Abstract

A new 1D fluorogallophosphate, Ga(PO₄H)₂F[N₂C₆H₁₄], was synthesized solvothermally using 1,4-diazabicyclo[2.2.2]octane (DABCO) as a templating agent. The structure was determined ab initio from X-ray powder diffraction data. It crystallizes in the orthorhombic space group P2₁2₁2₁, with a = 14.8725(9) Å, b = 12.0132(7) Å, c = 7.0700(6) Å, V = 1263 Å³ and Z = 4. The 1D structure contains discrete inorganic chains built-up by fluorine sharing GaO₄F₂ octahedra, corner linked by bridging PO₄H tetrahedra. These chains, similar to those found in tancoite type minerals, are linked to each other via hydroxy groups and via hydrogen bonding with the ammonium groups of the doubly protonated DABCO molecules.