title: Solid-to-solid oxidation of a vanadium(IV) to a vanadium(V) compound: chemisty of a sulfur-containing siderophore.
abstract: Visible light facilitates a solid-to-solid photochemical aerobic oxidation of a hunter-green microcrystalline oxidovanadium(IV) compound (1) to form a black powder of cis-dioxidovanadium(V) (2) at ambient temperature. The siderophore ligand pyridine-2,6-bis(thiocarboxylic acid), H(2)L, is secreted by a microorganism from the Pseudomonas genus. This irreversible transformation of a metal monooxo  to a metal dioxo complex in the solid state in the absence of solvent is unprecedented. It serves as a proof-of-concept reaction for green chemistry occurring in solid matrixes.
authors.affiliation: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States.
authors.forename: Pabitra B
authors.initials: PB
authors.lastname: Chatterjee
authors.forename: Debbie C
authors.initials: DC
authors.lastname: Crans