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{"title":"Organoamine-Directed Assembly of 5p–4f HeterometallicnCluster Substituted Polyoxometalates: Luminescence and Proton ConductionnProperties","authors":"Hui-Ping Xiao (11337390), Rong-Tao Zhang (7517072), Zhong Li (324520), Yu-Feng Xie (4383742), Min Wang (21070), Yi-Da Ye (11337393), Cai Sun (3704974), Yan-Qiong Sun (2321434), Xin-Xiong Li (2255449), Shou-Tian Zheng (1693795)","doi":"10.1021/acs.inorgchem.1c02099.s001","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.1c02099.s001","url":null,"abstract":"The assembly of heterometallic clusternsubstituted polyoxometalatesn(POMs) remains a great challenge for inorganic synthetic chemistrynup to now. Herein, a series of 5p–4f heterometallic clusternsubstituted POMs were successfully isolated by a facile one-step hydrothermalnreaction method, namely H<sub>17</sub>(H<sub>2</sub>en)<sub>3</sub>[Sb<sup>III</sup><sub>9</sub>Sb<sup>V</sup>Ln<sub>3</sub>O<sub>14</sub>(H<sub>2</sub>O)<sub>3</sub>]­[(SbW<sub>9</sub>O<sub>33</sub>)<sub>3</sub>(PW<sub>9</sub>O<sub>34</sub>)]·28H<sub>2</sub>O­(<b>1-Ln</b>, Ln = Ce, Sm, Eu, Gd, Tb, Dy) (en = ethylenediamine).nInterestingly, by replacing en with imidazole, another series of 5p–4fnheterometallic cluster substituted POMs H<sub>13</sub>(HIm)<sub>4</sub>K<sub>2</sub>Na<sub>4</sub>(H<sub>2</sub>O)<sub>9</sub>[Sb<sup>III</sup><sub>9</sub>Sb<sup>V</sup>Ln<sub>3</sub>O<sub>14</sub>(H<sub>2</sub>O)<sub>3</sub>]­[(SbW<sub>9</sub>O<sub>33</sub>)<sub>3</sub>(PW<sub>9</sub>O<sub>34</sub>)]·26H<sub>2</sub>O (<b>2-Ln</b>,nLn = Sm, Eu, Gd, Tb, Dy, Im = imidazole) were obtained. Structuralnanalyses indicate that both <b>1-Ln</b> and <b>2-Ln</b> are made up of an unprecedented 5p–4f heterometallic {Sb<sub>10</sub>Ln<sub>3</sub>O<sub>14</sub>(H<sub>2</sub>O)<sub>3</sub>}ncluster stabilized simultaneously by mixed trilacunary heteropolyanionsnincluding {A-α-PW<sub>9</sub>O<sub>34</sub>} and {B-α-SbW<sub>9</sub>O<sub>33</sub>}. Impedance measurements indicate that bothncompounds exhibit different proton conduction properties, and thenconductivity of <b>2</b> can reach up to 1.64 × 10<sup>–2</sup> S cm<sup>–1</sup> at 85 °C under 98%nrelative humidity. Moreover, the fluorescence emission behaviors ofnboth compounds have been studied.","PeriodicalId":522092,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}