A novel microporous calcosilicate material AES-7 was synthesized through the hydrothermal treatment of a mechanochemically prepared precursor. The crystal structure of AES-7 was successfully solved by the direct method using its powder X-ray diffraction data. The chemical composition of AES-7 is |Li_7.4(H₂O)_35.7(OH)_7.4| [Si₆₄Ca₁₆O₉₆(OH)₉₆], and the lattice constants and the space group were determined as a = 10.30560(13) Å, b = 17.5116(3) Å, c = 27.7059(4) Å, and Fddd, respectively. The structure of AES-7 is composed of phyllosilicate layers of single tetrahedral nets of 6-rings. The neighboring silicate layers are connected by Li⁺ and Ca²⁺ located in the interlayer, resulting in the formation of unique pore structure. Li⁺ is located at the center of four interlayer oxygen atoms, forming a pseudo LiO₄ tetrahedron. The presence of LiO₄ tetrahedra was strongly suggested by ⁶Li and ⁷Li MAS NMR measurements and crystal structure analysis. AES-7 has a one-dimensional distorted 10-ring channel and can adsorb small molecules such as water.

通过对机械化学制备的前驱体进行水热处理，合成了新型的微孔钙硅酸盐材料AES-7。AES-7的粉末X射线衍射数据通过直接方法成功地解决了它的晶体结构。AES-7的化学成分为| Li _7.4（H ₂ O）_35.7（OH）_7.4 | [Si ₆₄ Ca ₁₆ O ₉₆（OH）₉₆ ]，晶格常数和空间群确定为a = 10.30560（13）Å，b = 17.5116（3）Å，c = 27.7059（4）Å，和Fddd， 分别。AES-7的结构由6环单四面体网的页硅酸盐层组成。相邻的硅酸盐层通过位于中间层中的Li ⁺和Ca ²⁺连接，从而形成独特的孔结构。Li ⁺位于四个层间氧原子的中心，形成伪LiO ₄四面体。通过⁶ Li和⁷ Li MAS NMR测量和晶体结构分析强烈暗示了LiO ₄四面体的存在。AES-7具有一维扭曲的10环通道，可以吸附小分子，例如水。