New coordination polymers based on a novel polynitrile ligand: Synthesis, structure and magnetic properties of the series [M(tcnoetOH)2(4,4′-bpy)(H2O)2] (tcnoetOH−=[(NC)2CC(OCH2CH2OH)C(CN)2]−; M=Fe, Co and Ni) - Université de Bretagne Occidentale Accéder directement au contenu
Article Dans Une Revue Inorganica Chimica Acta Reviews Année : 2008

New coordination polymers based on a novel polynitrile ligand: Synthesis, structure and magnetic properties of the series [M(tcnoetOH)2(4,4′-bpy)(H2O)2] (tcnoetOH−=[(NC)2CC(OCH2CH2OH)C(CN)2]−; M=Fe, Co and Ni)

Résumé

A novel polynitrile anionic ligand, tcnoetOH−(=[(NC)2CC(OCH2CH2OH)C(CN)2]−), has been synthesized by a one-pot reaction from a cyclic acetal and malononitrile. This ligand has been successfully used to prepare, with 4,4′-bpy as co-ligand, a novel series of coordination polymers formulated as [M(tcnoetOH)2(4,4′-bpy)(H2O)2] with M(II) = Fe (1), Co (2) and Ni (3). These isostructural compounds present a linear chain structure consisting of octahedrally coordinated metal ions bridged by trans 4,4′-bpy ligands. The coordination sphere of the metal ions is completed with two terminal tcnoetOH− ligand and two water molecules. The magnetic properties indicate that the three compounds are paramagnetic, as expected from the long 4,4′-bpy bridge connecting the metal atoms. Their magnetic properties have been fitted with a model of isolated ions including a zero field splitting for the Fe(II) and Ni(II) derivatives.

Domaines

Chimie

Dates et versions

hal-01580537 , version 1 (01-09-2017)

Identifiants

Citer

Samia Benmansour, Fatima Setifi, Carlos J. Gómez-García, Smail Triki, Eugenio Coronado. New coordination polymers based on a novel polynitrile ligand: Synthesis, structure and magnetic properties of the series [M(tcnoetOH)2(4,4′-bpy)(H2O)2] (tcnoetOH−=[(NC)2CC(OCH2CH2OH)C(CN)2]−; M=Fe, Co and Ni). Inorganica Chimica Acta Reviews, 2008, 361 (14-15), pp.3856 - 3862. ⟨10.1016/j.ica.2008.02.046⟩. ⟨hal-01580537⟩
57 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More