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- Title
Crystalline Capsules: Metal-Organic Frameworks Locked by Size-Matching Ligand Bolts.
- Authors
Hao Wang; Jian Xu; Da-Shuai Zhang; Qiang Chen; Rong-Mei Wen; Ze Chang; Xian-He Bu
- Abstract
Metal-organic frameworks (MOFs) are shown to be good examples of a new class of crystalline porous materials for guest encapsulation. Since the encapsulation/release of guest molecules in MOF hosts is a reversible process in nature, how to prevent the leaching of guests from the open pores with minimal and nondestructive modifications of the structure is a critical issue. To address this issue, we herein propose a novel strategy of encapsulating guests by introducing size-matching organic ligands as bolts to lock the pores of the MOFs through deliberately anchoring onto the open metal sites in the pores. Our proposed strategy provides a mechanical way to prevent the leaching of guests and thereby has less dependence on the specific chemical environment of the hosts, thus making it applicable for a wide variety of existing MOFs once the size-matching ligands are employed.
- Subjects
CRYSTALLINE polymers; METAL-organic frameworks; POROUS materials; ENCAPSULATION (Catalysis); LIGANDS (Chemistry)
- Publication
Angewandte Chemie International Edition, 2015, Vol 54, Issue 20, p5966
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201500468