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Role of Ligands on the Control of Metal-Metal Interactions in Metal Complexes

配体在金属配合物中金属-金属相互作用控制中的作用

基本信息

批准号：
08304038
负责人：
SASAKI Yoichi
金额：
$ 9.28万
依托单位：
HOKKAIDO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08304038/
关键词：
Metl-to-metal bond Transition metal complexes X-Ray structural determination Enzyme model complexes Metal cluster compolexes Redox reactions Functional Ligands Magnetic interactions 金属間相互作用錯体の磁性オキソ錯体小分子活性化

项目摘要

Meta-metal interactions of di- and polynuclear complexes may be effectively controlled by designing ligands. The purpose of this research project is to study the way of controlling metal-metal interaction by ligands in a systematic way. The research group involves 15 members who are interested in the subject from various view points. The research has been carried out for 3 years. We have set main research areas for each year ; namely for first year, "role of oxo, hydroxo, and alkoxo bridges to control metal-metal interaction. The metal-metal interaction is effectively controlled by the protonation at the oxide bridge which is coupled with redox reactions at the metal centers. The discussions have been made in relation to some biological systems which contain this structural units. Magnetic interactions between metal centers have also been extensively studied. For the second year, our effort was concentrated on the area of solid state metal-metal interaction. Various sulfide bridged new materials have been obtained and their catalytic behavior was extensively studied. In the last year, we have focused to the design of ligands which are appropriate to induce desirable properties of metal complexes. Functionalized metal complexes such as DNA interactions, CO_2 reductions, and sugar-containing materials have been developed. Throughout the project research, collaborating researches between the members have been greatly encouradged and many joint papers between the members have been published. Initial purpose of the research has been largely established, but many new aspects in the field have also been realized. At the final meeting in December, 1998. we have summarized our results in order to make clear the future problems and have made new research plans for the future.

双核和多核配合物的间位金属相互作用可以通过设计配体来有效控制。本研究项目的目的是系统地研究配体控制金属-金属相互作用的方法。研究小组由 15 名成员组成，他们从不同的角度对该主题感兴趣。该研究已进行了3年。我们每年都设定了主要研究领域；即第一年，“氧桥、羟基桥和烷氧基桥在控制金属-金属相互作用中的作用。金属-金属相互作用是通过氧化物桥处的质子化有效控制的，该质子化与金属中心的氧化还原反应相结合。已经对包含这种结构单元的一些生物系统进行了讨论。金属中心之间的磁性相互作用也得到了广泛的研究。第二年，我们的努力集中在固态金属-金属相互作用领域。人们已经获得了各种硫桥新材料，并对其催化行为进行了广泛的研究。去年，我们专注于设计适合诱导金属配合物所需特性的配体。 DNA相互作用、CO_2还原和含糖材料等功能化金属复合物已被开发出来。在整个项目研究过程中，各部门之间的合作研究会员们受到了极大的鼓舞，发表了许多会员之间的联合论文。研究的最初目的已经基本确定，但该领域的许多新方面也已经实现。在1998年12月的最后一次会议上，我们总结了我们的成果，以明确未来的问题，并为未来制定了新的研究计划。