Synthesis and characterization of the new microporous fluorogallophosphate Mu-2 with a novel framework topology

ULM-18, a Fluorinated Gallium Phosphate with Perforated Layers: XRD and NMR, Structure Determination, and HF Localization in a D4R

“…3,15,17,22,[31][32][33][34][35][36][37][38][39][40][41] AlPO 4 -16 31 and CoAPO-50 (AFY) 40 are reported to be able to be synthesized without fluorides. They are described as being without an ion inside the D4R unit of the structure.…”

Crystalline oxyfluorinated open-framework compounds: Silicates, metal phosphates, metal fluorides and metal-organic frameworks (MOF)

“…The LTA-type GaPO 4 [55] (Fig. 3) or the gallium phosphates Mu-1 [56], Mu-2 [57], Mu-3 [58], Mu-5 [59] and Mu-15 [60] were obtained by the group of Mulhouse (Patarin) and all these frameworks include the D4R units hosting a fluoride atom. Such a cubic building block was also described in other GaPO 4 solids reported by Morris [61] and Hong [62].…”

Fluoride‐Ion Encapsulation within a Silsesquioxane Cage

“…The SiÀF coordination is expected to be greater in these silicate structures since there is a SiÀO bond apical to the fluoride ion, and thus the peak in the 19 F NMR spectrum should be shifted to a lower frequency compared to a naked fluoride ion. The 19 F chemical shift of a fluoride ion encapsulated in a D4R alumino-or gallophosphate cage in molecular sieves are observed further downfield at d = À69 to À95 ppm, [21][22][23] although the 19 F chemical shift of the fluoride ion encapsulated in the germanium oxide D4R cage occurs at d = À15 ppm. [15] In conclusion, we have prepared the first fluoride ion to have been encapsulated in a silsesquioxane cage.…”