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

IF 1.5 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2025-09-30 DOI:10.1134/S0036023625601436

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

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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.

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金属-有机配位聚合物[Zn2(bdc)x(bdc- i)(2-x)dabco]的晶体结构与性能

以对苯二甲酸锌（bdc）、2 -碘对苯二甲酸酯（bdc-I）和1,4-重氮比环[2.2.2]辛烷（dabco）为基础，合成了新的混合配体有机金属骨架：[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)。通过单晶和粉末x射线衍射以及元素分析确定了它们的结构和组成。化合物I-V与[Zn2(bdc)2(dabco)]是同构的，而与[Zn2(bdc- i)2(dabco)]不是同构的，这是我们以前没有描述过的，这是由x射线粉末衍射数据证实的。二碘蒸气的吸附实验与MOF中2-碘对苯二甲酸盐的存在量越大导致孔体积减小的观点是一致的：I2被I吸收的量最大，V被V吸收的量最小。

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.