VII Simposio Internacional de Química 2019 SIQ 2019
VII Conferencia "Ciencias Químicas"
VII Simposio Internacional de Química 2019 SIQ 2019 VII Conferencia "Ciencias Químicas"24/06/2019 12:00 a 28/06/2019 22:00 Hora de Cuba
Cayos de Villa Clara,
Cuba
Trabajos
Understanding the selective-sensing mechanism of Al3+ cation by a chemical sensor based on Schiff-base. A novel theoretical methodology
- MsC. Manuel Treto Suarez
Abstract A methodology that allows to explain experimental behavior of a turn-on luminescent chemosensor is proposed and verified in 1-[(1H-1,2,4-triazole-3-ylimino)-methyl]-naphthalene-2-ol] (L1), selective to Al3+ cations. This sensor increases its emission when interacting with ion upon excitation at 442 nm, which is denoted as the chelation-enhanced fluorescence (CHEF) effect. The PET is responsible for the fluorescence quenching in L1 at 335 nm, in Ni2+/L1 at 385 nm and in Zn2+/L1 at 378 nm...
Understanding the selective-sensing mechanism of Al3+ cation by a chemical sensor based on Schiff-base. A novel theoretical methodology
- MsC. Manuel Treto Suarez
Abstract A methodology that allows to explain experimental behavior of a turn-on luminescent chemosensor is proposed and verified in 1-[(1H-1,2,4-triazole-3-ylimino)-methyl]-naphthalene-2-ol] (L1), selective to Al3+ cations. This sensor increases its emission when interacting with ion upon excitation at 442 nm, which is denoted as the chelation-enhanced fluorescence (CHEF) effect. The PET is responsible for the fluorescence quenching in L1 at 335 nm, in Ni2+/L1 at 385 nm and in Zn2+/L1 at 378 nm...
