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Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2021/2022 The term cluster was introduced in 1964 by F. A. Cotton to designate a finite group of metal atoms which are held together primarily, or at least to a significant extent, by direct bonds between metal atoms.1 Nowadays, polynuclear transition metal clusters constitute a broad class of coordination compounds with applications in different fields such as molecular electronics, magnetism, luminescence, non-linear optics and catalysis. Transition metal clusters can be classified according to the electronic nature of the metal into electronically rich and electronically poor. The former are constituted by transition metals located at the right side of the periodic table in low oxidation states and are bound to acceptor ligands such as carbonyls (CO), nitric oxide (NO), hydrides (H-), phosphines (PR3) and cyclopentadienyl (Cp). The most representative family of electronically rich complex clusters are the carbonyl ones [...] |
