A chiral, low-cytotoxic [Ni15]-wheel complex.

Area of Science:

• Coordination Chemistry
• Materials Science
• Biophysical Chemistry

Background:

• Schiff-base ligands are versatile in coordination chemistry.
• Chiral metal complexes have applications in catalysis and medicine.
• Nickel complexes exhibit diverse magnetic and electronic properties.

Purpose of the Study:

• To synthesize and characterize a novel chiral [Ni15] complex.
• To investigate the complex's solution behavior and structural properties.
• To evaluate the complex's magnetic properties and biological interactions.

Main Methods:

• Synthesis of a Schiff-base ligand from o-vanillin and L-glutamic acid.
• Formation of the chiral [Ni15] complex.
• Atomic Force Microscopy (AFM) and Dynamic Light Scattering (DLS) for solution studies.
• Magnetic susceptibility measurements.
• Cytotoxicity assays on two cell lines.

Main Results:

• A new chiral [Ni15] complex was successfully synthesized.
• AFM and DLS confirmed the formation of complex molecules in solution.
• The complex exhibited weak antiferromagnetism with excited state admixtures.
• Negligibly interacting [Ni3] units were observed within the complex.
• Low cytotoxicity was observed upon interaction with two cell lines.

Conclusions:

• The synthesized chiral [Ni15] complex possesses unique structural and magnetic properties.
• The complex's formation in solution is confirmed, relevant for materials science.
• Low cytotoxicity suggests potential for biological and biomedical applications.