Author/Authors :
Soriano, Josemaria S. Department of Chemistry and Biochemistry, USA , Galeas, Bryan E. Department of Chemistry and Biochemistry, USA , Garrett, Paul Department of Chemistry and Biochemistry, USA , Flores, Ryan A. Department of Chemistry and Biochemistry, USA , Pinedo, Juan L. Department of Chemistry and Biochemistry, USA , Kohlgrube, Tsuyoshi A. Department of Civil and Environmental Engineering and Earth Sciences - University of Notre Dame, USA , Felton, Daniel Department of Chemistry and Biochemistry - University of Notre Dame, USA , Adelani, Pius O. Department of Chemistry and Biochemistry, USA
Abstract :
The title phosphonate-based organic–inorganic hybrid framework, poly[bis(dimethylammonium) [(μ4-2,5-dihydroxybenzene-1,4-diphosphonato)zinc(II)], {(C2H8N)2[Zn(C6H4O8P2)]}n, was formed unexpectedly when dimethylammonium cations were formed from the in situ decarbonylation of the N,N-dimethylformamide solvent. The framework is built up from ZnO4 tetrahedra and bridging diphosphonate tetra-anions to generate a three-dimensional network comprising [100] channels occupied by the (CH3)2NH2+ cations. Within the channels, an array of N—H⋯O hydrogen bonds help to establish the structure. In addition, intramolecular O—H⋯O hydrogen bonds between the appended –OH groups of the phenyl ring and adjacent PO32− groups are observed.
Keywords :
hydrogen bonding , inorganic–organic hybrid framework , crystal structure , phosphonic acid , decarbonylation
