Organotin-Oxo Clusters with Enhanced π-Conjugation for Iodine Capture
Gui-Xin Yan1,2,3, Er-Xia Chen1,3, Jin-Xia Yang1
1State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
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. Sn2/4+ 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.
More Related Videos
12:27Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
10:14Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
Related Concept Videos
01:13Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
02:34Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
02:51Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
01:23Redox Titration: Iodimetry and Iodometry
02:42Valence Bond Theory
02:27Predicting Molecular Geometry