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Abstract <p>New mixed-ligand organometallic frameworks based on zinc terephthalate (bdc), 2‑iodoterephthalate (bdc-I), and 1,4-diazabicyclo[2.2.2]octane (dabco) were obtained: [Zn<sub>2</sub>(bdc)<sub>1.67</sub>(bdc-I)<sub>0.33</sub>dabco] (<b>I</b>), [Zn<sub>2</sub>(bdc)<sub>1.46</sub>(bdc-I)<sub>0.54</sub>dabco] (<b>II</b>), [Zn<sub>2</sub>(bdc)<sub>1.12</sub>(bdc-I)<sub>0.88</sub>dabco] (<b>III</b>), [Zn<sub>2</sub>(bdc)<sub>0.80</sub>(bdc-I)<sub>1.2</sub>dabco] (<b>IV</b>), [Zn<sub>2</sub>(bdc)<sub>0.46</sub>(bdc-I)<sub>1.54</sub>dabco] (<b>V</b>). Their structures and composition were determined by single-crystal and powder X-ray diffraction, as well as elemental analysis. Compounds <b>I–V</b> are isostructural with [Zn<sub>2</sub>(bdc)<sub>2</sub>(dabco)], but not with [Zn<sub>2</sub>(bdc-I)<sub>2</sub>(dabco)], which we have not described previously, which is confirmed by X-ray powder diffraction 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<sub>2</sub> is absorbed by <b>I</b>, and the smallest by is absorbed <b>V</b>.</p>

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Crystal Structures and Properties of Metal-Organic Coordination Polymers [Zn2(bdc)x(bdc-I)(2–x)dabco]

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • A. S. Zaguzin,
  • Ya. A. Zaitsev,
  • A. V. Zaitsev,
  • N. A. Korobeynikov,
  • M. A. Bondarenko,
  • E. A. Maksimovskii,
  • V. P. Fedin,
  • S. A. Adonin

摘要

Abstract

New mixed-ligand organometallic frameworks based on zinc terephthalate (bdc), 2‑iodoterephthalate (bdc-I), and 1,4-diazabicyclo[2.2.2]octane (dabco) were obtained: [Zn2(bdc)1.67(bdc-I)0.33dabco] (I), [Zn2(bdc)1.46(bdc-I)0.54dabco] (II), [Zn2(bdc)1.12(bdc-I)0.88dabco] (III), [Zn2(bdc)0.80(bdc-I)1.2dabco] (IV), [Zn2(bdc)0.46(bdc-I)1.54dabco] (V). Their structures and composition were determined by single-crystal and powder X-ray diffraction, as well as elemental analysis. Compounds I–V are isostructural with [Zn2(bdc)2(dabco)], but not with [Zn2(bdc-I)2(dabco)], which we have not described previously, which is confirmed by X-ray powder diffraction 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 I2 is absorbed by I, and the smallest by is absorbed V.