A multi-functional fluorescent sensor for Zn2+ and HSO4− based on a new diarylethene derivative

A solvent-dependent chemosensor for fluorimetric detection of Hg2+ and colorimetric detection of Cu2+ based on a new diarylethene with a rhodamine B unit

“…The quantum yields of the cyclization and cyclization reactions for the determination of 1o were 0.54 and 0.02, respectively. 36 The fatigue resistance of 1o indicates that for alternating ultraviolet/visible irradiations, 1o was only reduced by 10.3% after coloring-discoloration cycles executed ten times (Fig. S3 † ).…”

A Ratiometric Fluorescent Sensor Based on Chelation-Enhanced Fluorescence of Carbon Dots for Zinc Ion Detection

“…The probe based on the fluorescent signal for zinc ion detection has been an active topic due to its rapid response, simple operation, and high sensitivity [16,17]. Fluorescence probes for analyzing Zn 2+ have been constructed to date based on different fluorophores, such as Schiff base [18], naphthalene [19], cyanine [20], fluorescein [21], coumarin [22], pyrene [23], and quinoline [24]. Liu et al synthesized a series of naphthalene-2-pyridyl hydrazone compounds, which chelate with zinc ions, leading to the enhancement of fluorescence emission.…”

Sequential Recognition of Bisulfate and Acetate by a Ruthenium(II) Complex: Experimental and Theoretical Studies

“…Although, research in recent years has produced relevant advances in the development of optical HSO 4 − and AcO − chemosensors based on different strategies, such as organic compounds containing amide, amine, phenol, hydrazone, pyrrole, urea, imidazole, flavone, triazole, indole and thiourea together with positively charged subunits (imidazolium, guanidinium, pyridinium) that are capable of providing H‐bond donors to recognize anions, these available organic chemosensors have some limitations such as low hydro‐stability, low water solubility, and insufficient selectivity or sensitivity [19–56] . Another strategy is based on the design of metal complex chemosensors, since the presence of the metal ion not only provides additional binding sites for the guest anion but also structurally pre‐organizes the binding sites for optimal anion‐binding via hydrogen bonding and metal ion coordination, resulting in a strong affinity when are compared to purely organic chemosensors [57–68] .…”