A more flexible long-chain bis(salamo)-like fluorescent probe based on FRET and ICT effects for the identification of aluminum ion in the environment and plants

Phenothiazine appended thiophene derivative: a trilateral approach to copper ion detection in living cells and aqueous samples

“…Consequently, it provides a compelling depiction of intramolecular charge transfer (ICT) dynamics, specifically involving electron transfer from the highest occupied molecular orbital (HOMO) to the lowest unoccupied molecular orbital (LUMO). 39,40 Within the PTZ-SCN-Cu 2+ complex, it is evident that the HOMO's electron density is localized around the metal ion, while the LUMO's electron density predominantly resides within the thiophene moiety, potentially mitigating any intramolecular charge transfer between thiophene acetonitrile and phenothiazine (Fig. 12).…”

A Small Molecule Fluorescent Probe for the Detection of Zn2+ and Alcoholic Strength in Chinese Baijiu

“…The reaction solution was concentrated until a yellow solid precipitated, followed by recrystallization using anhydrous ethanol, filtration and rinsing of the product with cold ethanol to give a pale-yellow solid (279. 24…”

“…In comparison to other solvents as shown in Figure S4, DZ (10 μM) exhibited robust fluorescence emission solely in water. [24][25] The stock solution of this probe was initially prepared in DMSO, leading us to hypothesize that the observed fluorescence emission of DZ in water might be associated with AIE. Ethanol is the most familiar organic solvent encountered in daily life, including in traditional Chinese liquors such as Baijiu and in the common practice of using 75 % ethanol as a sterilizing agent.…”