Facile synthesis and structure elucidation of metal-organic frameworks with {ZnCa} and {Zn2Ca} metal cores

Abstract

The [ZnCa(DMF)2(tda)2]n·nDMF and [Zn2Ca(fda)4]n·2n(Me2NH2) metal-organic frameworks have been obtained by the reactions of pre-synthesized [Zn2Ca(piv)6(py)2] (piv is pivalate, and py is pyridine) with 2,5-thiophenedicarboxylic (H2tda) and 2,5-furandicarboxylic (H2fda) acids, respectively. Complex [Zn2Ca(piv)6(py)2] was used as a source of secondary building units with binuclear and trinuclear cores to form porous frameworks. The structure and topology of the compounds have been analyzed in detail.