Novel emissive phenylurea-based macrocyclic chemosensor: Synthesis, fluorescent and complexation studies
摘要:
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 (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterized. 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. (C) 2011 Elsevier B.V. All rights reserved.
Novel emissive phenylurea-based macrocyclic chemosensor: Synthesis, fluorescent and complexation studies
摘要:
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 (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterized. 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. (C) 2011 Elsevier B.V. All rights reserved.
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 (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterized. 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. (C) 2011 Elsevier B.V. All rights reserved.