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The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
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Hexanuclear tin(ii) and mixed valence tin(ii,iv) oxide clusters within polyoxometalates.
Kosuke Suzuki1, Takumi Hanaya1, Rinta Sato1
1Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. tmizuno@mail.ecc.u-tokyo.ac.jp.
Chemical Communications (Cambridge, England)
|August 11, 2016
Summary
Researchers synthesized a novel hexanuclear mixed valence tin oxide cluster. This new tin oxide cluster was formed through selective oxidation, highlighting the role of stereochemically active lone pairs on tin species.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Coordination Chemistry
Background:
- Polyoxometalates (POMs) are versatile inorganic clusters with tunable properties.
- Tin oxide clusters offer unique electronic and structural characteristics.
- Mixed valence compounds exhibit interesting redox and magnetic properties.
Purpose of the Study:
- To synthesize a novel hexanuclear mixed valence tin oxide cluster.
- To investigate the selective oxidation of tin oxide clusters within POM frameworks.
- To understand the role of stereochemically active lone pairs in tin species.
Main Methods:
- Solution-state synthesis techniques.
- Selective oxidation of pre-existing tin oxide clusters.
- Characterization using spectroscopic and crystallographic methods (implied).
Main Results:
- Successful synthesis of a hexanuclear mixed valence tin oxide cluster, [Sn3(2+)Sn3(4+)O15](12-).
- Demonstration of selective oxidation of a [Sn6(2+)O12](12-) precursor within trivacant lacunary polyoxometalates.
- Observation of lone pairs on Sn(2+) species acting as stereochemically active sites.
Conclusions:
- The study presents a new pathway for creating mixed valence tin oxide clusters.
- The findings emphasize the importance of lone pair stereochemistry in tin oxide cluster chemistry.
- This work expands the library of accessible polyoxometalate-supported inorganic clusters.
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