Oxidized Bis(indolyl)methane Derivatives with Diverse Signaling Units: An Excitation-Dependent Fluorescence Response toward Heavy Metal Pollutants in an Aqueous Medium

Multifaceted Applications of Luminescent Metalloporphyrin Derivatives: Fluorescence Turn-On Sensing of Nicotine and Antimicrobial Activity

“…The absorbance at the 388 nm band gradually decreased upon addition of nicotine with concomitant enhancement at the 415 nm band. It is known in the literature that when metalloporphyrins undergo axial ligation, especially with ligands that donate electron density to the metal center, the absorption bands often experience a shift to longer wavelengths . Considering this, we can expect that nicotine prefers to bind with the metal center, either above or below the plane of the porphyrin ring.…”

Comparative Analysis of the Hydrazine Interaction with Arylene Diimide Derivatives: Complementary Approach Using First Principles Calculation and Experimental Confirmation

“…Additionally, the PDI compounds possess an extended π-conjugated aromatic core compared to NDI derivatives, facilitating electron delocalization and stabilization of the radical anion . Furthermore, the larger π-conjugated structures of PDI compounds lead to the formation of larger aggregates with a percolated network, as evident from FESEM analysis . These two factors further facilitate the hydrazine interactions with PDI derivatives.…”