Poly[bis-(μ(2)-pyrimidine-2-carboxyl-ato-κO,N:O',N')calcium]

Area of Science:

• Coordination Chemistry
• Crystal Engineering
• Materials Science

Background:

• Pyrimidine derivatives are versatile ligands in coordination chemistry.
• Calcium complexes exhibit diverse structural motifs and potential applications.

Purpose of the Study:

• To elucidate the crystal structure of a novel calcium-pyrimidine polymeric complex.
• To investigate the coordination environment and intermolecular interactions within the complex.

Main Methods:

• Single-crystal X-ray diffraction analysis.
• Crystallographic symmetry analysis.
• Analysis of coordination geometry and intermolecular forces.

Main Results:

• The crystal structure of [Ca(C(5)H(3)N(2)O(2))(2)](n) was determined.
• Ca(II) cations are N,O-chelated by pyrimidine-2-carboxylate anions in a square-antiprismatic geometry.
• Polymeric sheets are formed via bridging ligands, with observed π-π stacking and C-H⋯O hydrogen bonding.

Conclusions:

• The study provides detailed structural insights into a calcium-pyrimidine coordination polymer.
• The observed structural features, including π-π stacking, are crucial for the overall network stability.
• This work contributes to the understanding of crystal engineering principles for designing novel coordination materials.