It presents the synthesis, spectroscopic (including X-ray for 2a and 4a) and optical properties of a sequence of binuclear complexes [{Pt(pq)(C ⁇ CtBu)}2{μ-(N-N)}] (1a-5a), ditopic dinitrogen connector ligands (N-N) and trinuclear ligands [{Pt(pq)(C ⁇ CtBu)}3(μ-L)] (6a) with a central core of 1,3,5-tris(pyridine-4ylethynyl)benzene. Particular attention in this chapter is devoted to the peculiar behaviour of complex binuclear complexes [{Pt(pq)(C ⁇ CtBu)}2{μ-4,4′-bpy)}] (2a). Complexes 1a-5a thus create a rapid dynamic equilibrium upon solution with the starting material of the alkynyl bridge [Pt(pq)(μ-C ⁇ CtBu)]2 (Pt-1), the corresponding mononuclear complex with the terminal ligand of N-donor [Pt(pq)(C ⁇ CtBu)(N-N)] (1b-5b) and the free ligand (N-N). In addition , the effects of the equilibrium concentration , temperature and solvent properties and their optical properties (absorption and emission) are discussed, assisted also by theoretical calculations of 2a.
Author(s) Details
M. Teresa Moreno
Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
Santiago Ruiz
Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
Sergio Sánchez
Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
Elena Lalinde
Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
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