Exploiting anionic and cationic interactions with a new emissive imine-based β-naphthol molecular probe

• Published in: Inorganic chemistry communications 2009-09, Vol.12 (9), p.905-912
• Main Authors: Fernandes, Luz, Boucher, Maxime, Fernández-Lodeiro, Javier, Oliveira, Elisabete, Nuñez, Cristina, Santos, Hugo M., Capelo, Jose Luis, Faza, Olalla Nieto, Bértolo, Emilia, Lodeiro, Carlos
• Format: Article
• Language: English
• Subjects: Anion; Density functional theory; DFT; Molecular probe; Schiff-base; β-naphthol emission
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2009.07.011

A new emissive molecular probe derived from 1,7-bis(2′-formylphenyl)-1,4,7-trioxaheptane and 2-hydroxy-1-naphthaldehyde has been synthesized by a Schiff-base condensation method. Its sensor capability towards cations such as Cu 2+, Zn 2+, Cd 2+ and Hg 2+, and anions such as halides (F −, Cl −, Br − and I −) and CN − was explored in DMSO solution. The geometry was optimized using Density Functional Theory (DFT). The probe showed remarkable selectivity for Cu 2+ and interaction with the more basic anions CN − and F −. A new emissive molecular probe derived from 1,7-bis(2′-formylphenyl)-1,4,7-trioxaheptane and 2-hydroxy-1-naphthaldehyde has been synthesized by a Schiff-base condensation method. Its sensor capability towards cations such as Cu 2+, Zn 2+, Cd 2+ and Hg 2+, and anions such as halides (F −, Cl −, Br − and I −) and CN − was explored in DMSO solution. The geometry was optimized using density functional theory (DFT). The probe showed remarkable selectivity for Cu 2+ and interaction with the more basic anions CN − and F −.