Metallocages for Metal Anions: Highly Charged [Co@Ge₉ ]^5- and [Ru@Sn₉ ]^6- Clusters Featuring Spherically Encapsulated Co^1- and Ru^2- Anions.

ABSTRACT: Endohedral clusters count as molecular models for intermetallic compounds-a class of compounds in which bonding principles are scarcely understood. Herein we report soluble cluster anions with the highest charges on a single cluster to date. The clusters reflect the close analogy between intermetalloid clusters and corresponding coordination polyhedra in intermetallic compounds. We now establish Raman spectroscopy as a reliable probe to assign for the first time the presence of discrete, endohedrally filled clusters in intermetallic phases. The ternary precursor alloys with nominal compositions "K₅ Co_1.2 Ge₉ " and "K₄ Ru₃ Sn₇ " exhibit characteristic bonding modes originating from metal atoms in the center of polyhedral clus

SUBMITTER: Witzel BJL 

PROVIDER: S-EPMC6771791 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature