Emerging trends in organotellurolate chemistry derived from platinoids

Abstract

This perspective begins with the discussion of various basic synthetic approaches applied for the synthesis of several organotellurium ligands, their chemistry derived from platinum group metals, and the reactivity difference among them. It also gives an overview on the development of various bi, tri, and high nuclearity complexes syntheses. Investigations targeting the organotellurium ligand systems revealed a remarkable reactivity due to the dynamic nature of the lone pair available on the tellurium metal, which has led to a serendipitous isolation of the complexes [Cp*Ir(ppy)(η¹-Te₂Ph₂)]⁺, [Cp*IrOs₃(μ-H)₂(μ-Tetol)₂(CO)₇], [Pt{TeC₅H₃(3-R)N}₂Te(PPh₃)], [Pt{Ph₂PCH(TeC₅H₃(3-R)NPPh₂)}₂] (R = H, Me), and various other high nuclearity heterometallic [Cp*Ir(CO)(μ-TeC₆H₄)₂MCp*Cl]Cl (M = Rh, Ir) complexes. Studies of the various complexes investigated the various binding modes of coordination and the facile cleavage of the Te–C and Te–Te bonds of tellurium-based ligand systems. Attempts have been made to present a comprehensive account of the subject matter. Various promising aspects of these complexes, such as their synthesis, reactivity, structures, and applications, are covered in this review.