The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Towards Visible-Light Photocatalytic Reduction of Hypercoordinated Silicon Species》. Authors are Levernier, Etienne; Leveque, Christophe; Derat, Etienne; Fensterbank, Louis; Ollivier, Cyril.The article about the compound:Tris(triphenylphosphine)chlororhodiumcas:14694-95-2,SMILESS:[Rh]Cl.P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.P(C4=CC=CC=C4)(C5=CC=CC=C5)C6=CC=CC=C6.P(C7=CC=CC=C7)(C8=CC=CC=C8)C9=CC=CC=C9).Quality Control of Tris(triphenylphosphine)chlororhodium. Through the article, more information about this compound (cas:14694-95-2) is conveyed.
Nowadays, the quest of new radical precursors based on heteroatom complexes occupies an increasingly prominent position in contemporary research. Herein, the authors studied the behavior and the limitations of hexa- or pentacoordinated organochlorosilanes and related pentacoordinated silyliums as new families of complexes for the generation of radicals under photocatalytic reductive conditions. Particularly, treatment of chloro(phenyl)bis[N,S-pyridine-2-thiolato(-)]silicon(IV) or the related silylium derivative with the fac-Ir(ppy)3 (5 mol-%)/NEt3 (1.5 equiv) system under blue LEDs irradiation generates a thiopyridyl radical which can participate in the formation of a C-S bond by reaction with an allylsulfone. Computational studies supported this exptl. finding, and particularly by showing that homolytic fragmentation of C-Ts bond is favored over the fragmentation of thiopyridyl radical.
Compounds in my other articles are similar to this one(Tris(triphenylphosphine)chlororhodium)Quality Control of Tris(triphenylphosphine)chlororhodium, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.
Reference:
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