Multi-electron reduction of sulfur and carbon disulfide using binuclear uranium(iii) borohydride complexes.

ABSTRACT: The first use of a dinuclear U^III/U^III complex in the activation of small molecules is reported. The octadentate Schiff-base pyrrole, anthracene-hinged 'Pacman' ligand L^A combines two strongly reducing U^III centres and three borohydride ligands in [M(THF)₄][{U(BH₄)}₂(μ-BH₄)(L^A)(THF)₂] 1-M, (M = Li, Na, K). The two borohydride ligands bound to uranium outside the macrocyclic cleft are readily substituted by aryloxide ligands, resulting in a single, weakly-bound, encapsulated endo group 1 metal borohydride bridging the two U^III centres in [{U(OAr)}₂(μ-MBH₄)(L^A)(THF)₂] 2-M (OAr = OC₆H₂

SUBMITTER: Arnold PL 

PROVIDER: S-EPMC6094157 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature