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Updated: Jun 4, 2025
08:25
Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
Published on: July 3, 2015
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Extended chains in vanadium O-centered complex [V4OSe8I5]∞: synthesis and structure.
R R Galiev1, V Y Komarov1, M R Ryzhikov1
1Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Akad. Lavrentiev Ave., Novosibirsk 630090, Russia. artem@niic.nsc.ru.
Dalton Transactions (Cambridge, England : 2003)
|December 20, 2024
Summary
A novel chain-like vanadium selenoiodide, [V4OSe8I5]∞, was synthesized and characterized. This material exhibits narrow-gap semiconductor properties, confirmed by DFT calculations and electrical resistance measurements.
Area of Science:
- Solid-state chemistry and materials science.
- Coordination chemistry and inorganic synthesis.
Background:
- Vanadium-oxygen-chalcogenide halides are an intriguing class of materials with diverse structural motifs and potential applications.
- Understanding the relationship between structure and electronic properties is crucial for designing new functional materials.
Purpose of the Study:
- To synthesize and characterize a novel O-centered tetranuclear vanadium selenoiodide chain compound.
- To investigate the structural and electronic properties of the synthesized material.
- To explore the transformation pathways between molecular clusters and extended chain structures.
Main Methods:
- Synthesis via an ampoule method using elemental precursors and water.
- X-ray single-crystal structure determination.
- Density Functional Theory (DFT) calculations.
- Electrical resistance measurements.
Main Results:
- Successful synthesis of the chain compound [V4OSe8I5]∞.
- Determination of its crystal structure, revealing chains built from O-centered tetranuclear vanadium fragments bridged by iodide ligands.
- Observation of a direct 'cluster to chain' transformation.
- Identification of the compound as a narrow-gap semiconductor, consistent with DFT predictions.
Conclusions:
- The study reports a new vanadium-based chain compound with a unique structural architecture.
- The synthesized material exhibits semiconductor behavior, highlighting its potential for electronic applications.
- The observed cluster-to-chain transformation provides insights into the reactivity and phase behavior of these vanadium complexes.
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