Ruhlandt-Senge, Karin published the artcileSynthesis and structural characterization of lithium thiolates: dependence of association and aggregation on donor hapticity and ligand size and synthesis of the first trimeric lithium thiolate [Li(THF)SR]3 and the solvent-separated ion pair [Li(12-crown-4)2][SR] (R = 2,4,6-tBu3C6H2), Formula: C15H24S, the publication is Inorganic Chemistry (1996), 35(20), 5820-5827, database is CAplus.
The synthesis and structural characterization of several Li thiolates are reported. Formation of discrete species can be achieved by careful variation of ligand size and donor hapticity, as exemplified by the monomeric formulation of Li(PMDTA)STrityl (PMDTA = N,N,N’,N”,N”-pentamethyldiethylenetriamine, Trityl = CPh3) (1) and Li(PMDTA)STrip (2) (Trip = 2,4,6-iPr3C6H2), vs. dimeric [Li(THF)2STrityl]2, (3) and [Li(TMEDA)STrip]2 (4) (TMEDA = N,N,N’,N’-tetramethylethylenediamine). By control of the stoichiometry of the donor, the 1st trimeric Li thiolate [Li(THF)SMes*]3 (5) (Mes* = 2,4,6-tBu3C6H2), exhibiting a six-membered ring system and rare three-coordinate Li centers, is formed. In contrast, use of a crown ether gives the monomeric contact ion pair Li(12-crown-4)STrityl (6) while employing the cumbersome – SMes* ligand produces the 1st solvent-separated Li thiolate [Li(12-crown-4)2][SMes*], (7). All compounds were prepared by reacting the resp. thiols with BuLi in the presence of various donor adjuncts and the target mols. were characterized using 1H NMR and IR spectroscopy and m.p. criteria. Crystal structure data of the solid state structures are as follows. 1: At 130 K, a 12.152(3) b 15.260(3), c 14.764(5) ?, ¦Â 106.90(2)¡ã, Z = 4, monoclinic, space group P21/c, R = 0.064. 2: At 228 K, a 15.805(7), b 9.206(4), c 18.923(7) ?, ¦Â 99.74(3)¡ã, Z = 4, monoclinic, space group P21/n, R = 0.085. 3: At 213 K, a 13.141(3), b 12.381(2), c 14.664(3) ?, ¦Â 94.84(3)¡ã, Z = 2, monoclinic, space group P21/n, R = 0.052. 4: At 130 K, a 18.906(4), b 9.516(2), c 25.617(5) ?, ¦Â 92.75(3)¡ã, Z = 4, monoclinic, space group I2/a, R = 0.067. 5: At 213 K, a 9.991(2), b 17.934(4), c 20.314(4) ?, ¦Á 83.36(3)¡ã, ¦Â 76.74(3), ¦Ã 76.72(3)¡ã, Z = 2, triclinic, space group P1, R = 0.063. 6: At 213 K, a 10.542(2), b 12.821(3), c 18.729(4) ?, ¦Â 102.22(3)¡ã, Z = 4, monoclinic, space group P21/c, R = 0.086. 7: At 213 K, a 10.134(2), b 19.800(4), c 18.423(4) ?, ¦Â 93.15(3)¡ã, Z = 4, monoclinic, space group P21/n, R = 0.092.
Inorganic Chemistry published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Formula: C15H24S.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia