Magnetic Properties of a Manganese(II) Trinuclear Complex Involving a Tridentate Schiff-Base Ligand

The Schiff condensation of 2-pyridinecarboxaldehyde N-oxide with 2-aminophenol gave a tridentate ligand, abbreviated as Hpoxap. This ligand bears the functionality of a terminating group in a trinuclear complex [Mn(poxap)Mn(ac)4Mn(poxap)], where ac- is the acetate bridge. The magnetic data were trea...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2007-03, Vol.46 (5), p.1544-1546
Main Authors: Herchel, Radovan, Boča, Roman, Gembický, Milan, Falk, Karsten, Fuess, Hartmut, Haase, Wolfgang, Svoboda, Ingrid
Format: Article
Language:English
Subjects:
Aminophenols - chemistry
Cyclic N-Oxides - chemistry
Ligands
Magnetics
Manganese - chemistry
Molecular Structure
Organometallic Compounds - chemistry
Pyridines - chemistry
Schiff Bases - chemistry
Temperature
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:The Schiff condensation of 2-pyridinecarboxaldehyde N-oxide with 2-aminophenol gave a tridentate ligand, abbreviated as Hpoxap. This ligand bears the functionality of a terminating group in a trinuclear complex [Mn(poxap)Mn(ac)4Mn(poxap)], where ac- is the acetate bridge. The magnetic data were treated simultaneously during the fitting procedure with the spin Hamiltonian containing isotropic exchange, the zero-field splitting parameters, and the molecular-field correction and resulted in J Mn - Mn/hc = −4.73 cm-1, g Mn(t) = 1.96, D Mn(t)/hc = −0.45 cm-1, and zj/hc = +0.45 cm-1 with ground state S = 5/2, where t = terminal atom. At low temperature, the features of a ferromagnetic correlation become evident.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic061717b