Reticular chemistry guided single-linker constructed pillar-layered metal-organic frameworks an "one-pot" strategy

• Published in: Dalton transactions : an international journal of inorganic chemistry 2024-08, Vol.53 (32), p.1332-13325
• Main Authors: Ma, Zhen-Sha, Yang, Hui, Xing, Kai, Zhou, Kang, Lu, Gonghao, Liu, Xiao-Yuan
• Format: Article
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/d4dt01729c

In the present work, we report a "two-in-one" strategy to construct single-linker-based pillar-layered metal-organic frameworks (PL-MOFs) guided by reticular chemistry via an in situ "one-pot" approach. Two carboxyl groups and one pyridine group are integrated into one molecular skeleton to form bifunctional organic linkers via the reaction of pyridine-containing aldehyde and bicarboxylate-containing o -phenylenediamine. During the synthesis of organic linkers, two zinc-based PL-MOFs, non-interpenetrated HIAM-3016-op and two-fold interpenetrated HIAM-3017-op, can be simultaneously constructed. The different interpenetrations for these two PL-MOFs can be attributed to the increased length of the pyridine-containing moiety. HIAM-3017-op can be utilized for Cr 2 O 7 2− detection with excellent sensitivity and selectivity. The present work not only provides a novel insight to design and prepare PL-MOFs with specific structures guided by reticular chemistry, but also indicates the universality of the in situ "one-pot" strategy to construct porous materials. Two pillar-layered MOFs, non-interpenetrated HIAM-3016-op and two-fold interpenetrated HIAM-3017-op, are successfully constructed by integrating two carboxylate groups and one pyridine group into one linker skeleton via an in situ "one-pot" strategy.