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The molecular superconductor TTF[Ni(dmit) 2 ] 2 is part of the scientific heritage of the Laboratoire de Chimie de Coordination (LCC). Research into molecular materials using transition metal complexes as building blocks was introduced at the LCC by Patrick Cassoux in 1979. The “Molecules and Materials” team isolated the first molecular superconductor containing a transition metal complex, TTF[Ni(dmit) 2 ] 2 , the metallic behavior of which was demonstrated at ambient pressure and its superconductivity under pressure. This compound was first prepared and studied as single crystals, and processed further to obtain thin films and nanoparticles. In this review, we describe the synthetic procedures used for growing TTF[Ni(dmit) 2 ] 2 as single crystals, nanowires, thin films, and nanoparticles, as well as the physical properties of each morphological type and the potential integration of nanoparticles into electronic components. [ABSTRACT FROM AUTHOR]

Abstract: The preparation of a new bis(2-pyridylethylsulfanyl)-1,3-dithiole-2-one (1) and the first example of a tetra-azo substituted bisdithiolene transition metal complex, Ni(dpesdt)2 (2) are reported. This complex crystallizes in two polymorphs, one is triclinic, and the other is monoclinic, P21/n space group. [Copyright &y& Elsevier]

Abstract: Three new compounds of formula (1), (2), and (3) have been synthesised, and structurally and magnetically characterised (dmit2− =1,3-dithiol-2-thione-4,5-dithiolato; dmid2− =1,3-dithiol-2-one-4,5-dithiolato). Their structural features and magnetic behaviours are compared with those of and . The result of this is that the interactions between the Ni(dmit)2 units in 1 are of ferromagnetic-type, as suggested previously for . The change from acetonitrile to acetone when going from to 2 results in stronger ferromagnetic intermolecular interactions. This better cooperativity is due to a significant increase of the number of contacts between the various moieties within the . On the contrary, the inclusion of larger solvents such as benzonitrile in this type of complexes results in a totally different structural arrangement, which leads to an antiferromagnetic behaviour for 3. [Copyright &y& Elsevier]