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A study of guest molecular motion and host structure of multi-dimensional framework metal complex hosts formed with bridging cyano groups.

桥连氰基形成的多维骨架金属络合物主体的客体分子运动和主体结构的研究。

基本信息

批准号：
09640596
负责人：
NISHIKIORI Shin-ichi
金额：
$ 2.43万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

This research has been done in order to obtain information about the relation between guest molecular motion and host structure of multi-dimensional framework metal complex host clathrates formed with bridging cyano groups. Main techniques used here were ィイD12ィエD1H-NMR and X-ray diffraction. Obtained results and information are as follows.1. A computer program for analyzing molecular motion from ィイD12ィエD1H-NMR powder patterns. This program is designed for treating various types of molecular motional modes.2. The thermally activated process of the out-of-plane motion of the benzene guest of [Cd(CN)(dmen)ィイD22ィエD2]ィイD22ィエD2,[Cd(CN)ィイD24ィエD2] benzene clathrate, and molecular motion of a part of the metal complex host were clarified.3. The information of benzene, toluene and ethylbenzene guest molecular motion in the cavity of a [N(CHィイD23ィエD2)ィイD24ィエD2] [CdィイD23ィエD2(CN)ィイD27ィエD2] host, and their motional behavior during the process of thermal decomposition was obtained. Some fundamental m … More olecular motional modes and some techniques of constructing more complicated molecular motion using the fundamental modes have ,been presented.4. A phase transition of [S(CHィイD23ィエD2)ィイD23ィエD2][CdィイD23ィエD2(CN)ィイD27ィエD2]・p-xylene clathrate, which is accompanied with change of p-xylene guest molecular motional mode and host structure, was found out.5. The information of the motional behavior of the pyrrole guest, which is a polar molecule, in Cd(NHィイD23ィエD2)ィイD22ィエD2Ni(CN)ィイD24ィエD2 and Cd(en)Ni(CN)ィイD24ィエD2 host was obtained. It was shown that the orientation of the pyrrole guest is maintained in spite of its large reorientational motion like that found in its beazene clathrate, and a cooperative phenomenon coming from a host-guest interaction was found out.Guest molecular motion as a simple thermally activated process has been a target of this research so far. In a next step, phenomena, which appear as a result of cooperative effect of host-guest interaction coming from guest molecular motion and flexibility of host, will become a main target. Less

本研究的目的是为了获得有关客体分子运动和主体结构之间的关系的多维骨架金属配合物的主体笼形物与氰基桥接形成的信息。本文主要采用的技术是核磁共振氢谱（NMR）和X射线衍射（XRD）。获得的结果和信息如下.一个用于从D12核磁共振粉末谱图分析分子运动的计算机程序。该程序是为处理各种类型的分子运动模式而设计的.阐明了[Cd（CN）（dmen）][Cd（CN）][D24][D22][D24][D26][D28][D29][D得到了苯、甲苯和邻位客体分子在[N（CH_（CN）_（D_27）_（D_2）_（CN）_（一些基本的M ...更多信息提出了分子运动模式和利用基模构造更复杂分子运动的技术.发现了[S（CH）D23 <$$> D2）<$N D23 <$N D2][Cd <$N D23 <$N D2（CN）<$N D27 <$N D2]·对二甲苯包合物的相变过程，伴随着对二甲苯客体分子运动模式和主体结构的变化.得到了极性分子吡咯客体在Cd（NH）Ni（CN）Ni（D24）Ni（D22）中的运动行为信息。结果表明，尽管吡咯客体分子发生了类似于苯并氮烯包合物的大的再取向运动，但其取向仍然保持不变，并发现了一种来自主客体相互作用的协同现象。下一步，客体分子的运动和主体的柔性导致的主客体相互作用的协同效应所出现的现象将成为主要目标。少