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 CH3S (thiomethoxy)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-437.330895
Energy at 298.15K-437.333631
HF Energy-437.101283
Nuclear repulsion energy48.362463
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 MP2/6-31G*
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 3216 3033 0.98      
2 A 3198 3015 9.91      
3 A 3107 2929 7.19      
4 A 1543 1455 13.39      
5 A 1467 1383 10.90      
6 A 1427 1346 4.65      
7 A 933 879 2.06      
8 A 758 715 0.51      
9 A 617 582 57.44      

Unscaled Zero Point Vibrational Energy (zpe) 8132.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 7668.7 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 MP2/6-31G*
ABC
5.29997 0.44447 0.44384

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.110 0.000 -0.007
S2 -0.694 0.000 -0.002
H3 1.434 0.001 1.040
H4 1.506 -0.897 -0.486
H5 1.506 0.896 -0.487

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5
C11.80401.09511.09111.0911
S21.80402.36872.42422.4244
H31.09512.36871.77131.7713
H41.09112.42421.77131.7928
H51.09112.42441.77131.7928

picture of thiomethoxy state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 C1 H3 107.032 S2 C1 H4 111.332
S2 C1 H5 111.349 H3 C1 H4 108.241
H3 C1 H5 108.239 H4 C1 H5 110.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability