Ordered assembly of two different metal clusters with the same topological connectivity in one single coordination...

Area of Science:

• Materials Science
• Chemistry
• Nanotechnology

Background:

• Multifunctional coordination networks are created by incorporating diverse components.
• Precise control over the local distribution of these components, especially those with similar topological connectivity, remains a challenge.

Purpose of the Study:

• To achieve the ordered assembly of [Mn3(μ3-O)] and [Mn6(μ3-O)2(CH3COO)3] nodes within a single coordination network.
• To develop a method for controlling the distribution of heterogeneous metal nodes in coordination networks.

Main Methods:

• Synthesized a novel coordination network (NPU-6) incorporating two distinct manganese-based nodes.
• Conducted control experiments to investigate the influence of reaction conditions, specifically the concentration of the competing ligand CH3COO-, on the assembly process.

Main Results:

• Successfully achieved ordered assembly of [Mn3(μ3-O)] and [Mn6(μ3-O)2(CH3COO)3] nodes in the NPU-6 structure.
• The NPU-6 material exhibits enhanced properties, inheriting good thermal stability and high pore volume from its parent networks.
• Demonstrated the significant impact of competing ligand concentration on the selective assembly of heterogeneous nodes.

Conclusions:

• The study presents a successful strategy for the ordered assembly of heterogeneous metal nodes in coordination networks.
• The developed method provides a valuable reference for constructing multifunctional coordination materials with controlled component distribution.
• The NPU-6 material showcases the potential for combining desirable properties from different network components.