A series of lanthanide metal-organic frameworks (Ln-MOFs) were synthesized and structural characterized. These include the three-dimensional frameworks of {[Ln(C4H4O6)(H2O)3]ClO4*H2O}n (Ln= Nd and La) and {[Ln(C4H4O6)(H2O)3]Cl*2H2O}n (Ln= Ce3+, and Pr3+) with hydrophilic pore structures, and the two dimensional {[Ln(C4H4O6)3(H2O)5]*4H2O}n (Ln= Ce and Pr) featuring intercalated water molecules between the hydrophilic layers. Proton conductivities of these Ln-MOFs were measured. The extensive hydrogen bonding interactions involving the encapsulated water molecules are believed to be responsible for the observed proton conduction, likely via the Grotthuss mechanism.

Lanthanide metal-organic frameworks for proton conduction

255th National Meeting (2018)

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