The chemistry of complexes bearing triple bonds between transition metals and silicon or germanium has made considerable progress in the last two decades. For base-free complexes of this type, neutral and cationic complexes of Groups 5, 6, 7, 8, and 10 transition metals are known so far. The synthetic routes for these complexes can be categorized into two patterns: (1) reactions starting from stable divalent Group 14 element species (Category I), and (2) reactions starting from tetravalent Group 14 element species (Category II). These synthetic reactions are described first, and then characteristic structures and spectroscopic properties are discussed. Finally, several unique reactions originating from the peculiar reactivity of the metal-silicon/germanium triple bonds of silylyne and germylyne complexes are presented.

中文翻译：

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过渡金属-硅/锗三键复合物化学的最新进展

在过去的二十年中，在过渡金属和硅或锗之间带有三键的配合物的化学已经取得了长足的进步。对于这种类型的无碱配合物，迄今为止已知第5、6、7、8和10族过渡金属的中性和阳离子配合物。这些配合物的合成途径可分为两种模式：（1）从稳定的二价14族元素物种开始的反应（类别I），以及（2）从四价的14族元素物种开始的反应（类别II）。首先描述这些合成反应，然后讨论特征结构和光谱性质。最后，提出了一些独特的反应，这些反应源于甲硅烷基炔和germ炔复合物的金属-硅/锗三键的特殊反应性。