The title compound, N,N,N',N'- tetramethylethylenediammonium diaqua(arsenat
e)(hydrogen arsenate)dizinc(II), (C6H18N2)(0.5)[Zn-2 (AsO4)(HAsO4)(H2O)(2)]
, is a new zincoarsenate obtained by hydrothermal synthesis. The structure
consists of infinite two-dimensional anionic layers alternating with planes
containing centrosymmetric organic diprotonated template N,N,N',N'-tetrame
thylethylenediammonium cations, [H3NC6 H12NH3](2+). The latter are intercon
nected to the framework through hydrogen bonds.