Synthesis and structure of [ReOSe(2-Se-py)3]: A rhenium(V) complex with selenium(0) as a ligand

Tricarbonylrhenium(I) Complexes with N‐Heterocyclic Thiones and Selenols

“…[36,37] A similar cleavage reaction has been described recently with the synthesis of an unusual oxidorhenium(V) complex with elemental selenium and two pyridylselenolato ligands, [ReOSe(Sepy) 3 ], from (Sepy) 2 and [ReOCl 3 (PPh 3 ) 2 ]. [38] In all these examples, however, the reduction of the diselenide can readily be explained, either by the oxidation of the metals or by the formation of elemental selenium. In the presented case, the formation of the stable selenium(II) compound pySeBr as a side product might explain the reduction of the diselenide.…”

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh3as a Facile Reductant

“…They mainly contain simple, unsubstituted phenylselenolato ligands . A few more rhenium(V) complexes with special ligands such as acylselenoureas, a diselenolenate, and pyridine‐2‐selenolate have been reported . The rarity of these reports may result from the more complicated syntheses of heavier organochalcogenolato ligands.…”

“…Recently, an oxidorhenium(V) complex with pyridylselenolato ligands was prepared by the reaction of the corresponding diselenide with [ReOCl 3 (PPh 3 ) 2 ] without the addition of a reducing agent. Obviously, the released PPh 3 acted as a selective reducing agent for dipyridyldiselenide, while the oxidation state of rhenium was retained …”

Synthesis and X‐ray Structural Characterization of Di‐p‐aminobenzenediselenide [p‐H2NC6H4Se]2 and its Mercury(II) Derivatives

“…As recently described by our group, bis(2‐pyridyl) diselenide (2‐py 2 Se 2 ) reacts with [ReOCl 3 (PPh 3 ) 2 ] to form the unusual oxidorhenium(V) complex [ReOSe(2‐pySe) 3 ] 24. The oxidorhenium(V) core is bonded to three 2‐pyridineselenolato ligands and a selenium(0) atom.…”