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

A new emissive macrocycle ligand bearing three phenylurea groups (L1) has been synthesized and fully characterised. Several mononuclear complexes with nitrate, perchlorate and tetrafluoroborate salts of transition and post-transition metals (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and char...

Full description

Saved in:
Bibliographic Details
Published inInorganica Chimica Acta Vol. 381; pp. 85 - 94
Main Authors Núñez, Cristina, Aldrey, Anxela, García, Verónica, Bastida, Rufina, Macías, Alejandro, Lodeiro, Carlos
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.02.2012
Subjects
Anion recognition
Exciplex
Fluorescence sensor
Macrocycles
Metal complexes
Phenylurea
Exciplex
Phenylurea
Anion recognition
Fluorescence sensor
Macrocycles
Metal complexes
Online AccessGet full text

Cover

More Information
Summary:A new emissive macrocycle ligand bearing three phenylurea groups (L1) has been synthesized and fully characterised. Several mononuclear complexes with nitrate, perchlorate and tetrafluoroborate salts of transition and post-transition metals (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterised. [Display omitted] ► A new emissive macrocycle ligand bearing three phenylurea groups (L1) has been synthesized and characterised. ► The interaction with some metal ions and anions was explored in solution by UV–Vis and emission spectroscopy. ► For comparative purposes, the coordination ability of two chemosensors containing nitrophenylurea pendant-arms were studied. A new emissive macrocycle ligand bearing three phenylurea groups (L1) has been synthesized and fully characterised. Several mononuclear complexes with nitrate, perchlorate and tetrafluoroborate salts of transition and post-transition metals (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterised. For comparative purposes, the coordination ability of two nonfluorescent macrocyclic ligands (L2 and L3) 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 L1. All new compounds were characterised by microanalysis, IR, UV–Vis and fluorescence emission, FAB and ESI mass spectrometry and conductivity measurements.
ISSN:0020-1693
1873-3255
DOI:10.1016/j.ica.2011.05.031