Copper(II)-Silver(I) Macrocyclic Metal-Organic Framework: A Highly Efficient Reusable Triplet Oxygen Collector and Singlet Oxygen Generator.
Copper(II)-Silver(I) Macrocyclic Metal-Organic Framework: A Highly Efficient Reusable Triplet Oxygen Collector and Singlet Oxygen Generator.
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DOI：
10.1021/acs.inorgchem.6b02918
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发表时间：
2017-01
影响因子：
4.6
通讯作者：
Jian-Cheng Wang;Jing Yang;Shen-Qing Wang;Jianping Ma;Yu‐Bin Dong
中科院分区：
文献类型：
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作者：
Jian-Cheng Wang;Jing Yang;Shen-Qing Wang;Jianping Ma;Yu‐Bin Dong
高活性氧（1 O2）的产生对于多种应用如降解、漂白、化学合成、用于肿瘤治疗的光动力疗法等是非常重要的。本文报道了一种新的过氧化物阴离子嵌入的双金属大环化合物[O22-@Ag4Cu4L4]2+（2），它可以通过甲醇中的H+辅助反硝化过程将过氧化物阴离子以单线态氧（1 O2）的形式完全释放出来.值得注意的是，所得空的Ag 4Cu 4L 4（ClO 4）4（3）能够从空气中捕获氧（3 O2），并将其作为过氧化物二价阴离子固定在大环主体中;此外，在H+存在下，它再次将其作为1 O2释放。因此，本文中的双金属大环[Ag 4Cu 4L 4]4+表现为高效的可重复使用的三重态氧受体和单重态氧产生剂。
The generation of highly reactive oxygen (1O2) 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, [O22-@Ag4Cu4L4]2+ (2), that can completely release the inserted peroxide dianion as the singlet oxygen (1O2) via a H+-assisted disproportionation process in methanol. Notably, the resulting empty Ag4Cu4L4(ClO4)4 (3) is able to trap oxygen (3O2) from air and fixes it in the macrocycle host as a peroxide dianion; furthermore, it releases it as 1O2 again in the presence of H+. So, the bimetallic macrocycle [Ag4Cu4L4]4+ herein behaves as a highly efficient reusable triplet oxygen receptor and singlet oxygen generator.