Theoretical Study on the Photophysical Mechanism for the Detection of Biothiols Based on the 1,3,4-Thiadiazole Fluorescence Probe

Aggregation-Modulated Excited-State Intramolecular Proton Transfer and Antifungal Potential of Selected 1,3,4-Thiadiazole Derivatives

Spectroscopic results support the occurrence of excited-state intramolecular proton transfer (ESIPT) in both derivatives and indicate that this process is facilitated by molecular aggregation, which identifies PhTD-ClB and FTD-EtB as environmentally responsive ESIPT fluorophores.

A nopinone-based ratiometric fluorescent probe for rapid detection of GSH and its applications in the environment and biological imaging.

Herein, we have developed a novel ratiometric fluorescent probe through rational design and synthesis, named 2-((5-(4-(3,3-dimethyl-1,2,3,4-tetrahydro-2,4-methoxyacridin-9-yl) phenyl) thiophen-2-yl) methylene)-1H-indene-1,3 (2H)-dione, abbreviated as TA-PT-ID. TA-PT-ID is based on the nopinone skeleton and utilizes a M...

Kinetic Study of the Formation of the Colored Azo Dye (2,2'-(1,4-Phenylenebis (diazene-2,1-diyl)) bis (4-methoxyaniline)) From p-Anisidine

A kinetic study on the preparation of an azo dye from the reaction between 1,4-di ((E)-chlorodiazenyl) benzene and p-anisidine (4-methoxy-aniline), was conducted at 290 K, with a maximum absorption wavelength (lmax) of 398 nm. The reaction was carried out in an acidic medium (pH = 5.27), under optimal conditions determ...

Rongalite-Promoted One-Pot Reductive Cyclization Strategy for the Construction of Pyrrolo[1,2-α]quinoxalines from 1-(2-Nitrophenyl)pyrroles

A transition-metal-free strategy for the synthesis of pyrrolo[1,2-α]quinoxalines and 7-methylindolo[1,2-α]quinoxaline from 1-(2-nitrophenyl)-1H-pyrrole or 3-methyl-1-(2-nitrophenyl)-1H-indole using rongalite have been developed. In this transformation, rongalite serves a dual function, acting as both a reducing agent...

Chromene–hydrazinopyridine schiff base for selective UV–Vis detection of Cu2+ and a reversible INHIBIT logic gate

A Benzimidazo[1,2-c]quinazoline Derivative as a Precursor for Schiff Base Cu(II) Complex: Synthesis, Spectroscopic and Photophysical Insights

In this work, a benzimidazo[1,2-c]quinazoline derivative (3) was synthesized and shown to act as a versatile precursor that can be transformed into a Schiff base upon coordination with Cu(II), yielding the corresponding Cu(II) complex 4b. The influence of this metal coordination on photophysical properties was subseque...