Crystal Structures and Property Measurements of Rare Earth Magnesium Thiosilicates Synthesized via Flux Crystal Growth Utilizing the Boron Chalcogen Mixture (BCM) Method

Nine new rare earth magnesium-containing thiosilicates of the formula RE3Mg0.5SiS7 (Ln = Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er) were synthesized in an alkali halide flux using the boron chalcogen mixture (BCM) method. Crystals of high quality were produced, and their structures were determined by singl...

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Published inInorganic chemistry Vol. 62; no. 19; pp. 7446 - 7452
Main Authors King, Adam A., Breton, Logan S., Morrison, Greg, Smith, Mark D., Liang, Mingli, Halasyamani, P. Shiv, zur Loye, Hans-Conrad
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 15.05.2023
American Chemical Society (ACS)
Subjects
Chemistry
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Summary:Nine new rare earth magnesium-containing thiosilicates of the formula RE3Mg0.5SiS7 (Ln = Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er) were synthesized in an alkali halide flux using the boron chalcogen mixture (BCM) method. Crystals of high quality were produced, and their structures were determined by single-crystal X-ray diffraction. The compounds crystallize in the hexagonal crystal system in the P63 space group. Phase pure powders of the compounds were used for magnetic susceptibility measurements and for second-harmonic generation (SHG) measurements. Magnetic measurements indicate that Ce3Mg0.5SiS7, Sm3Mg0.5SiS7, and Dy3Mg0.5SiS7 exhibit paramagnetic behavior with a negative Weiss temperature over the 2–300 K temperature range. SHG measurements of La3Mg0.5SiS7 demonstrated SHG activity with an efficiency of 0.16 times the standard potassium dihydrogen phosphate (KDP).
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content type line 23
SC0018739
USDOE Office of Science (SC)
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.3c00708