Novel heterobimetallic thiocarboxylato complexes: synthesis, characterization and application as single source...

Area of Science:

• Inorganic Chemistry
• Materials Science
• Coordination Chemistry

Background:

• Heterobimetallic complexes offer unique properties due to the combination of different metal centers.
• Understanding the structure-property relationships in these complexes is crucial for designing new materials.

Purpose of the Study:

• To synthesize and characterize novel heterobimetallic complexes containing copper (Cu) and silver (Ag) with lead (Pb).
• To investigate the electronic, luminescence, and redox properties of the synthesized complexes.
• To explore the thermal decomposition products of these complexes.

Main Methods:

• Synthesis and characterization using FTIR, NMR (1H, 13C, 31P) spectroscopy.
• Determination of solid-state molecular structures via single crystal X-ray diffraction.
• Analysis of electronic spectra using TDDFT calculations.
• Study of luminescence and redox properties.
• Thermogravimetric analysis (TGA) and pyrolysis.
• Characterization of decomposition products using SEM-EDX and X-ray diffraction.

Main Results:

• Successful synthesis and characterization of two heterobimetallic complexes: (PPh3)2Cu(μ-SCOPh)2Pb(SCOPh) and (PPh3)2Ag(μ-SCOPh)2Pb(SCOPh).
• Detailed structural, electronic, luminescence, and redox properties were elucidated.
• A lead-copper oxide (Pb4Cu5O22.6) was identified as a thermal decomposition product.

Conclusions:

• The synthesized heterobimetallic complexes display tunable electronic and photophysical properties.
• The study provides insights into the structural diversity and reactivity of metal-organic frameworks.
• The identified decomposition product suggests potential pathways for materials synthesis via pyrolysis.