Development of Multi-functional Ligands for Application of Metal Complexes

金属配合物应用多功能配体的开发

基本信息

批准号：
03650687
负责人：
SATO Mitsunobu
金额：
$ 1.09万
依托单位：
Kogakuin 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：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

项目摘要

1. The acylation of a Co(III)-DHPTA mononuclear complex have been examined in order to obtain oligomers or polymers in which an octahedral complex are as the side chain, where DHPTA represents 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid. The non-coordinated hydroxyl group in the complex was successfully methacrylated by the reaction of the corresponding acid anhydride with the complex in aprotic solvent, only in the presence of a cryptand. In the presence of a polymerization inhibitor, one methacryl group which can be polymerized, was introduced. On the other hand, the products, which may be formed by sequential polymerization after the acylation, from the methacrylation of the complex without polymerization inhibitor, gave a hydro-gel. This result indicates that the multi-ligand oligomer or polymer is obtained in the chemical modification. We are now examininig the possibility to obtain films of ceramics by the use of hydro-gel obtained here, as an application.2. Removal of Nitrogen oxides in atmosphere is an important subject, not only for chemistry. In this project, we have investigated the coordination behaviors of nitrite ion toward iron(III) in the presence of the above multi-functional ligand, DHPTA. We found the formation of mu -oxo tetranuclear Fe(III) complex ion involving two bridging nitrite ions, from the X-ray crystal structure determination of an isolated green compound Significantly, the multinuclear complex was discovered from an acidic aqueous solution, pH below 2.5. This result suggests that the reaction system consisted of iron(III) and DHPTA may afford an opportunity for capture of nitrogen oxides from serious acid rain and their removal. Moreover, the novel tetranuclear complex are interested in both fields of biochemistry and magnetochemistry.

1。已经检查了CO（III）-DHPTA单核复合物的酰化，以获得八面体配合物作为侧链的低聚物或聚合物，其中DHPTA代表1,3-二氨基-2-二羟基丙烷-N，N，，N，，N，，N，，N，，N，，N，，dhpta。 n，n'，n'-二乙酸。仅在加密的存在下，相应的酸性赤二硫化物与复合物与复合物的反应成功地甲基化了复合物中的非协调羟基。在存在聚合抑制剂的情况下，引入了一个可以聚合的甲基丙烯酰基。另一方面，可以通过在没有聚合抑制剂的复合物的甲基丙烯酸化后通过顺序聚合形成的产物，产生了水 - 凝胶。该结果表明在化学修饰中获得了多配体的低聚物或聚合物。现在，我们正在检查通过在此处获得的水力凝胶作为应用程序获得陶瓷膜的可能性。2。去除大气中的氮氧化物是一个重要的主题，不仅对于化学而言。在这个项目中，我们研究了在上述多功能配体DHPTA的情况下，亚硝酸盐对铁（III）的协调行为。我们发现，由X射线晶体结构的测定显着地从酸性水溶液中发现了多核化合物，从低于2.5的pH下发现了多核化合物，从而形成了涉及两个桥接亚硝酸盐离子的Mu -oxo四核Fe（III）复合离子，涉及两个桥接亚硝酸盐离子。。该结果表明，反应系统由铁（III）和DHPTA组成，可能有机会从严重的酸雨及其去除中捕获氮氧化物。此外，新型的四核综合体对生物化学和磁化学领域都感兴趣。