Santiago Uriel

Mesomorphism of a tetrahedral zinc complex

Thermotropic smectic phases have been observed for the first time in a zinc coordination complex with tetrahedral geometry; this complex, which contains the pyrazole dimer bis[3,5-bis(p-decyloxyphenyl)pyrazolyl]ethane as the ligand, exhibits fluorescence.

The synthesis of primary, secondary and tertiary aminomethyltetrathiafulvalenes

Abstract The title compounds have been prepared in one or two steps, either formyltetrathiafulvalene or tetrathiafulvalenyllithium as starting materials.

The first aminomethyl TTF derivatives: new donors for synthetic metals

Abstract The reaction of Tetrahiafulvalenyllithium with Eschenmosers salts is reported for the first time. It allows the synthesis of the title compounds in one step.

Generation of radicals and formation of conducting materials by protic doping of tetrahiafulvalenes

Abstract Conducting materials have been obtained by protonation of TTFs. 1 H NMR and ESR spectroscopies indicate that radicals are at the origin of the observed conductivity.

On the reaction of anthranilic acid with thionyl chloride : the actual structure of Kametani's sulfinamide anhydride

Abstract Despite previous reports, no sulfinamide anhydride is formed from the reaction of anthranilic acid with thionyl chloride, the actual product being 2-sulfinylaminobenzoyl chloride. this excludes iminoketene formation in the reactions of this activated form of anthranilic acid.

Synthesis and study of aminomethyltetrathiafulvalene derivatives and their charge-transfer complexes

Abstract The synthesis of tertiary aminomethyltetrathiafulvalenes is reported. These new donors have been prepared in one step using tetrathiafulvalene as starting material,, and they have been characterized spectroscopically and electrochemically. Some of their charge-transfer complexes have been synthesized and studied. Conductivity, degree of charge-transfer and spectroscopic data are reported. The variation of their EPR parameters with temperature is also discussed.

Structural optimization of giant analogues of TTF: towards improvement of the solid-state properties in the related, materials

Abstract 2,3- bis (1,4- dithiafulven-6-yl) TTF or TSF I and III, or their vinylogues II are synthesized. As expected, thanks to their space extension and S- rich character, they behave as good π-donors to reach cation radical salts of inhanced dimensionality.