摘要
本文阐明了“活性元件组装”设想在过渡金属硫桥原子簇合理合成方面的基本思想,指出合理合成过渡金属硫桥原子簇时,具有孤对电子的配位不饱和的硫原子所起的重要作用。总结了硫原子在化合物中的配位构型及其与组装活性的关系,并例举六种类型的“元件组装”,清楚表明了“元件组装”是合成过渡金属硫桥原子簇的合理途径,并指出了“元件组装”设想在含其他桥原子的过渡金属原子簇中的可能应用。
The basic conception of the rational synthesis of transition metal cluster by the use of reactive fragments as building blocks was elucidated. It is shown that the sulfur atoms with lone-pair electrons and unsaturated coordinations play an important role in this rational synthesis. The relationship between the coordination types of the sulfur atoms and their assembling activity in the compounds was summarized. Examples of the six kinds of 'Unit Construction' with reactive fragments as building blocks were shown , indicating clearly that the 'Unit Construction' is a reasonable way in the synthesis of transition metal clusters involving sulfur bridging. Finally,the potential application of the 'Unit Construction' schemes in the synthesis of transition metal clusters involving others bridging atoms was approached.
