One-electron Transfer Reaction of Pyrylium Cations

Bis(metallaethynyl) Ketones: Synthesis and Structure of {(Ph3P)AuC≡C}2CO and Attempted Transmetalation: Formation and Structure of [1,3-{Ru(dppe)Cp}2{c-COC(OMe)CHCCH}]PF6

“…This is an interesting structure: while there has been a significant amount of work on aromatic pyrylium cations, there are relatively few reports of transition-metal derivatives containing pyrylium ligands. Pyrylium cations with Cr(CO) 3 (η 6 -C 6 H 5 −), (Mn or Re)(CO) 3 (η 5 -C 5 H 4 −), Co 2 (CO) 6 (μ-alkynyl), or ferrocenyl , substituents were investigated by Caro’s group.…”

Cyclic voltammetry and reduction mechanistic studies of styrylpyrylium perchlorates

“…Their cationic nature makes them excellent electron acceptors and gives them interesting properties useful in various applications. They are used as antitumor agents [3], laser dyes [4], sensitizers in photographic materials [5] and semiconductors [6]. The pyrylium salts present potential applications as fluorescent probes for metals detection, adsorption of iodide anions [7] and homogeneous photocatalysts for the degradation of organic pollutants, such as phenolic compounds [8,9] and pesticides [10].…”