Synthesis and crystal structure of a 3-D zinc phosphate, [C5N2H14][Zn2(PO3(OH))3], containing (4.8) net sheets

Abstract

A new 3-D zinc phosphate, [C 5 N 2 H 14 ][Zn 2 (PO 3 (OH)) 3 ], has been synthesised under solvothermal conditions in the presence of 1-methylpiperazine. The structure, determined by single-crystal X-ray diffraction at 293 K (RMM = 520.9, orthorhombic, space group P2 1 2 1 2 1 ; a = 10.0517(2) Å, b =10.4293(2) Å and c = 14.9050(5) Å; V = 1562.52 Å 3 ; Z = 4; R(F) = 2.60%, wR(F) = 2.93%), consists of vertex linked ZnO 4 and PO 3 (OH) tetrahedra assembled into (4.8) net sheets which in turn are linked through further PO 3 (OH) units to generate a 3-D framework. 1-Methylpiperazinium cations reside within the 3-D channel system, held in place by a strong network of hydrogen bonds. The (4.8) net sheets occur in a number of zeolite structures e.g. ABW and GIS and related zinc phosphate phases. To cite this articles: F.