“…Herein, an ew anionic porphyrinylphosphonate-based MOF (IPCE-1Ni), which involves dimethylammonium( DMA)c ations for charge compensation, is reported.A saresult of its uniques tructure, IPCE-1Ni exhibits one of the highest value of the protonc onductivity among reported proton-conducting MOF materials based on porphyrins (1.55 10 À3 Scm À1 at 75 8Ca nd 80 %r elative humidity).Metal-organic frameworks (MOFs) are porous materials possessing au nique set of tunable parameters, which are successfully applied in the processes of sorption, storage and separation of various gases, [1][2][3] in luminescence and photonic devices, [4,5] catalysis, [6][7][8] and medicine. [9][10][11] Their functionality is also of great interestf or the development of approaches towards new sources of alternative energy,i ncludingproton-conducting materials. [12,13] An advantage of using MOFs as protonc onductors determinedb yt he high crystallinity of such materials, which makes it possible to identify and simulate the possible protonh opping and conduction pathways.…”