Synthesis of Discrete Polynuclear Complexes and Units for Metal-Assembled Compounds

离散多核配合物和金属组装化合物单元的合成

基本信息

批准号：
10149106
负责人：
OKAWA Hisashi
金额：
$ 44.74万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas (A)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2001
项目状态：
已结题

项目摘要

1) Heterodinuclear metal complexes of various combinations of metal ions were prepared using compartmental ligands and their physicochemical properties and functions were examined. Extensive magnetic studies were made for the complexes to reveal the significance of the electronic structures in determining the nature of magnetic interaction.2) Cyanide-bridged bimetallic compounds of various network structures were prepared and their magnetic nature was studied. Spontaneous magnetization occurs for 2-D and 3-D network compounds but not for 1-D compounds. [Mn(glya)]_3[Cr(CN)_6]_3 (glya=glycine amide) has a 3-D network based on a defective cubane structure and shows ferromagnetic ordering with Tc=71 K, that is the highest among molecular magnets so far structurally characterized.3) A new class of cluster compounds, comprising of 。ニorgano-metallic。ヌ unit and metal oxide unit, were prepared and their properties were studied. They include 。ニdouble bookshelf。ヌ type, 。ニwindmill。ヌ type, 。ニtriple cubane。ヌ type etc. and unique reactivities were found for some of them.4) Porous coordination polymers of various networks were designed by the combination of metal ions and an organic building ligand such as 4,4'-bipyridine. They function as a host for including quest molecules such as CH_4, CO_2, O_2 and N_2.5) Construction of covalently-linked linear metal clusters was studied and linear M-Mo-Mo-M (M=Rh, Ir) clusters were obtained by the reaction of Mo_2(pyphos)_4 (pyphos=6-dipenylphosphino-pyridonate) with M(I) complexes. The terminal metal is reactive due to coordinative unsaturation and some unique reactions were developed.6) Tetranuclear Fe(III) compounds of a cubane structure were prepared using tridentate alcoholic ligands and their magnetic properties were examined. The complex [Fe_4(sae)_4(MeOH)_4] (sae=salicylideneaminoethanolate) was found to be a single-molecule magnet based on various magnetic studies.

1）使用隔室配体制备了各种金属离子组合的异核金属络合物，并检查了它们的物理特性和功能。对复合物进行了广泛的磁研究，以揭示电子结构在确定磁相互作用的性质中的重要性。2）制备了各种网络结构的氰化物桥梁的双金属化合物，并研究了它们的磁性。 2-D和3-D网络化合物发生自发磁化，但对于1-D化合物而言并非发生。 [Mn（Glya）] _ 3 [Cr（CN）_6] _3（Glya = Glycine Amide）具有3-D网络基于有缺陷的古巴结构，并显示了TC = 71 K的铁磁订购，这是迄今为止的分子磁铁中最高的结构性特征。 NI有机金属。制备NU单元和金属氧化物单位，其性能是研究的。它们包括。 ni双书架。 nu类型，。 niwindmill。 nu类型，。亚硝基古巴。发现其中一些的NU类型和独特的反应率。4）各种网络的多孔配位聚合物是通过金属离子和有机建筑物配体（如4,4'Bipyridine）组合而设计的。它们充当了宿主，包括QU_4，CO_2，O_2和N_2.5）的构造，并通过MO_2（Pyphos）_4（Pyphos）_4（pyphos）_4（pyphos）_4（pyphos）= 6-Dipynylsylsylsylsyylsyld-prosphosphosphose of Mo_2（pyphos）构建共价链接线性金属簇（M = RH，ir）簇。末端金属由于坐标不饱和而产生了反应性，并开发了一些独特的反应。6）使用三齿含酒精的配体制备了古巴结构的四核Fe（III）化合物，并检查了其磁性。基于各种磁性研究，发现复合物[Fe_4（SAE）_4（MeOH）_4]（SAE = Sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae = sae _4]）是单分子磁铁。