Work

Synthesis and Structure of a Metal‐Rich Tetradecagallium Cluster with a Polyhedral Core

Year: 2025

Type: article

Abstract: Ga14(hypersilyl)6 [hypersilyl = Si(SiMe3)3] is a novel metal‐rich and polyhedral cluster compound with an unprecedented structure in gallium chemistry. The gallium atoms form an omnicapped cube, meaning six gallium hypersilyl units are capping the faces of a Ga8 cube. The synthesis of the cluster is performed using a new reagent, a solution of subvalent gallium trifluoromethanesulfonate, which is easily obtained by oxidation of gallium with silver trifluoromethanesulfonate in toluene. After the addition of an excess of lithium hypersilanide and warming up the reaction mixture, [Ga14(hyp)6] is isolated by crystallization from n‐hexane and structurally characterized by single crystal X‐ray crystallography. density functional theory calculations confirmed structural variations of the core structure of Ga14R6 depending on numbers of cluster electrons and types of substituents.

Source: European Journal of Inorganic Chemistry

DOI: 10.1002/ejic.202400725

Authors: Tobias Saxl, Dominik Scheid, Gerald Linti

Institution: Heidelberg University

Language: English

Topic: Synthesis and characterization of novel inorganic/organometallic compounds

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,050

Funder: Deutsche Forschungsgemeinschaft