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The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
Templated Synthesis of Heterobimetallic Nd─Co Clusters
Hong-Lei Xu1, Devesh Awasthi1, Don Danilov1
1Department of Chemistry, Rice University, Houston, Texas, USA.
Angewandte Chemie (International Ed. in English)
|August 11, 2026
Summary
This study introduces novel heterobimetallic neodymium-cobalt clusters, showcasing a significantly shortened Nd-Co bond upon dioxygen activation. These findings advance the synthesis and understanding of f- and d-block metal clusters for catalysis.
Area of Science:
- Inorganic Chemistry
- Organometallic Chemistry
- Materials Science
Background:
- Heterometallic clusters, especially those involving f- and d-block metals, are challenging to synthesize.
- Understanding metal-metal interactions in these clusters is crucial for catalysis and small-molecule activation.
Purpose of the Study:
- To design and synthesize novel heterobimetallic neodymium-cobalt (Nd-Co) clusters.
- To investigate the metal-metal interactions and dioxygen activation capabilities of these clusters.
Main Methods:
- Synthesis of a Nd-containing precursor (LH5Nd).
- Metalation with a cobalt source (Co2(HMDS)4) to form the Nd-Co cluster (LH3NdCo2(HMDS)2).
- Reaction with dioxygen to form the oxidized species (LH3)2Nd2Co2(µ4-O) and characterization using X-ray photoelectron spectroscopy and structural analysis.
Main Results:
- A new Nd-Co heterobimetallic cluster was synthesized with a Nd-Co distance of 3.276(12) Å.
- Upon dioxygen exposure, a dimeric species with a significantly shorter Nd-Co distance of 2.993(6) Å was formed.
- Spectroscopic and structural data indicate the oxidized species is best described as [NdIII2CoIII2] with high-spin Co(III) centers.
Conclusions:
- Successful design and synthesis of well-defined heterobimetallic Nd-Co clusters.
- Demonstrated metal-metal interaction synergy in activating dioxygen.
- Provides a foundation for developing new catalysts based on f- and d-block heterometallic systems.
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