Zinc dimethyl phosphate, Zn[O2P(OCH3)2]2, a one-dimensional inorganic polymer

Abstract

The synthesis, single-crystal X-ray structure and some properties of Zn[O₂P(OCH₃)₂]₂, a new ‘polymeric’ zinc dimethyl phosphate, are described. This hydrothermally prepared material consists of infinite one-dimensional chains of vertex-linked ZnO₄ and PO₄ tetrahedra forming ‘4-rings’: two of the phosphate P—O vertices are coordinated to methyl (—CH₃) groups and the crystal packing perpendicular to the Zn/P/O chains is determined by van der Waals forces between these terminal organic groups. Powder X-ray and ¹H and ³¹P MAS NMR data for Zn(O₂P(OCH₃)₂)₂, are also presented.

Crystal data: Zn[O₂P(OCH₃)₂]₂, M_r= 630.92, monoclinic, space group Pc(No. 7), a= 9.354 (1)Å, b= 10.536 (2)Å, c= 12.013 (2)Å, β= 90.920 (5)°, V= 1183.70ų, ρ_calc= l.77 g cm^–3, µ= 24.07 cm^–1, Z= 2, R(F)= 5.41%, 2781 observed reflections [I > 3σ(I)].