Copper(II)–Silver(I) Macrocyclic Metal–Organic Framework: A Highly Efficient Reusable Triplet Oxygen Collector and Singlet Oxygen Generator

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• 作者：Jian-Cheng Wang ; Jing Yang ; Shen-Qing Wang ; Jian-Ping Ma ; Yu-Bin Dong
• 刊名：Inorganic Chemistry
• 出版年：2017
• 出版时间：February 6, 2017
• 年：2017
• 卷：56
• 期：3
• 页码：1049-1052
• 全文大小：286K
• ISSN：1520-510X

文摘

The generation of highly reactive oxygen (<sup>1sup>O<sub>2sub>) is very significant for a variety of applications such as degradation, bleaching, chemical synthesis, photodynamic therapy for tumor treatment, and others. Herein, we report a novel peroxide-dianion-embedded bimetallic macrocycle, [O<sub>2sub><sup>2–sup>@Ag<sub>4sub>Cu<sub>4sub>L<sub>4sub>]<sup>2+sup> (2), that can completely release the inserted peroxide dianion as the singlet oxygen (<sup>1sup>O<sub>2sub>) via a H<sup>+sup>-assisted disproportionation process in methanol. Notably, the resulting empty Ag<sub>4sub>Cu<sub>4sub>L<sub>4sub>(ClO<sub>4sub>)<sub>4sub> (3) is able to trap oxygen (<sup>3sup>O<sub>2sub>) from air and fixes it in the macrocycle host as a peroxide dianion; furthermore, it releases it as <sup>1sup>O<sub>2sub> again in the presence of H<sup>+sup>. So, the bimetallic macrocycle [Ag<sub>4sub>Cu<sub>4sub>L<sub>4sub>]<sup>4+sup> herein behaves as a highly efficient reusable triplet oxygen receptor and singlet oxygen generator.