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Lecture Luminita Marilena Toma

Rooster

WanneerWaar
05 januari 2006 FWN-Building 5113.0202, Nijenborgh 4, 9747 AG, Groningen
Speaker:Dr. Luminita Marilena Toma
Affiliation:Universidad de Valencia, Spain
Title:Complex as ligand strategy in designing nuclearity controlled cyanide-bridged heterometallic compounds
Date:Thu Jan 5, 2006
Start:11.00
Location:FWN-Building 5113.0202
Host:P. Rudolf
Telephone:+31 50 363 4736 / 4974

Abstract

The design and preparation of stable cyanide-bearing six-coordinate complexes of formula [MIII(L)(CN)x](x+l-m)- (M = trivalent transition metal ion and L = polydentate blocking ligand) are among the main subjects of our current research activity. This is just the first step in our rational approach to the preparation of nuclearity controlled polynuclear compounds with novel magnetic properties. Their use as ligands towards either fully hydrated metal ions or coordinatively unsaturated preformed species affords a wide variety of low-dimensional metal assemblies whose nuclearity, dimensionality and magnetic properties can be tuned. Among the different new spin topologies obtained through this rational synthetic strategy, ferromagnetically coupled 4,2-ribbon like bimetallic chains which exhibit slow magnetic relaxation and hysteresis effects (single and double chains as magnets) are one of the most appealing ones. Some selected example of these new magnetic materials will be highlighted.
Laatst gewijzigd:22 oktober 2012 14:30