Abstract
The title phospho-nate-based organic-inorganic hybrid framework, poly[bis(dimethylammonium) [(μ(4)-2,5-dihydroxybenzene-1,4-diphosphonato)zinc(II)]], {(C(2)H(8)N)(2)[Zn(C(6)H(4)O(8)P(2))]} (n) , was formed unexpectedly when di-methyl-ammonium cations were formed from the in situ deca-rbonylation of the N,N-di-methyl-formamide solvent. The framework is built up from ZnO(4) tetra-hedra and bridging di-phospho-nate tetra-anions to generate a three-dimensional network comprising [100] channels occupied by the (CH(3))(2)NH(2) (+) cations. Within the channels, an array of N-H⋯O hydrogen bonds help to establish the structure. In addition, intra-molecular O-H⋯O hydrogen bonds between the appended -OH groups of the phenyl ring and adjacent PO(3) (2-) groups are observed.