Tobias A. Teichtmeister, Alexander Hugo Bernhart, Hubert Huppertz
{"title":"High-pressure/high-temperature synthesis, single-crystal structure analysis, and spectroscopic data of γ-Eu(BO2)3 and γ-Gd(BO2)3","authors":"Tobias A. Teichtmeister, Alexander Hugo Bernhart, Hubert Huppertz","doi":"10.1515/znb-2024-0013","DOIUrl":null,"url":null,"abstract":"Orthorhombic crystals of the compounds <jats:italic>γ</jats:italic>-Eu(BO<jats:sub>2</jats:sub>)<jats:sub>3</jats:sub> and <jats:italic>γ</jats:italic>-Gd(BO<jats:sub>2</jats:sub>)<jats:sub>3</jats:sub> were obtained by high-pressure/high-temperature syntheses at 10.5 GPa and 1100 and 900 °C, respectively. The structures were solved by single-crystal X-ray diffraction methods. The two compounds crystallize with four formula units per cell in the space group <jats:italic>Pca</jats:italic>2<jats:sub>1</jats:sub> (no. 29) with the unit cell parameters <jats:italic>a</jats:italic> = 18.2729(7), <jats:italic>b</jats:italic> = 4.4076(2), <jats:italic>c</jats:italic> = 4.2505(1) Å (<jats:italic>Ln</jats:italic> = Eu), and <jats:italic>a</jats:italic> = 18.2591(6), <jats:italic>b</jats:italic> = 4.4055(1), <jats:italic>c</jats:italic> = 4.2477(1) Å (<jats:italic>Ln</jats:italic> = Gd). Their infrared spectra and the luminescence spectrum of <jats:italic>γ</jats:italic>-Eu(BO<jats:sub>2</jats:sub>)<jats:sub>3</jats:sub> are discussed.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-04-20","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-2024-0013","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Orthorhombic crystals of the compounds γ-Eu(BO2)3 and γ-Gd(BO2)3 were obtained by high-pressure/high-temperature syntheses at 10.5 GPa and 1100 and 900 °C, respectively. The structures were solved by single-crystal X-ray diffraction methods. The two compounds crystallize with four formula units per cell in the space group Pca21 (no. 29) with the unit cell parameters a = 18.2729(7), b = 4.4076(2), c = 4.2505(1) Å (Ln = Eu), and a = 18.2591(6), b = 4.4055(1), c = 4.2477(1) Å (Ln = Gd). Their infrared spectra and the luminescence spectrum of γ-Eu(BO2)3 are discussed.
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