 0.000 -2.855
Polar
3z2-r2-5.709
x2-y21.086
xy-1.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.839 -0.238 0.000
y -0.238 4.789 0.000
z 0.000 0.000 3.080


<r2> (average value of r2) Å2
<r2> 40.848
(<r2>)1/2 6.391