Flexibility in DUT-8(Cu)Metal-Organic Framework:Impact of Cluster,Stress,History,and Hierarchical Texture  

作　　者：Mariia Maliuta Irena Senkovska Vitaliy Romaka Mariia Roslova Zhehao Huang Petko Petkov Volodymyr Bon Stefan Kaskel 

机构地区：[1]Chair of Inorganic Chemistry I,Technische Universität Dresden,D-01069 Dresden [2]Leibniz Institute for Solid State Research(IFW Dresden),01069 Dresden [3]Department of Materials and Environmental Chemistry,Stockholm University,SE-10691 Stockholm [4]Faculty of Chemistry and Pharmacy,Department of Organic Chemistry and Pharmacognosy,Sofia University“St.Kl.Ohridski”,1164 Sofia

出　　处：《CCS Chemistry》2023年第10期2225-2236,共12页中国化学会会刊（英文）

基　　金：made possible as a result of a generous grant from the German Research Foundation(grant no.279409724).

摘　　要：The flexibility of metal-organic frameworks(MOFs)featuring stimuli-responsive structural transitions is often governed not only by the chemical composition and topology but also by orthogonal factors such as particle size,desolvation method,and history of the sample.A precise understanding of the mechanism behind such observations has been lacking up to now,and there are still substantial open questions concerning the impact of sample treatment history.The DUT-8(M)family([M_(2)(2,6-ndc)2(dabco)]n,2,6-ndc=2,6-naphthalene dicarboxylate,dabco=1,4-diazabicyclo-[2.2.2]-octane),encompasses isostructural compounds based on Ni,Zn,Co,and Cu in the cluster node and is representative of pillared layer MOFs,often showing flexible behavior.In this contribution,we discuss a possible explanation for the differences in flexibility observed in desolvated phases of DUT-8(Cu).Theoretical calculations and crystallographic data shed light on the preferred formation of interpenetrated confined closed pore phases in DUT-8(Cu)in contrast to DUT-8(Ni,Co,Zn)where the closed pore phases are formed.

关 键 词：pillared layer metal-organic frameworks flexible behavior phase transition MESOSTRUCTURE TEXTURE gas adsorption 

分 类 号：O641.4[理学—物理化学]