Organotin-Oxo Clusters with Enhanced π-Conjugation for Iodine Capture

IF 4.3 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-04-02 DOI:10.1021/acs.inorgchem.4c05502

Gui-Xin Yan, Er-Xia Chen, Jin-Xia Yang, Jian Zhang, Qipu Lin

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Abstract

The sustainable development of nuclear energy raises significant challenges in handling radioactive iodine (I₂). Tin-oxo clusters are multimetal aggregates composed of Sn-oxide motifs and surface ligands. Sn^2/4+ ions have a strong affinity for iodine, making tin-oxo clusters promising candidates for trapping I₂. In this work, we constructed two BINOL (=1,1′-binaphthol)-based organotin-oxo clusters with bowl-shaped structures and used them in iodine absorption study. The BINOL-based organotin-oxo clusters demonstrated remarkable performance in an I₂ vapor adsorption experiment, with Sn₆L₄ achieving an adsorption capacity of 1.36 g·g^–1 at 80 °C. Combining experimental characterizations and theoretical calculations, we found that the BINOL-based organotin-oxo clusters interact with iodine through charge transfer interactions and Sn–I bondings. Additionally, the introduction of a butyl group enhances the adsorption capacity by facilitating C–H–I interactions. The research paves the way for the development of tin-oxo cluster-based iodine adsorbents.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.