{"title":"Comprehensive structural evaluation of the quaternary chalcogenide Ag2CdSnSe4","authors":"Kevin D. Profita, Eva M. Heppke","doi":"10.1515/znb-2024-0056","DOIUrl":null,"url":null,"abstract":"In this work, the synthesis of phase-pure Ag<jats:sub>2</jats:sub>CdSnSe<jats:sub>4</jats:sub> by a mechanochemical approach and a subsequent annealing step in an evacuated ampoule is presented. A detailed analysis of the X-ray diffraction pattern of the product revealed the presence of weak reflections, that cannot be observed in the previously proposed crystal structure with space group <jats:italic>Cmc</jats:italic>2<jats:sub>1</jats:sub>. Our structural investigation led to the assumption that Ag<jats:sub>2</jats:sub>CdSnSe<jats:sub>4</jats:sub> crystallizes in the wurtzstannite-type structure with space group <jats:italic>Pmn</jats:italic>2<jats:sub>1</jats:sub> (a structure type derived from <jats:italic>Cmc</jats:italic>2<jats:sub>1</jats:sub>). The aim of this contribution is to discuss the crystal structure of Ag<jats:sub>2</jats:sub>CdSnSe<jats:sub>4</jats:sub> using Rietveld refinements in space group <jats:italic>Cmc</jats:italic>2<jats:sub>1</jats:sub> and its possible subgroups.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"2 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Naturforschung B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/znb-2024-0056","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In this work, the synthesis of phase-pure Ag2CdSnSe4 by a mechanochemical approach and a subsequent annealing step in an evacuated ampoule is presented. A detailed analysis of the X-ray diffraction pattern of the product revealed the presence of weak reflections, that cannot be observed in the previously proposed crystal structure with space group Cmc21. Our structural investigation led to the assumption that Ag2CdSnSe4 crystallizes in the wurtzstannite-type structure with space group Pmn21 (a structure type derived from Cmc21). The aim of this contribution is to discuss the crystal structure of Ag2CdSnSe4 using Rietveld refinements in space group Cmc21 and its possible subgroups.
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