Reveals structural and sorption properties of zinc-based coordination polymers, indicating design strategies for materials.
New mixed-ligand organometallic coordination polymers based on zinc terephthalate (bdc), 2-iodoterephthalate (bdc-I) and 1,4-diazabicyclo[2.2.2]octane (dabco) were obtained: [Zn(bdc)(bdc-I)dabco] (I), [Zn(bdc)(bdc-I)dabco] (II), [Zn(bdc)(bdc-I)dabco] (III), [Zn(bdc)(bdc-I)dabco] (IV), [Zn(bdc)(bdc-I)dabco] (V). Their structure and composition were determined by X-ray diffraction, X-ray phase, and elemental analysis. Compounds I–V are isostructural with [Zn(bdc)(dabco)], but not with [Zn(bdc-I)(dabco)], which we have not described previously, which is confirmed by X-ray phase analysis data. Experiments on the sorption of diiodine vapors are consistent with the idea that the presence of a larger amount of 2-iodoterephthalate in the MOF should lead to a decrease in pore volume: the greatest amount of I is absorbed by I, and the smallest by V.
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A.S. Zaguzin (2025) studied this question.
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