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首页> 外文期刊>Chemistry: A European journal >Stabilization of p-Block Organoelement Terminal Hydroxides,Thiols,and Selenols Required Newer Synthetic Strategies
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Stabilization of p-Block Organoelement Terminal Hydroxides,Thiols,and Selenols Required Newer Synthetic Strategies

机译：对p嵌段有机元素末端氢氧化物，硫醇和硒醇的稳定化需要更新的合成策略

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摘要

Metal hydroxides represent a very interesting and highly useful class of compounds that have been known to chemists for a very long time.While alkali and alkaline earth metal hydroxides (s-block) are com-monplace chemicals in terms of their abundance and their use in a chemical laboratory as bases,the interest in Bronsted acidic molecular terminal hydroxides of p-block elements,such as aluminum and silicon,has been of recent origin,with respect to the variety of applications these compounds can offer both in materials science and catalysis.Moreover,these systems are environmentally friendly,relative to the metal halides,owing to their -OH functionality (resembling that of water).Design and conceptualization of the corresponding terminal thiols,selenols,and tellurols (M-SH,M-SeH,and M-TeH) offer even more challenging problems to synthetic inorganic chemists.This concept summarizes some of the recent strategies developed to stabilize these otherwise very unstable species.The successful preparation of a number of silicon trihydroxides a few years back resulted in the generation of several model compounds for metal-silicates.The recent synthesis of unusual aluminum compounds such as RAl(OH)_2,RAl(SH)_2,and RAl(SeH)_2 with terminal EH (E=O,Se,or Se) groups is likely to change the ways in which some of the well-known catalytic conversions are being carried out.The need for very flexible and innovative synthetic strategies to achieve these unusual compounds is emphasized in this concept.
机译：金属氢氧化物代表了很长一段时间以来化学家已经知道的一类非常有趣且非常有用的化合物。尽管碱金属和碱土金属氢氧化物（s嵌段）在其丰度及其用途方面是常见的化学品。作为基础的化学实验室，人们对p嵌段元素（例如铝和硅）的布朗斯台德酸性分子末端氢氧化物的兴趣是最近才出现的，这些化合物可以在材料科学和催化领域提供广泛的应用。此外，由于它们的-OH功能（类似于水），这些系统相对于金属卤化物是环境友好的。相应的末端硫醇，硒醇和碲（M-SH，M-SeH和M-TeH）为合成无机化学家提供了更具挑战性的问题，该概念总结了为稳定这些原本非常不稳定的物种而开发的一些最新策略。几年前对多种氢氧化硅进行了修复，从而生成了几种用于金属硅酸盐的模型化合物。最近合成了不常见的铝化合物，如RAl（OH）_2，RAl（SH）_2和RAl（SeH）带有末端EH（E = O，Se或Se）基团的_2可能会改变一些著名的催化转化方法。需要非常灵活和创新的合成策略来实现这些不同寻常的化合物在这个概念中被强调。

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