Clathrochelate Complexes Containing Axial Cymantrene and Tromancenium Moieties

Area of Science:

• Inorganic Chemistry
• Organometallic Chemistry
• Materials Science

Background:

• Clathrochelate complexes offer unique structural and electronic properties.
• Organometallic moieties like cymantrene and tromancenium can impart novel functionalities.
• The synthesis of multi-metal complexes with specific magnetic and electrochemical properties is an active research area.

Purpose of the Study:

• To synthesize novel clathrochelate complexes incorporating organometallic manganese moieties.
• To investigate the structural, magnetic, and electrochemical properties of these new complexes.
• To evaluate the potential anticancer activity of the synthesized tetrametallic complexes.

Main Methods:

• Self-assembly synthesis using di/tri-topic dioximes, metal templates, and cymantrene/tromancenium boronic acid pinacol esters.
• Comprehensive characterization including NMR (1H, 11B, 13C), HRMS, IR, UV-vis spectroscopy, single crystal X-ray diffraction (XRD), and cyclic voltammetry (CV).
• In vitro anticancer activity screening against various tumor cell lines.

Main Results:

• Successful synthesis of air-stable, highly colored oligometallic clathrochelate complexes.
• Characterization confirmed diverse metal assemblies such as MnIFeIIMnI, MnICoIIMnI, MnIMnIIMnIIMnI, and MnICoIICoIIMnI.
• Tetrametallic complexes with tromanceniumyl substituents demonstrated significant anticancer properties.

Conclusions:

• Novel organometallic clathrochelate complexes with tunable magnetic and electrochemical properties were developed.
• The synthesized complexes represent a new class of multi-metal systems with potential applications in materials science.
• The promising anticancer activity highlights their therapeutic potential, warranting further investigation.