Co(II) Complex with a Covalently Attached Pendent Quinol Selectively Reduces O 2 to H 2 O
Co(II) Complex with a Covalently Attached Pendent Quinol Selectively Reduces O 2 to H 2 O
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带有共价连接的对苯二酚侧链的 Co(II) 络合物选择性地将 O 2 还原为 H 2 O
DOI：
10.1021/jacs.2c08315
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发表时间：
2022
影响因子：
15
通讯作者：
Goldsmith, Christian R.
中科院分区：
文献类型：
--
作者：
Obisesan, Segun V.;Rose, Cayla;Farnum, Byron H.;Goldsmith, Christian R.
一个钴（II）配合物与多齿含喹啉的配体H2 qp 1作为一个有效的电催化剂氧还原。在没有任何额外的电子-质子转移介质的情况下，电催化对H2O具有选择性;相反，用苯酚取代对苯二酚的相关络合物在相同条件下主要产生H2 O2。我们建议，氧化还原活性的醌醇捐赠两个电子的能力影响的产品确定步骤。
A Co(II) complex with the polydentate quinol-containing ligand H2qp1 acts as an efficient electrocatalyst for oxygen reduction. Without any additional electron–proton transfer mediators, the electrocatalysis is selective for H2O; a related complex that substitutes a phenol for the quinol, conversely, instead produces mostly H2O2under the same conditions. We propose that the ability of the redox-active quinol to donate two electrons impacts the product-determining step.