Abstract

A novel gallophosphate [Ga 13(PO 4) 18(C 6H 14N) 13(C 6H 13N)•2H 3O +•3H 2O] was synthesized using cyclohexylformamide as main solvent. The structure-directing agent is the cyclohexylamine which is generated in situ by thermal decomposition of the solvent. The structure was solved by single-crystal X-ray diffraction (space group P - 3 , a = 16.605 ( 14 ) Å , c = 17.22 ( 2 ) Å , Z = 1 , V = 4112 ( 6 ) Å 3 ). The 2D structure of Mu-30 is built up from (4,6) layers constituted of PO 4 tetrahedra sharing three of their oxygen atoms with one GaO 6 octahedron and two GaO 4 tetrahedra. Monoprotonated cyclohexylamine, water molecules and H 3O + ion are intercalated between the layers. Characterizations of this new gallophosphate by bulk chemical analysis, scanning electron microscopy, thermal analysis, and 13C and 31P solid state NMR spectroscopies are also reported.

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