Design and Application of Molecular Recognizing Fields on Interlayer Modified Host Compounds Derived from Inorganic Ion-Exchangers

无机离子交换剂层间改性主体化合物分子识别场的设计与应用

基本信息

批准号：
63550593
负责人：
UEMATSU Takayoshi
金额：
$ 1.34万
依托单位：
Faculty of Engineering, CHIBA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

项目摘要

1 Design of Molecular Sieving Rigid Reaction Fields by Pillarization of lamellar Compounds: New porous catalyst support with rigid three-dimensional reaction fields were prepared by the pillarization of synthetic clay compounds with metal oxides and fine metal particles. The structure and properties were studied by powder X-ray diffraction methods, measuring BET surface area and chemisorption of NH_3. The host-guest chemistry and shape recognizing properties of these molecular dimension pores were also studied. It was confirmed that the physical chemical environment of the fields which consists of geometry by the layer and pillar structures can differentiate the chemical properties such as shape, size, polarity and chemical bonds of guest molecules. These host properties have large potentials for the development of new type of molecular recognizing adsorbent and catalysts.2 Design of Tunable Reaction Fields by Clay-Intercalated Metal Complexes: Flexible reaction spaces were prepared by … More interlayer metal complexes where the interlayer spacings are tunable by changing the solvent for the guest molecules. The chemical properties of the reaction fields thus prepared were studied in terms of the catalysis. They were found selectively to absorb various olefins, recognizing their chain length, structure shape and multiple bonds. They enhanced also, selective partial hydrogenation of di-olefins and acetylens3 Design of New Class of Reaction Fields by the Chemical Modification of Clay Interlayer Surface: Fine chemical recognizing properties were tried to given to clay compounds by modifying the inner surface OH into ammino groups with different chain length. This modification may lead to the alternation of hydrophillisity and acid-basisity in the pores. The interlayer distances was expanded, and the metal complexes were stabilized by the chemical coordination. This type of catalysts enhanced higher selectivities for the hydrogenation of olefines, acetylenes, and especially characteristic recognition of conjugating systems. Less

1 层状化合物柱化分子筛刚性反应场的设计：将合成粘土化合物与金属氧化物和细金属颗粒柱化，制备了具有刚性三维反应场的新型多孔催化剂载体，并通过粉末研究了其结构和性能。通过X射线衍射法、BET比表面积测定和NH_3的化学吸附研究也证实了这些分子尺寸孔的主客体化学性质和形状识别性质。由层和柱结构组成的场的物理化学环境可以区分客体分子的形状、大小、极性和化学键等化学性质，这些宿主性质对于开发新型分子具有巨大的潜力。识别吸附剂和催化剂。2 通过粘土插层金属配合物设计可调反应场：通过层间金属配合物制备灵活的反应空间，其中层间距可通过改变客体分子的溶剂来调节。对由此制备的反应场进行了催化方面的研究，发现它们可以选择性地吸收各种烯烃，识别它们的链长、结构形状和多重键，它们还增强了二烯烃和乙炔的选择性部分氢化。粘土层间表面化学改性的反应场：通过将内表面OH改性为不同链长的氨基，尝试赋予粘土化合物精细的化学识别性能。这种改性可能导致粘土化合物的交替。孔内的亲水性和酸碱性扩大，金属配合物通过化学配位得到稳定，提高了烯烃、乙炔加氢的选择性，尤其是共轭体系的特征识别能力。