title: Redox active mesoporous hybrid materials by in situ syntheses with urea-linked triethoxysilylated phenothiazines.
abstract: Triethoxysilyl functionalized phenothiazinyl ureas were synthesized and immobilized by in situ synthesis into mesoporous hybrid materials. The designed precursor molecules influence the structure of the final materials and the intermolecular distance of the phenothiazines. XRD and N(2) adsorption measurements indicate the presence of highly ordered two-dimensional hexagonally structured functional materials, while the incorporation of the organic compounds in the solid materials was proved by means of (13)C and (29)Si solid state NMR spectroscopy as well as by FT-IR spectroscopy. Upon oxidation with (NO)BF(4) or SbCl(5), stable phenothiazine radical cations were generated in the pores of the materials, which was detected by means of UV/Vis, emission, and EPR spectroscopies.
authors.affiliation: Fachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. Geb. 54, D-67663 Kaiserslautern, Germany.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Zhou
authors.forename: Adam W
authors.initials: AW
authors.lastname: Franz
authors.forename: Sarah
authors.initials: S
authors.lastname: Bay
authors.forename: Biprajit
authors.initials: B
authors.lastname: Sarkar
authors.forename: Andreas
authors.initials: A
authors.lastname: Seifert
authors.forename: Piaoping
authors.initials: P
authors.lastname: Yang
authors.forename: Alex
authors.initials: A
authors.lastname: Wagener
authors.forename: Stefan
authors.initials: S
authors.lastname: Ernst
authors.forename: Markus
authors.initials: M
authors.lastname: Pagels
authors.forename: Thomas J J
authors.initials: TJ
authors.lastname: Müller
authors.forename: Werner R
authors.initials: WR
authors.lastname: Thiel