Stepwise and chemically reversible reduction of (μ-bmtz)MCl(η6-cym)2PF62 (M = Ru, Os; bmtz = 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine) with up to six electrons

, , und . Zeitschrift fuer Anorganische und Allgemeine Chemie 627 (7): 1441--1453 (2001)


The title compds. were synthesized and characterized spectroscopically. Anal. of cyclic voltammetry in conjunction with spectroelectrochem. (UV/visible/NIR, ESR) allowed the authors to identify the products of sequential, chem. reversible redn. with up to six electrons. It is the first time that the mol. coupling of electron transfer steps (E) and bond breaking/bond forming chem. processes (C) was studied for a diruthenium system. In that case, the chem. reversible sequence E, EC, EEC, E and E was obsd. whereas the diosmium analog showed the unusual sequence E, EC, E, EEC and E. on SciFinder(R)

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