摘要
本文是作者在钼原子簇合成化学研究的综合性报导，包括自兜合成和设计合成两个部分。这一部分概述了一些Ｍｏ（＋３）～Ｍｏ（＋６）单核化合物在Ｃｌ~－、Ｓ^（２－）、ＣＨ_３ＣＯ_２~－和（ＥｔＯ）ＰＳ_２~－等配基参与下的自兜反应及其产物，总结了成簇的某些规律。包括Ｍｏ原子的价态，μ－桥基的种类，介质的酸度对所形成的簇合物的影响。反应中卤原子的交换现象，以及和ＲＣＯ_２~－（ＥｔＯ）_２ＰＳ_２~－两种双齿配基的配位特点。讨论了自兜合成方法的局限性。
A summary in the course of authors'investigation on the synthetic chemistry of Mo cluster contains two parts of self-assembly synthesis and design synthesis, of which the self-assembly synthesis is presented in this paper. The survey on a series of the self-assembly reactions and products of mono-nuclear Mo(+3～+ 6) compounds as starting material with the ligands such as Cl￣-, S￣(2-), CH_3CO_2￣-,and (EtO)_2 PS_2￣- etc is given. Meanwhile, some cluster-forming rules, including the effects of the oxidation valences of Mo atoms, of the sorts of doubly bridging (μ-) ligands, and of the acidities of reaction solutions(mediums) on the formed cluster products, are obtained. In addition,proper attention has been paid to the exchanging of halogen atoms during the process of synthesis and the coordination features of the two bidentate ligands, RCO_2￣- and (EtO)_2 PS_2￣-. Finally, the restrictives of the self-assembly synthetic method for the synthesis of Mo clusters are noted and discussed briefiy as well.
基金
国家自然科学基金
结构化学国家重点实验室资助
关键词
原子簇
合成化学
自兜合成
钼
成簇反应
molybdenum cluster,synthesis chemistry, self-assembly synthesis
