The Front Cover shows a general scheme for the hydrogen evolution reaction (HER) catalyzed by cobalt complexes in aqueous solutions. Hydrogen production from sunlight and water represents one promising approach to produce clean and renewable energy for the future. There has been tremendous progress in developing molecular Co catalysts for HER, especially in aqueous solutions. To provide insight into the structure‐function relationships in catalytic HER, recent developments in molecular Co complexes with pentadentate ligands are discussed. More information can be found in the Minireview by C. E. Webster, X. Zhao et al.

中文翻译：

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封面：水溶液中五齿配体的分子钴配合物催化的产氢结构-功能分析（Eur。J. Inorg。Chem。37/2020）

前封面显示了水溶液中钴配合物催化的氢气逸出反应（HER）的一般方案。阳光和水制氢代表了一种有前途的生产清洁和可再生能源的方法。在开发用于HER的分子Co催化剂方面取得了巨大的进步，尤其是在水溶液中。为了深入了解催化HER中的结构与功能之间的关系，讨论了具有五齿配体的分子Co配合物的最新进展。更多信息可以在C.E. Webster，X.Zhao等人的Minireview中找到。