Palladium dimethylsilanedithiolato complex: a precursor for Ti-Pd and Ti-Pd2 heterometallic complexes

Area of Science:

• Organometallic Chemistry
• Inorganic Chemistry
• Materials Science

Background:

• Silanedithiolato complexes offer unique reactivity.
• Titanium halides are versatile precursors in cluster synthesis.
• Heterometallic clusters are of interest for catalysis and materials.

Purpose of the Study:

• To investigate the reaction of a palladium silanedithiolato complex with titanium precursors.
• To synthesize and characterize novel heterometallic clusters.
• To explore silicon-sulfur bond cleavage in these reactions.

Main Methods:

• Reaction of Pd(S2SiMe2)(PEt3)2 with (C5H5)TiCl3.
• Reaction of Pd(S2SiMe2)(PEt3)2 with TiCl4(thf)2.
• Characterization of the resulting heterometallic clusters.

Main Results:

• Formation of heterometallic clusters (C5H5)TiCl(mu-S)2Pd(PEt3)2 and TiCl2(S)(mu-S)2Pd2(PEt3)4.
• Observation of silicon-sulfur bond cleavage during the reactions.
• Identification of distinct cluster structures based on titanium precursors.

Conclusions:

• The palladium silanedithiolato complex can be used to synthesize diverse titanium-containing heterometallic clusters.
• Reaction conditions influence the resulting cluster structure and the extent of silicon-sulfur bond cleavage.
• These findings expand the scope of heterometallic cluster synthesis and reactivity.