State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Mater, Chinese Academy of Sciences, Fuzhou, 350002, Fujian, China.
Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA.
Angew Chem Int Ed Engl. 2017 Nov 13;56(46):14622-14626. doi: 10.1002/anie.201709186. Epub 2017 Oct 17.
A series of flexible MOFs (PCN-605, PCN-606, and PCN-700) are synthesized and applied to reversible bromine encapsulation and release. The chemical stability of these Zr-MOFs ensures the framework's integrity during the bromine adsorption, while the framework's flexibility allows for structural adaptation upon bromine uptake to afford stronger host-guest interactions and therefore higher bromine adsorption capacities. The flexible MOFs act as bromine-nanocontainers which elongate the storage time of volatile halides under ambient conditions. Furthermore, the bromine pre-adsorbed flexible MOFs can be used as generic bromine sources for bromination reactions giving improved yields and selectivities under ambient conditions when compared with liquid bromine.
一系列柔性 MOF（PCN-605、PCN-606 和 PCN-700）被合成并应用于可逆溴的封装和释放。这些 Zr-MOF 的化学稳定性确保了骨架在溴吸附过程中的完整性，而骨架的柔韧性允许在吸收溴时进行结构适应，从而提供更强的主客体相互作用，因此具有更高的溴吸附能力。柔性 MOF 作为溴纳米容器，延长了挥发性卤化物在环境条件下的储存时间。此外，预吸附溴的柔性 MOF 可用作溴化反应的通用溴源，与液体溴相比，在环境条件下可提高产率和选择性。
