Electric Literature of 1038-95-5. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 1038-95-5, Name is Tri-p-tolylphosphine
(Tetramethylthiophene)ruthenium Dichloride Dimer: A Versatile Synthetic Intermediate in Thiophene Coordination Chemistry
The thermal reaction of <(cymene)RuCl2>2 and tetramethylthiophene gives <(TMT)RuCl2>2 (1).Treatment of 1 with silver salts in the presence of various ligands gives salts of <(TMT)RuL3>(2+) where L3=(H2O)3, (CH3CN)3, and TMT.A crystallographic study demonstrated that <(TMT)2Ru>(BF4)2*2CH3NO2 adopts a sandwich structure with sulfur atoms sited cis on the pseudooctahedron.Cyclic voltammetry studies show that <(TMT)2Ru>(2+) undergoes two reversible one-electron reductions.Solutions of 1 and phosphine and amine donors react to give well-behaved monometallic derivatives of the type (TMT)RuCl2L where L is PPr3 and NH2C6H4Me.For bulky L=PPh3 and P(C6H4Me)3, variable-temperature NMR studies demonstrate hindered rotation about the Ru-P and Ru…TMT axes.Treatment of 1 with (Me3Si)2S gives the cluster <(TMT)RuCl>3S(1+) whose PF6(1-) salt was examined by X-ray crystallography.The cluster is comprised of three conjoined pseudooctahedral Ru centers bridged by one mu3-S and three mu-Cl atoms.
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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate