{"title":"Synthesis of {AlMo<sub>14</sub>O<sub>44</sub>}-Based Supramolecular Structures with High Proton Conductivity.","authors":"Wei-Bo Ren, Bo Li, Yunzuo Cui, Xinyu Chen, Qianqian Liu, Yongzhen Chen, Zhen Chen, Yuyang Wang, Hong-Ying Zang","doi":"10.1021/acs.inorgchem.4c01535","DOIUrl":null,"url":null,"abstract":"<p><p>Polyoxometalates (POMs) are esteemed for their remarkable stability and exceptionally high proton conductivity, rendering them ripe for extensive exploration owing to their research significance. Herein, we synthesized two bimolybdenum-capped {AlMo<sup>VI</sup><sub>8</sub>Mo<sup>V</sup><sub>6</sub>O<sub>44</sub>} cluster-based coordination polymers through a solvothermal method. Single-crystal X-ray diffraction analysis elucidates that H[(H<sub>2</sub>bimb)<sub>3</sub>(AlMo<sup>VI</sup><sub>8</sub>Mo<sup>V</sup><sub>6</sub>O<sub>44</sub>)] [bimb = 1,4-bis(imidazole-1-ylmethyl)benzene, compound <b>1</b>] is the POMs-organic supramolecular structure. The introduction of zinc ions into the reaction environment facilitated the connection of initially dispersed ligands, which yielded the well-ordered structure H<sub>3</sub>[Zn<sub>2</sub>(bimb)<sub>4</sub>(AlMo<sup>VI</sup><sub>8</sub>Mo<sup>V</sup><sub>6</sub>O<sub>44</sub>)]·4H<sub>2</sub>O (compound <b>2</b>) with a layer distance of 11.8 Å. The proton conductivities (σ) of two compounds were measured under conditions of 85 °C and 98% relative humidity (RH), resulting in values of 3.89 × 10<sup>-2</sup> and 4.76 × 10<sup>-2</sup> S·cm<sup>-1</sup>, respectively. This study presents a novel approach to fabricating POMs as proton conductors through structural design and manufacturing adjustments.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.inorgchem.4c01535","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Polyoxometalates (POMs) are esteemed for their remarkable stability and exceptionally high proton conductivity, rendering them ripe for extensive exploration owing to their research significance. Herein, we synthesized two bimolybdenum-capped {AlMoVI8MoV6O44} cluster-based coordination polymers through a solvothermal method. Single-crystal X-ray diffraction analysis elucidates that H[(H2bimb)3(AlMoVI8MoV6O44)] [bimb = 1,4-bis(imidazole-1-ylmethyl)benzene, compound 1] is the POMs-organic supramolecular structure. The introduction of zinc ions into the reaction environment facilitated the connection of initially dispersed ligands, which yielded the well-ordered structure H3[Zn2(bimb)4(AlMoVI8MoV6O44)]·4H2O (compound 2) with a layer distance of 11.8 Å. The proton conductivities (σ) of two compounds were measured under conditions of 85 °C and 98% relative humidity (RH), resulting in values of 3.89 × 10-2 and 4.76 × 10-2 S·cm-1, respectively. This study presents a novel approach to fabricating POMs as proton conductors through structural design and manufacturing adjustments.
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.