Crystal Structures and Property Measurements of Rare Earth Magnesium Thiosilicates Synthesized via Flux Crystal Growth Utilizing the Boron Chalcogen Mixture (BCM) Method.
Crystal Structures and Property Measurements of Rare Earth Magnesium Thiosilicates Synthesized via Flux Crystal Growth Utilizing the Boron Chalcogen Mixture (BCM) Method.
复制标题
利用硼硫族混合物 (BCM) 方法通过助熔剂晶体生长合成的稀土硫代硅酸镁的晶体结构和性能测量。
DOI：
10.1021/acs.inorgchem.3c00708
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发表时间：
2023
影响因子：
4.6
通讯作者：
H. zur Loye
中科院分区：
文献类型：
--
作者：
Adam A King;Logan S. Breton;G. Morrison;Mark D Smith;Mingli Liang;P. Halasyamani;H. zur Loye
采用硼硫族混合物 (BCM) 方法在碱卤化物助熔剂中合成了九种新型稀土镁硫代硅酸盐，其化学式为 RE3Mg0.5SiS7（Ln = Ce、Pr、Nd、Sm、Gd、Tb、Dy、Ho、Er）。生产出高质量的晶体，并通过单晶 X 射线衍射确定了它们的结构。该化合物在 P63 空间群的六方晶系中结晶。这些化合物的相纯粉末用于磁化率测量和二次谐波产生（SHG）测量。磁性测量表明，Ce3Mg0.5SiS7、Sm3Mg0.5SiS7 和 Dy3Mg0.5SiS7 表现出顺磁行为，在 2-300 K 温度范围内具有负韦斯温度。 La3Mg0.5SiS7 的二次谐波测量表明二次谐波活性的效率是标准磷酸二氢钾 (KDP) 的 0.16 倍。
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).