New open-framework phosphate and phosphite compounds of gallium

DMAP-Induced Gallium Phosphites with Different Dimensionality

“…Consequentially, the various dimensional crystal structures of Ga-3 , Ga-2 , and Ga-1 are thus determined, all of which possess structures constructed from the Ga-based octahedra, the pseudopyramidal phosphite groups, and the organic DMAP molecules. The bond lengths of the inorganic species in Ga-3 , Ga-2 , and Ga-1 all agree well with those from other gallium phosphites. ,− …”

“…To the best of our knowledge, Ga-3 is the first gallium phosphite with extra-large 14R channels, whose dumbbell-shaped channel window is shown in Figure c. Meanwhile, the particular 9/14 ratio of Ga/P in Ga-3 is also obtained in a single phase for the first time. ,− ,− Similar to PKU-25Al, numerous clover-like chiral 41 units (Figure S2a) as well as chiral channel motifs (Figure S2b) also exist and are alternately arranged . The protonated DMAP molecules reside in a disordered arrangement in the locations near the 14R-channel windows and interact with each other and the inorganic framework through π–π interaction and hydrogen bonding, respectively (Figure S2c), which are further distributed in the channel voids of Ga-3 with a rare triangular pattern (Figure S2d).…”

“…Although only a very limited number of open-framework gallium phosphites with 10R or 12R channels have been reported in the last 30 years, − unfortunately, there is only one extra-large-channel gallium phosphite so far, i.e., NTHU-15 with 18R channels . Moreover, besides those small number of 3D open-framework members mentioned above, the gallium phosphites with lower dimensions, such as the 2D layers and 1D chains, are even more scarce.…”

Single-crystal XRD and solid-state NMR structural resolution of a layered fluorinated gallium phosphate: RbGa3(PO4)2(HPO4)F4·C5N2H16·2H2O (MIL-145)

“…The utilization of this diamine has been previously mentioned in the synthesis of the fluorinated gallium phosphate ULM-3. [64][65][66] This compound possesses a threedimensional framework containing channels delimited by ten polyhedra, which can be obtained with the shorter linear diamines, 1,3-diaminopropane (C 3 ) 64,67 and 1,4-diaminopropane (C 4 ). 64 Indeed, rubidium can partially substitute the C 3 diamine, in the ULM-3 structure type, 28 but in the case of longer diamines, a new structure type is formed with the C 5 molecule.…”

High proton conductivity behavior in a 2D metal sulfite constructed from a histidine ligand

“…In addition, they provide theoretical guidance for the synthesis of new proton-conducting materials because the crystalline nature of crystalline porous materials provides an opportunity to study the protonconduction pathway and mechanism. [7][8][9][10][11] Inorganic open-framework materials based on oxyanions, such as phosphates, 12,13 phosphites, [14][15][16] and sulfates, 17,18 exhibit well-dened pore architectures and variable framework compositions. On the one hand, proton carriers (e.g., H 3 O + , NH 4 + , imidazole, H 2 O and -COOH) can be easily introduced into their free voids or in their frameworks, which is an effective approach to prepare high performance proton-conducting materials.…”