Slow Magnetic Relaxation in Lanthanide Complexes with Chelating Nitronyl Nitroxide Radical

Two rare-earth radical complexes [Ln(hfac)3NIT-2Py]·0.5C7H16 [Ln = Tb (1), Dy (2)] have been synthesized and characterized structurally as well as magnetically. Both complexes are isomorphous, in which the NIT-2Py radical is coordinated to the LnIII ion in a chelating manner. Magnetic studies reveal...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2010-06, Vol.49 (11), p.4735-4737
Main Authors: Wang, Xiao-Ling, Li, Li-Cun, Liao, Dai-Zheng
Format: Article
Language:English
Subjects:
Chelating Agents - chemistry
Crystallography, X-Ray
Free Radicals - chemistry
Lanthanoid Series Elements - chemistry
Ligands
Magnetics
Models, Molecular
Molecular Structure
Nitrogen Oxides - chemistry
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Pyridines - chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two rare-earth radical complexes [Ln(hfac)3NIT-2Py]·0.5C7H16 [Ln = Tb (1), Dy (2)] have been synthesized and characterized structurally as well as magnetically. Both complexes are isomorphous, in which the NIT-2Py radical is coordinated to the LnIII ion in a chelating manner. Magnetic studies reveal that complex 1 shows a frequency-dependent, alternating-current magnetic susceptibility typical of a single-molecule magnet, whereas slow magnetic relaxation is observed in 2 under an applied direct-current field.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic100008g