High-Yield\nSynthesis Route, Post-Synthesis Treatment,\nand Insights into the Photoluminescence and Magnetic Properties of\nTricopper(I) Melaminate Cu<sub>3</sub>(C<sub>3</sub>N<sub>6</sub>H<sub>3</sub>

A novel and more efficient synthesis of Cu<sub>3</sub>(C<sub>3</sub>N<sub>6</sub>H<sub>3</sub>) is presented through a\nsalt-metathesis\nreaction using copper(I) chloride and sodium hydrogen cyanamide. This\nsynthesis yields a melaminate trianion through the cyclotrimerization\nof (HNCN)<sup>−</sup> ions, offering an alternative route to\nthe deprotonation of melamine for synthesizing melaminate. The reaction\nis analyzed via differential thermal analysis. After the unconventional\nformation of this MOF-like structure by solid-state reaction, this\nmaterial still requires treatment via solvent exchange and vacuum\ndrying due to the presence of a host molecule inside the channels\nof the structure. The process and the impact of the treatment of Cu<sub>3</sub>(C<sub>3</sub>N<sub>6</sub>H<sub>3</sub>) on its XRD pattern\nare thoroughly discussed. Additionally, results from stability, NMR\nand infrared spectroscopy, and thermogravimetric analysis. Finally,\nphotoluminescence and magnetic studies are conducted to evaluate their\npotential as a functional material.