2-Pyridylmetallocenes, Part IX. Sulphur-Substituted 2-Pyridylferrocene: Synthesis and Reactivity towards Pt(II) and...

Area of Science:

• Organometallic Chemistry
• Coordination Chemistry
• Materials Science

Background:

• Ferrocene derivatives are versatile building blocks in organometallic chemistry.
• Pyridylferrocenes offer unique coordination properties due to the presence of both ferrocene and pyridine moieties.
• Thio-substitution introduces additional coordination sites and influences electronic properties.

Purpose of the Study:

• To synthesize novel thio-substituted 2-pyridylferrocenes.
• To explore the reactivity of these compounds with platinum and mercury electrophiles.
• To characterize the resulting multinuclear complexes and investigate their structural features.

Main Methods:

• Synthesis of thio-substituted 2-pyridylferrocenes.
• Reactions with platinum dichloride and mercury(II) acetate.
• Single-crystal X-ray diffraction for structural determination.

Main Results:

• Successful preparation of thio-substituted 2-pyridylferrocenes.
• Formation of binuclear N, S chelated platinum complexes.
• Cyclomercuration of a thio-substituted pyridylferrocene yielding a tetrameric mercury-sulfur structure.
• Identification of weak intramolecular Fe…Pt interaction in one complex.
• Observation of intermolecular interactions involving chlorine and mercury-sulfur moieties.

Conclusions:

• Thio-substituted 2-pyridylferrocenes serve as effective ligands for constructing multinuclear organometallic complexes.
• The coordination behavior depends on the metal electrophile and the nature of the thio-substituent.
• Structural studies reveal interesting intermolecular interactions and unique supramolecular assemblies.