A novel and simple approach to the synthesis of a new organic–inorganic 4C₃H₅N₃O₃²⁺.2C₃H₄N₃O₃⁺.5HPO₄^2-.4H₂O resulted from the reaction of melamine and phosphoric acid in methanol. It was identified by means of the single crystal X-ray diffraction and characterized using different physicochemical studies to gain deeper insight in its structure. The determination of the crystal structure showed that the compound crystallizes in monoclinic system with the space group P2₁, lattice parameters a=11.3061Å, b=20.9911)Å, c=12.2711Å. The UV-Vis shows a good transmittance in the visible range, with an absorption threshold at 255 nm. The thermal behavior divulges a good thermal stability up to 230°C.

三聚氰胺与三聚氰胺的反应产生了一种新颖而简单的合成新型有机-无机4C ₃ H ₅ N ₃ O ₃ ²⁺ .2C ₃ H ₄ N ₃ O ₃ ⁺ .5HPO ₄ ^2- .4H ₂ O的方法。甲醇中的磷酸。它是通过单晶X射线衍射鉴定的，并通过不同的理化研究对其进行了表征，以更深入地了解其结构。晶体结构的确定表明该化合物在具有空间群P2 ₁，晶格参数为a的单斜晶系中结晶。=11.3061Å，b = 20.9911）Å，c =12.2711Å。UV-Vis在可见光范围内显示出良好的透射率，吸收阈值为255 nm。热性能泄露了高达230°C的良好热稳定性。