The present work for the first time introduces PDA-based vesicles as convenient supporters of luminescent water insoluble Tb³⁺ complexes. The specific cyclophanic structure of the ligands, where upper and lower calix[4]arene rims are decorated by nonyl- and chelating groups correspondingly provides both complex formation with Tb³⁺ ions with the coordination of the latter via two 1,3-diketonate groups and self- or mixed aggregation of the complexes. The conditions of the self-aggregation of the Tb³⁺ complexes are revealed, although the self-aggregates are unstable being converted into the nanosized precipitates which tend to further aggregation and phase separation. The complexes exhibit Tb(III)-centered luminescence which tends to change in time following the phase separation processes. The embedding of the Tb³⁺ complexes into the PDA-based vesicles results in the mixed aggregates with significant Tb(III)-centered luminescence and significant colloidal stability. The latter arises from high negative electrokinetic potential values due to exterior carboxylic/carboxylate groups of the PDA vesicles.

本工作首次介绍了基于PDA的囊泡，作为方便的发光水不溶性Tb ³⁺复合物的支持物。配体的特定环空结构，其中上杯和下杯[4]芳烃边缘由壬基和螯合基团修饰，分别提供了与Tb ³⁺离子的复合形成，并通过两个1,3-二酮基进行配位以及复合物的自聚集或混合聚集。Tb ³⁺自聚集的条件揭示了复合物，尽管自聚集体不稳定地转变成纳米级沉淀物，其倾向于进一步聚集和相分离。该配合物表现出以Tb（III）为中心的发光，该发光在相分离过程后会随时间变化。Tb ³⁺复合物嵌入基于PDA的囊泡中导致混合的聚集体具有显着的以Tb（III）为中心的发光和显着的胶体稳定性。后者是由于PDA囊泡的外部羧酸/羧酸根基团引起的负电动势高而引起的。