Dual chemosensing properties of new ferrocene-based receptors towards fluoride and copper(II) ions

Fluorescence and Colorimetric Chemosensors for Fluoride-Ion Detection

“…The IE/IM ratios of the 81•F − complex are dependent on the concentration of 81, implying that 37). 100 The absorption peak of one of these, 82, in CH 3 CN at 480 nm is blue-shifted by 15 nm upon addition of F − . Simultaneously, a significant increase in the intensity of fluorescence emission at 438 nm occurs.…”

“…New ferrocene-based receptors for F – were developed by Devaraj et al (Figure ) . The absorption peak of one of these, 82 , in CH 3 CN at 480 nm is blue-shifted by 15 nm upon addition of F – .…”

Mono- and di-ferrocene conjugated 5-methyl benzimidazole based multi-channel receptors for cations/anions with their antimicrobial and anticancer studies

“…5(d) inset). From the literature 34–39 some ferrocene-based receptors for Cu 2+ and F − were noted in Chart 1, whereas not many reports for Sn 2+ ion sensing were found, and hence we are reporting Sn 2+ with ferrocene-based receptors 1 and 2 for the first time.…”

Synthesis and Electrochemical Behavior of Ferrocenyl β‐Ketoamines FcC(O)CH=C(NH(C6H4‐4‐R‘))R

“…Further distinctive is the signal of the cyano groups at 119 ppm in 4 c and 5 c , respectively, and the C,F‐coupling constants in 4 d and 5 d (Experimental). The IR spectra are characterized by the appearance of strong CO, C−N and C=C vibrations in the range of 1450–1600 cm −1 , as typical for this type of groupings in β ‐ketoamines [1,5l,m,18a,c,e,21] . In addition, the ν C≡N vibration in 4 c and 5 c is observed at 2218 cm −1 .…”