Light-active dinuclear iridium pentahydride complexes catalyze the decomposition of formic acid to generate H2 by irradiation (λ =395 nm) under ambient temperature and base-free conditions. The catalyst activity is sensitive to light producing H2 under light irradiation, but with no reaction being observed in the absence of light or when the light is switched off, thereby demonstrating the clear ON/OFF switching ability of this system. Importantly, the dinuclear structure of the catalyst is sufficiently stable to be maintained under the catalytic conditions employed herein.

中文翻译：

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通过光活性双核铱催化剂按需生产甲酸。

在室温和无碱条件下，光活性双核五氢化铱铱配合物通过辐射（λ= 395 nm）催化甲酸分解生成H2。催化剂的活性对光照射下产生的H 2敏感，但是在不存在光或关闭光的情况下未观察到反应，从而证明该系统具有明显的ON / OFF切换能力。重要的是，催化剂的双核结构足够稳定以保持在本文所用的催化条件下。