7.专业文章阅读之1解说.ppt

有机金属化合物之所以被单独归为一类，是因为它们中的有机配体基团对于水解和氧化较为敏感，这就迫使其制备方法也比传统的维尔纳式配位化合物制备方法更为苛刻。合成方法学，特别是在低配位能力溶剂中制备配体的方法，使得有能力探索包含弱配位能力配体（如烃类、H2和N2）的配位化合物。因为在某种意义上配体都是石油化工产品，有机金属化学也很大程度上从相关工业中受益。 Cluster compounds Clusters can be found in all classes of chemical compounds. According to the commonly accepted definition, a cluster consists minimally of a triangular set of atoms that are directly bonded to each other. But metal-metal bonded dimetallic complexes are highly relevant to the area. Clusters occur in “pure” inorganic systems, organometallic chemistry, main group chemistry, and bioinorganic chemistry. 原子簇化合物存在于各类化合物中，通常被定义为：一个原子簇至少包含有直接相互成键的三原子三角形结构。（凡以3个或3个以上原子直接键合构成的多面体或笼为核心，连接外围原子或基团而形成的结构单元。）但是金属-金属键合的双金属配合物与其面积高度相关。原子簇化合物存在于纯的无机体系，无机金属化学，主族元素化学和生物无机化学中。 The distinction between very large clusters and bulk solids is increasingly blurred. This interface is the chemical basis of nanoscience or nanotechnology and specifically arise from the study of quantum size effects in cadmium selenide clusters. Thus, large clusters can be described as an array of bound atoms intermediate in character between a molecule and a solid. 大尺寸原子簇和固体粒子的界定越来越模糊。有一个界定就是基于化学层次上的纳米科学和纳米技术，其起因于对镉硒化学物原子簇量子尺寸效应的研究。因此，大尺寸原子簇是指介于分子与固体粒子之间的多原子团粒分子。 Bioinorganic compounds By definition, these compounds occur in nature, but the subfield includes anthropogenic species, such as pollutants (e.g. methylmercury) and drugs (e.g. Cisplatin). The field, which incorporates many aspects of biochemistry, includes many kinds of compounds, e.g. the phosphates in DNA, and also metal complexes containing ligands that range from biological macromolecules, commonly peptides, to ill-defined species such as humic acid, and to water (e.g. coordinated to gadolinium complexes employed for MRI). 这些化合物存在于自然界中，但是其分支也包括了人为的各类物质如污染物（如甲基汞）和药物（如顺氯氨铂）。这个涉及生物化学诸多方面的领域包括很多类型的化合物，如从DNA中的磷酸盐，含有来自生物大分子配体的金属配合物，一般肽链，到定义不明确的腐殖酸，再到水。 Traditionally bioinorganic chemistry focuses on electron- and energy-transfer in p