Zeolite Host-Guest Materials

无机化学、生物无机化学和金属有机化学项目的这一奖项资助了德克萨斯大学达拉斯分校肯尼斯·J·巴尔克斯的实验室的研究。其目的是制备在催化和吸附过程中具有明显优势的新型沸石主客体材料。将继续通过吸附、离子交换、络合和模板化沸石内组装将封闭客体分子利用到沸石和其他多孔材料中。重点将放在客体分子周围主体基质的合成上，客体分子作为一个定义明确的物种而被遮挡。这种方法已经导致了已知的最大孔道沸石的发现。现在重点将转向多齿配合物，如酞菁、多胺、聚醚和席夫碱配体。为了制备手性主体材料和诱导不对称催化，还将引入手性官能团。将评估新的主客体材料在催化、分离和气敏应用中结合和激活小分子，如分子氧、氢、一氧化氮和烯烃的能力。新材料将被制备成具有催化作用的重要分子的空间。这些材料具有作为不对称催化剂、化学分离器和传感器的前景。

This award in the Inorganic, Bioinorganic and Organometallic Chemistry program funds research in the laboratory of Kenneth J. Balkus at the Univesity of Texas at Dallas. The objective is to prepare new zeolite host-guest materials that would offer clear advantages in catalytic and adsorption processes. Work will contintue to exploit occluding guest molecules into zeolites and other porous materials through adsorption, ion exchange, complexation and templated intrazeolite assembly. Emphasis will be on the synthesis of the host matrix around the guest molecule, which occludes as a well-defined species. This approach has already resulted in the discovery of the largest pore zeolite known. The focus will now turn to multidentate chelate complexes such as phthalocyanines, polyamines, polyethers and Schiff base ligands. Chiral functional groups will also be introduced in order to prepare chiral host materials and to induce asymmetric catalysis. New host-guest materials will be evaluated for binding and activating small molecules, such as molecular oxygen, hydrogen, nitric oxide, and olefins in catalysis, separations and gas-sensing applications. New materials will be prepared with spaces designed to hold catalytically important molecules. These materials hold the prospect of functioning as asymmetric catalysts, chemical separators and sensors.