title: Entrapment of metal clusters in metal-organic framework channels by extended hooks anchored at open metal sites.
abstract: Reported here are the new concept of utilizing open metal sites (OMSs) for architectural pore design and its practical implementation. Specifically, it is shown here that OMSs can be used to run extended hooks (isonicotinates in this work) from the framework walls to the channel centers to effect the capture of single metal ions or clusters, with the concurrent partitioning of the large channel spaces into multiple domains, alteration of the host-guest charge relationship and associated guest-exchange properties, and transfer of OMSs from the walls to the channel centers. The concept of the extended hook, demonstrated here in the multicomponent dual-metal and dual-ligand system, should be generally applicable to a range of framework types.
authors.affiliation: Department of Chemistry and Biochemistry, California State University, Long Beach, California 90840, United States.
authors.forename: Shou-Tian
authors.initials: ST
authors.lastname: Zheng
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhao
authors.forename: Samuel
authors.initials: S
authors.lastname: Lau
authors.forename: Addis
authors.initials: A
authors.lastname: Fuhr
authors.forename: Pingyun
authors.initials: P
authors.lastname: Feng
authors.forename: Xianhui
authors.initials: X
authors.lastname: Bu
mesh_terms: D003035:Cobalt / Q000737:chemistry; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000737:chemistry
chemical_list: D009942:Organometallic Compounds; D014867:Water; D003035:Cobalt; D015032:Zinc