The Cover Feature shows that addition of simple non‐redox metal ions can promote olefin isomerization dramatically with a commercially available Ru(H)₂(CO)(PPh₃)₃ catalyst in an open‐flask system. In their Full Paper, Z. Lv et al. demonstrate that the catalytic performance can be significantly improved by adding Mg²⁺ ions that could induce the dissociation of the PPh₃ ligand from the Ru center to offer unoccupied coordination sites for the alkene and to form the Mg‐bridged adduct OC−Ru−(H)₂−Mg²⁺ as the highly active species, which benefited the isomerization significantly through the metal hydride addition–elimination pathway. More information can be found in the Full Paper by Z. Lv et al. on page 3849 in Issue 20, 2017 (DOI: 10.1002/cctc.201700687).

中文翻译：

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封面人物：钌与非氧化还原金属盐的氢化物配合物进行瓶状烯烃异构化的一般策略（ChemCatChem 20/2017）

封面功能显示，使用简单的非氧化还原金属离子可以在开瓶系统中使用市售的Ru（H）₂（CO）（PPh ₃）₃催化剂极大地促进烯烃的异构化。Z. Lv等人在其论文全文中。证明通过添加Mg ²⁺离子可以显着改善催化性能，这些离子可以诱导PPh ₃配体从Ru中心解离，从而为烯烃提供未占据的配位点并形成Mg-桥联的加合物OC-Ru-（ H）_2-镁²⁺作为高活性物种，通过金属氢化物加成-消除途径显着受益于异构化。可以在Z. Lv等人的论文全文中找到更多信息。就在第20期，2017年3849页（：10.1002 / cctc.201700687 DOI）。