AUDHYA, Anandalok; MAITY, Manoranjan; MD TOWSIF ABTAB, Sk; MATHONIÈRE, Corine; KALISZ, Marguerite; CLÉRAC, Rodolphe

doi:10.1016/j.poly.2011.11.048

Métadonnées

Licence d’utilisation du document

AUDHYA, Anandalok
Indian Association for the Cultivation of Science
Heritage Institute of Technology, Departement of Chemistry & Environment

MAITY, Manoranjan
Indian Association for the Cultivation of Science

MD TOWSIF ABTAB, Sk
Indian Association for the Cultivation of Science

Langue

Article de revue

Ce document a été publié dans

Polyhedron. 2012, vol. 33, p. pp. 353-359

Elsevier

Résumé en anglais

Using di-2-pyridyl ketonoxime (Hdpko) as an oxime-based ligand in combination with several polyhydric alcohols, viz. ethanediol (H2ed), propanediol (H2pd) and pentaerythritol (H4per),wehave synthesized a series of trinuclear complexes involving a linear MnII-MnIV-MnII core, viz. [Mn3(dpko)4(ed)Cl2]-2CH3CN.H2O 1, [Mn3(dpko)4(pd)Cl2].CH3CN.H2O.0.5H2pd 2 and [Mn3(dpko)4(H2per)Cl2].4H2O 3, respectively. The trinuclear complexes contain mixed valent MnII-MnIV-MnII units in a linear topology in which MnII and MnIV spin carriers are ferromagnetically coupled. The temperature dependence of the magnetic susceptibility has been fitted with a liner spin trimer model based on the H = -2J{SMn1.SMn2 + SMn10.SMn2} Heisenberg Hamiltonian with J/kB = +1.4(1) K for 1; +4.9(1) K for 2 and +3.7(1) K for 3, leading for the three complexes to an ST = 13/2 ground state.< Réduire

Mots clés en anglais

Oxime-based ligand

Polyhydric alcohols

Mixed valent

Ferromagnetically coupled

Métadonnées

Licence d’utilisation du document

Polyalcohols as ancillary ligands in manganese-oxime chemistry: Syntheses, structures and magnetic properties of a series of trinuclear complexes involving a linear MnII-MnIV-MnII core

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche