Anion-induced 3d-4f luminescent coordination clusters: structural characteristics and chemical fixation of CO2 under mild conditions
Anion-induced 3d-4f luminescent coordination clusters: structural characteristics and chemical fixation of CO2 under mild conditions
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阴离子诱导的3d-4f发光配位簇：温和条件下CO2的结构特征和化学固定
DOI：
10.1039/c8dt01292j
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发表时间：
2018
影响因子：
4
通讯作者：
Liu Weisheng
中科院分区：
文献类型：
--
作者：
Zhang Ruilian;Wang Li;Xu Cong;Yang Huan;Chen Wanmin;Gao Guoshu;Liu Weisheng
合成并表征了两个系列的基于μ3-OH基团的阴离子诱导的3D-4F发光簇合物：ZnII2LnIII2L4(LnIII=Eu3+，Tb3+，Er3+，Yb3+，Nd3+)和Zn4LnIII2L4(LnIII=Tb3+，Nd3+)。阴离子的不同不仅导致了显著的结构变化，而且还改变了3D-4f配位团簇的发光性质。在温和的反应条件下，这些配合物对CO2的转化表现出了良好的催化性能，得到了底物范围宽、选择性高的环状碳酸酯。最大周转次数达9000次，最大周转频率为660h−1，且配体简单，即使大规模合成也很容易。此外，这些配合物还具有稀土元素特征的可见光和近红外发光，具有相对较长的发光寿命和较高的量子产率，具有广阔的多功能应用前景。
Two series of anion-induced 3d–4f luminescent clusters ZnII2LnIII2L4 (LnIII = Eu3+, Tb3+, Er3+, Yb3+, Nd3+) and ZnII4LnIII2L4 (LnIII = Tb3+, Nd3+) based on μ3-OH group were synthesized and characterized. The difference in anions not only leads to significant structural changes, but also changes the luminescent properties of the 3d–4f coordination clusters. These complexes show excellent catalytic performance for CO2 conversion to obtain cyclic carbonates with wide substrate scopes and high selectivity under mild conditions. Turnover numbers were up to 9000, and turnover frequencies obtained were 660 h−1. The ligand is simple and the complexes are easily obtained even on a large scale. Moreover, these complexes also feature lanthanide-characterized luminescence both in visible and near infrared regions with relatively long luminescence lifetimes and high quantum yields, suggesting promising multifunctional applications.