title: Solvent dependent conformational isomerism and ligand oxidation of novel Ru(II) cyclen complexes.
abstract: The synthesis of cis-[Ru(II)(cyclen)(L)(x)](n+) (cyclen = 1,4,7,10-tetraazacyclododecane and L = 2,2'-bipyridine (bpy), phenanthroline (phen) or 4-cyanopyridinium (4-NCpyH(+))) is reported. The freshly prepared complexes are stable in aprotic solvents and cyclen undergoes oxidative dehydrogenation reaction at high pH. These compounds also present solvent dependent conformational isomerization.
authors.affiliation: Departamento de Química da Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Brazil.
authors.forename: Kleber Q
authors.initials: KQ
authors.lastname: Ferreira
authors.forename: Luciana N
authors.initials: LN
authors.lastname: Cardoso
authors.forename: Sofia
authors.initials: S
authors.lastname: Nikolaou
authors.forename: Zênis N
authors.initials: ZN
authors.lastname: da Rocha
authors.forename: Roberto S
authors.initials: RS
authors.lastname: da Silva
authors.forename: Elia
authors.initials: E
authors.lastname: Tfouni