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Updated: Jun 30, 2026
10:42
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Solid- and solution phase transformations in novel hybrid iodoplumbate derivatives templated by solvated yttrium
Shashank Mishra1, Erwann Jeanneau, Stéphane Daniele
1IRCELYON, Universite Lyon 1, 2 Avenue A. Einstein, 69626 Villeurbanne, France. mishrashashank74@rediffmail.com
Inorganic Chemistry
|September 24, 2008
Summary
This study synthesizes novel yttrium-iodoplumbate hybrid materials with unique 1D structures. These compounds exhibit tunable optical properties and luminescence, showing potential for semiconductor applications.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Solid-State Chemistry
Background:
- Yttrium iodide precursors are crucial for synthesizing novel hybrid materials.
- Understanding the structural diversity and properties of metal-iodide complexes is essential for developing new functional materials.
Purpose of the Study:
- To synthesize and characterize novel hybrid yttrium-iodoplumbate derivatives.
- To investigate the structural transformations and thermal stability of these compounds.
- To explore their optical and luminescent properties for potential applications.
Main Methods:
- In situ synthesis of solvated yttrium iodide precursors.
- Reaction with lead iodide and ammonium iodide to form hybrid derivatives.
- Solution and solid-state transformations under varying conditions.
- Thermogravimetry-differential thermal analysis (TG-DTA) for thermal stability.
- Diffuse-reflectance UV-visible spectroscopy for optical band gap determination.
- Luminescence spectroscopy for emission properties.
Main Results:
- Novel 1D straight-chain and discrete pentanuclear iodoplumbate structures were synthesized.
- Solution and solid-state transformations led to different polymeric chain architectures (straight vs. zigzag).
- Hydrogen bonding plays a key role in structural modifications.
- Thermal stability varies with ligands, with DMF-H2O complexes being the most stable.
- Compounds exhibit optical band gaps in the semiconductor range (1.86–2.54 eV).
- Derivatives 1, 2a, and 2b show remarkable luminescence at 703 nm.
Conclusions:
- New yttrium-iodoplumbate hybrids with diverse structures were successfully synthesized.
- Structural transformations can be controlled via solution and solid-state pathways.
- The materials possess tunable optical and promising luminescent properties.
- These hybrid materials are potential candidates for semiconductor and optoelectronic applications.
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