Metal bis-dichalcogenate complexes for conducting and magnetic materials

Lines connect the coordinator with its partners.

Project objective

Research objectives and content In this research project the use of different metal bis-dichalcogenate complexes, as building blocks to obtain materials with unconventional electric and magnetic properties, will be explored. As far as possible, selected similar complexes, diamagnetic and paramagnetic (e.g. Au(III)-Pt(III) or Cu(III)-Ni(III) ) will be chosen in order to put into evidence the role of the paramagnetic centres and their possible interplay with conduction electrons. In a first step the above mentioned complexes will be synthesised. This requires the development and optimisation of synthetic procedures particularly for the Se analogues and its basic characterisation. Special attention will be paid to the redox behaviour, studied by cyclic voltammetry, and the magnetic properties, that will be measured by EPR spectroscopy and magnetic susceptibility determinations. In a second step the complexes prepared will be combined with known organic donors selected according to their redox properties, such as TMTSF, BEDT-TTF, Perylene, TTF, etc., in order to obtain charge transfer solids, as single crystals, using either electrocrystallisation or diffusion techniques. The single crystals will be characterised by x-ray diffraction, electrical conductivity and magnetic susceptibility measurements. Training content (objective, benefit and expected impact) This project will allow an advanced research training in a broad range of modern techniques for the characterisation of molecular materials, in a group with large experience in the chemistry of this type of complexes and with a broad range of complementary chemical and solid state physical characterisation techniques. A careful selection of appropriated systems with these type of metal complexes is expected lead to new materials with unconventional electrical and magnetic properties and its study can provide illuminating conclusions on the structure properties relationships and can put in evidence the role of the localised magnetic moments and its interaction with delocalised conduction electrons in molecular solids. Links with industry / industrial relevance (22) Not relevant

Original text from CORDIS.

Participants

• INSTITUTO TECNOLOGICO E NUCLEAR · SACAVEMCoordinatorPortugal

Links

• View on CORDIS