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Valence Bond Theory

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Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...

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Related Experiment Video

Updated: Oct 3, 2025

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

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Terpyridine-Based 3D Discrete Metallosupramolecular Architectures.

Xiujun Yu¹, Chenxing Guo¹, Shuai Lu¹

¹College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China.

Macromolecular Rapid Communications

|February 15, 2022

Summary

Researchers are creating complex 3D metallosupramolecular architectures using terpyridine ligands. Despite synthetic challenges, diverse polyhedral structures are now achievable, opening avenues for new applications in chemistry.

Keywords:

3D discrete supramolecules coordination-driven self-assembly polyhedrons supramolecular nanocages terpyridine

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Last Updated: Oct 3, 2025

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Area of Science:

Metallosupramolecular Chemistry
Coordination Chemistry
Materials Science

Background:

Terpyridine (tpy)-based metallosupramolecular architectures are inspired by polyhedral geometry and natural biological structures.
The linear tpy-M(II)-tpy connectivity presents a significant synthetic challenge for creating complex 3D structures.
Despite challenges, advancements in ligand design and self-assembly have enabled the construction of diverse 3D metallosupramolecular polyhedrons.

Purpose of the Study:

To review the progress in the design and synthesis of terpyridine-based discrete 3D metallosupramolecular architectures.
To highlight the potential applications of these sophisticated molecular structures.
To provide insights into the construction of novel architectures with molecular-level precision.

Main Methods:

Coordination-driven self-assembly.
Advanced ligand design strategies.
Exploration of polyhedral geometries (Platonic, Archimedean, Johnson solids).

Main Results:

Successful construction of diverse 3D metallosupramolecular polyhedrons using terpyridine ligands.
Demonstration of various geometric structures, including Platonic and Archimedean solids.
Exploration of potential applications for these novel architectures.

Conclusions:

Terpyridine-based 3D metallosupramolecular architectures are advancing rapidly.
Ligand design and self-assembly are key to overcoming synthetic challenges.
These structures hold promise for future applications in various scientific fields.