U.S.-China Cooperative Research: Preparation and Propertiesof Layered Organic Derivatives of Group IV Metals

本论文是关于“层状有机玻璃的制备及性质”的提案， 第四族金属的衍生物”之间的亚伯拉罕克利尔菲尔德博士 德州农工大学教授、青海大学教授彭广志 中科院盐湖研究所 由NSF和CAS共同赞助。 研究人员建议将联合收割机的合成能力 青海研究所， 德克萨斯A M（固态NMR，质谱，热分析， 表面分析、电子显微镜和衍射方法） 研究有机衍生物的合成和行为 层状IV族磷酸盐，特别是它们的合成 新型膦酸和有机磷酸酯及其 随后与IV阳离子反应。 这些反应导致 层状金属膦酸盐和磷酸盐的形成 其中有机部分位于层间空间中。 当使用二膦酸时，有机基团桥接 并作为将层保持在适当位置的支柱。 研究人员将尝试制备混合衍生物， 以使柱间隔开并产生相对均匀的孔 尺寸，并用羧酸酯官能化有机基团， 以赋予离子交换和络合 权力的衍生品。 催化活性物质还将 固定在层状化合物上。 该研究成果可应用于光化学、分离、 方法、催化、离子交换和离子筛分。 的 主题化合物也可以是合成 新的夹层磷酸盐和氧化物。

This proposal on "Preparation and Properties of Layered Organic Derivatives of Group IV Metals" between Dr. Abraham Clearfield of Texas A&M University and Professor Guang-Zhi Peng of the Qinghai Institute of Salt Lake of the Chinese Academy of Sciences (CAS) is jointly sponsored by NSF and CAS. The researchers propose to combine synthetic capabilities of the Qinghai Institute with characterization techniques available at Texas A&M (solid state NMR, mass spectrometry, thermal analysis, surface analysis, electron microscopy and diffraction methods) to investigate the synthesis and behavior of organic derivatives of layered group IV phosphates, especially and their synthesis of novel phosphonic acids and organic phosphates and their subsequent reaction with IV cations. These reactions lead to the formation of layered metal phosphonates and phosphates in which the organic moiety resides in the interlamellar space. When diphosphonic acids are used, the organic group bridges across layers and acts as pillars holding the layers in place. The researchers will attempt to prepare mixed derivatives so as to space the pillars and produce pores of relatively uniform size, and to functionalize the organic groups with carboxylate, sulphonate and amino groups to impart ion exchange and complexing power to the derivatives. Catalyically active species will also be immobilized on the layered compounds. This research should be applicable to photochemistry, separations procedures, catalysis, ion exchange and ion sieving. The subject compounds can also be precursors to the synthesis of novel interlayered phosphates and oxides.