Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/19371
Title: | Lanthanide salen-type complexes exhibiting single ion magnet and photoluminescent properties |
Author: | Ren, Min Xu, Zhong-Li Bao, Song-Song Wang, Ting-Ting Zheng, Ze-Hua Ferreira, Rute A. S. Zheng, Li-Min Carlos, Luis D. |
Keywords: | SCHIFF-BASE COMPLEXES MOLECULE-MAGNET CRYSTAL-STRUCTURE CHAIN MAGNET BEHAVIOR ANISOTROPY RELAXATION LUMINESCENCE COORDINATION LIGAND |
Issue Date: | 2016 |
Publisher: | ROYAL SOC CHEMISTRY |
Abstract: | Salen-type mononuclear lanthanide complexes with formula (Et3NH)[Ln(3-NO2-salen)(2)].solvent (Ln = Eu (1Eu), Tb (2Tb), Dy (3Dy), Ho (4Ho), Er (5E gamma), Yb (6Yb); 3-NO2-salen(2-) = N, N'-bis(3-nitro-salicylaldehyde) ethylenediamine dianion) are reported. These compounds are isostructural in which two crystallographically distinct 3-NO2-salen(2-) act as tetradentate ligands encapsulating the lanthanide ions in a meridional mode forming the [LnN(4)O(4)] cores. Slow magnetization relaxation processes associated with single ion magnet (SIM) behaviors are observed in complexes 3Dy, 5Er and 6Yb with the Kramer ions but not in 2Tb and 4Ho with non-Kramer ions. Photoluminescence studies reveal that complexes 1Eu, 5Er and 6Yb exhibit characteristic lanthanide luminescence with sharp and well-separated emission bands. Complex 1Eu is of particular interest in which the organic ligand functioning as a powerful absorbing sensitizer apparently broadens the excitation range into 300-500 nm with the maximum of 460 nm. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19371 |
DOI: | 10.1039/c5dt03897a |
ISSN: | 1477-9226 |
Publisher Version: | 10.1039/c5dt03897a |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Lanthanide salen-type complexes exhibiting single ion magnet and photoluminescent properties_10.1039c5dt03897a.pdf | 2.5 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.