title: Modular Synthesis of Spirocyclic Germafluorene-Germoles: A New Family of Tunable Luminogens.
abstract: The zirconium-mediated synthesis of a new class of air-stable spirocyclic germafluorene-germole (SGG) luminogens is reported. These species contain ring-fused germafluorene and germole units that display color-tunable fluorescence when peripheral aryl substituents are appended. Three distinct pathways are introduced for SGG modification (Stille, Suzuki-Miyaura, and zirconocene-mediated couplings), which enable the preparation of new libraries of molecular and polymeric SGG light-emitters with tunable luminescence and desirable thermal- and photo-stability.
authors.affiliation: Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G 2G2, Alberta (Canada), Fax: (+1) 780-492-8231.
authors.forename: Olena
authors.initials: O
authors.lastname: Shynkaruk
authors.affiliation: Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G 2G2, Alberta (Canada), Fax: (+1) 780-492-8231.
authors.forename: Gang
authors.initials: G
authors.lastname: He
authors.affiliation: Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G 2G2, Alberta (Canada), Fax: (+1) 780-492-8231.
authors.forename: Robert
authors.initials: R
authors.lastname: McDonald
authors.affiliation: Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G 2G2, Alberta (Canada), Fax: (+1) 780-492-8231.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Ferguson
authors.affiliation: Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, T6G 2G2, Alberta (Canada), Fax: (+1) 780-492-8231. erivard@ualberta.ca.
authors.forename: Eric
authors.initials: E
authors.lastname: Rivard
keywords: fluorescence; germafluorenes; germoles; solid-state emission; spiro compounds