Synthesis of advanced fluorescent probes — water-soluble symmetrical tricarbocyanines with phosphonate groups

Contact-Biocide TiO2 Surfaces by Surface-Initiated Atom Transfer Radical Polymerization with Chemically Stable Phosphonate Initiators

“…Diethyl-(ω-bromobutyl)phosphonate, diethyl-(ω-bromohexyl)phosphonate, diethyl-(ω-bromooctyl)phosphonate, and diethyl-(ωbromodecyl)phosphonate were prepared using a slightly modified protocol according to Podrugina et al 47 Diethyl-(ω-azidobutyl)phosphonate, diethyl-(ω-azidohexyl)phosphonate, diethyl-(ωazidooctyl)phosphonate, and diethyl-(ω-azidodecyl)phosphonate were prepared using a modified protocol according to Janczewski et al 48 Diethyl-(ω-azidobutyl)phosphonate 1a, diethyl-(ω-azidohexyl)phosphonate 1b, diethyl-(ω-azidooctyl)phosphonate 1c, and diethyl-(ω-azidodecyl)phosphonate 1d were prepared using a modified protocol according to Haelters et al 49 Diethyl ■ METHODS NMR Spectroscopy. 1 H-, 13 C-, and 31 P-NMR measurements were carried out at room temperature in 5 mm outside diameter sample tubes with a Bruker Avance III HD 400 MHz or Bruker Avance I HD 500 MHz spectrometer (AV400 and AV500, Bruker Biospin GmbH, Ettlingen, Germany).…”

A cyanine‐based dual‐modal probe for fluorimetric detection of mercury ion and colorimetric sensing of pH

“…Performance of probe CY for detection of Hg 2+ was compared with other reported Hg 2+ fluorescent probes [37][38][39][40] to further evaluate the efficiency of probe CY for Hg 2+ sensing. Related parameters are listed in Table 1.…”

“…measured at different times(1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43, 45, 47, 49 and 51 min) upon addition of Hg 2+ ion (20 μM) in DMSO/H 2 O (7:3, v/v) were measured and shown in Figure 5. Changes in the fluorescence intensity at 625 nm of CY (20 μM) with upon addition of 1 equivalent of Hg 2+ ion in DMSO/H 2 O (7:3, v/v) revealed that probe CY responded to Hg 2+ ion very rapidly and adding Hg 2+ ion to CY solution induced remarkable enhancement of the fluorescence intensity in 1 min.…”