Abstract
A new layered ammonium cobalt−zinc phosphate has been synthesized under solvothermal conditions at 160 °C and the structure solved using room-temperature single-crystal X-ray diffraction data. (NH4[Zn2-xCox(PO4)(HPO4)] (x ≈ 0.12), Mr = 339.75, triclinic, space group P-1, a = 5.237(1) A, b = 8.949(1) A3, c = 9.728(1) A, α = 74.99(1)°, β = 77.64(1)°, γ = 72.92(1)°, V = 416.19(1) A3, Z = 2, 1511 observed data measured with I > 3σ(I), R = 4.31% and Rw = 4.67%). The structure consists of MO4 (M = Zn, Co), PO4, and PO3(OH) tetrahedra linked to form buckled layers containing three- and four-membered rings between which ammonium cations reside. A network of hydrogen bonds involving both interlayer and layer-to-ammonium interactions holds the phosphate layers together.
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