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Published on: December 29, 2016
Bis(imino)carbazolate lead(II) fluoride and related halides
Peter M Chapple1, Ghanem Hamdoun2, Thierry Roisnel1
1Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes F-35000, France. yann.sarazin@univ-rennes1.fr.
A bulky bis(imino)carbazolate ligand enables the synthesis of diverse lead(ii) complexes, including fluoride, halides, amide, and hydrocarbyl compounds. Structural authentication and lead-207 NMR data confirm the versatility of this ligand in lead chemistry.
Area of Science:
- Organometallic Chemistry
- Inorganic Chemistry
- Coordination Chemistry
Background:
- Lead(II) compounds exhibit diverse coordination behaviors.
- Bis(imino)carbazolate ligands offer unique steric and electronic properties.
- Exploring new ligand systems is crucial for developing novel lead-based materials.
Purpose of the Study:
- To investigate the synthetic utility of a bulky bis(imino)carbazolate ligand in lead(II) chemistry.
- To synthesize and characterize a series of novel heteroleptic lead(II) complexes.
- To explore the structural diversity and spectroscopic properties of these new lead(II) compounds.
Main Methods:
- Synthesis of lead(II) complexes using a bulky bis(imino)carbazolate ligand.
- Characterization by single-crystal X-ray diffraction.
- Spectroscopic analysis including 207Pb NMR.
Main Results:
- Successful synthesis of a soluble, heteroleptic lead(II) fluoride complex.
- Synthesis of various halide (Cl, Br, I), amide, and hydrocarbyl lead(II) congeners.
- Full structural authentication of all synthesized complexes.
- Comprehensive 207Pb NMR data provided and discussed.
Conclusions:
- The bulky bis(imino)carbazolate ligand demonstrates significant versatility in lead(II) coordination chemistry.
- This ligand facilitates the formation of diverse lead(II) complexes with varying anionic ligands.
- The structural and spectroscopic data provide valuable insights into the coordination behavior of lead(II) with this ligand system.
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