A Dual-Signaling Ferrocene-Pyrene Dyad: Triple-Mode Recognition of the Cu(II) Ions in Aqueous Medium

We report a structure of ferrocene-pyrene conjugate ( 1 ) comprising electro and photo-active dual-signaling units. In particular, 1 upon interaction with Cu(II), displays selectively one-photon fluorescence quenching, but it shows two-photon absorption (TPA) cross-section 1230 GM (at 780 nm). Furth...

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Veröffentlicht in:	Journal of fluorescence 2017-11, Vol.27 (6), p.2279-2286
Hauptverfasser:	Wani, Manzoor Ahmad, Pandey, Mrituanjay D., Pandey, Rampal, Maurya, Sandeep Kumar, Goswami, Debabrata
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION Analytical Chemistry ATOMIC AND MOLECULAR PHYSICS Biochemistry Biological and Medical Physics Biomedical and Life Sciences Biomedicine Biophysics Biotechnology Copper COPPER IONS DETECTION Electrochemical analysis ELECTROCHEMISTRY FERROCENE FLUORESCENCE Light emitting diodes Original Article OXIDATION Photon absorption PHOTONS PYRENE QUENCHING Signaling SIGNALS SILVER CHLORIDES
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Zusammenfassung:	We report a structure of ferrocene-pyrene conjugate ( 1 ) comprising electro and photo-active dual-signaling units. In particular, 1 upon interaction with Cu(II), displays selectively one-photon fluorescence quenching, but it shows two-photon absorption (TPA) cross-section 1230 GM (at 780 nm). Further, 1 displayed two irreversible oxidative waves at 0.39 V and 0.80 V (vs Ag/AgCl), in the electrochemical analysis which upon addition of Cu 2+ , led to the negative potential shift in both the oxidative waves to appear at 0.25 V and 0.68 V. The triple mode changes in presence of Cu(II) suggesting the possible application of 1 for the detection of Cu(II) in aqueous media. Graphical Abstract
ISSN:	1053-0509 1573-4994 1573-4994
DOI:	10.1007/s10895-017-2169-0