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Atomically Precise Expansion of Unsaturated Silicon Clusters.

ABSTRACT: Small- to medium-sized clusters occur in various areas of chemistry, for example, as active species of heterogeneous catalysis or as transient intermediates during chemical vapor deposition. The manipulation of stable representatives is mostly limited to the stabilizing ligand periphery, virtually excluding the systematic variation of the property-determining cluster scaffold. We now report the deliberate expansion of a stable unsaturated silicon cluster from six to seven and finally eight vertices. The consecutive application of lithium/naphthalene as the reducing agent and decamethylsilicocene as the electrophilic source of silicon results in the expansion of the core by precisely one atom with the potential of infinite repetition.

SUBMITTER: Leszczynska KI

PROVIDER: S-EPMC6563707 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Atomically Precise Expansion of Unsaturated Silicon Clusters.

Leszczyńska Kinga I KI Huch Volker V Präsang Carsten C Schwabedissen Jan J Berger Raphael J F RJF Scheschkewitz David D

Angewandte Chemie (International ed. in English) 20190308 15

Small- to medium-sized clusters occur in various areas of chemistry, for example, as active species of heterogeneous catalysis or as transient intermediates during chemical vapor deposition. The manipulation of stable representatives is mostly limited to the stabilizing ligand periphery, virtually excluding the systematic variation of the property-determining cluster scaffold. We now report the deliberate expansion of a stable unsaturated silicon cluster from six to seven and finally eight verti ...[more]

PMID: 30633856

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