Novel emissive phenylurea-based macrocyclic chemosensor: Synthesis, fluorescent and complexation studies

Cristina Núñez, Anxela Aldrey, Verónica García, Rufina Bastida, Alejandro MacÍas, Carlos Lodeiro

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new emissive macrocycle ligand bearing three phenylurea groups (L 1) has been synthesized and fully characterised. Several mononuclear complexes with nitrate, perchlorate and tetrafluoroborate salts of transition and post-transition metals (Cu 2+, Ni 2+, Co 2+, Zn 2+ and Cd 2+) were synthesized and characterised. For comparative purposes, the coordination ability of two nonfluorescent macrocyclic ligands (L 2 and L 3) containing three nitrophenylurea pendant-arms towards the same metal ions were studied. The interaction with transition and post-transition metal ions, and anions was explored in solution by UV-Vis and emission spectroscopy with ligand L 1. All new compounds were characterised by microanalysis, IR, UV-Vis and fluorescence emission, FAB and ESI mass spectrometry and conductivity measurements.

Original languageEnglish
Pages (from-to)85-94
Number of pages10
JournalInorganica Chimica Acta
Volume381
Issue number1
DOIs
Publication statusPublished - 15 Feb 2012

Keywords

  • Anion recognition
  • Exciplex
  • Fluorescence sensor
  • Macrocycles
  • Metal complexes
  • Phenylurea

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