Poly[bis(μ-purin-9-ido-κ(2)N(7):N(9))zinc]

Area of Science:

• Coordination Chemistry
• Materials Science
• Crystallography

Background:

• Metal-organic frameworks (MOFs) and coordination polymers are crucial in materials science.
• Purine derivatives offer versatile coordination sites for metal ions.
• Understanding the self-assembly of metal-organic complexes is key to designing new materials.

Purpose of the Study:

• To synthesize and characterize a novel coordination compound involving zinc and purinate.
• To elucidate the coordination environment and network structure of the resulting complex.
• To explore the potential of purinate ligands in constructing extended solid-state architectures.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Elemental analysis confirmed the stoichiometry of the synthesized compound.
• Infrared spectroscopy was used to identify key functional groups and coordination modes.

Main Results:

• The title compound, [Zn(C(5)H(3)N(4))(2)], was successfully synthesized and characterized.
• The zinc(II) cation adopts a nearly tetrahedral coordination geometry.
• Each purinate ligand bridges two zinc centers via imidazole nitrogen atoms, forming a 3D network.

Conclusions:

• The purinate ligand effectively mediates the formation of a robust three-dimensional coordination network with zinc.
• The tetrahedral coordination of zinc is a key feature driving the network topology.
• This study demonstrates the utility of purinate anions in constructing complex metal-organic architectures.