A series of Rb(4)Ln(2)(P2S6)(PS4)(2) (Ln = La, Ce, Pr, Nd, Sm, Gd) rare earth thiophosphates with two distinct thiophosphate units [(PS4)-S-V](3-) and [(P2S6)-S-IV](4-)

Kutahyali Aslani Ceren; Breton Logan S.; Klepov Vladislav V.; zur Loye Hans-Conrad

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A series of Rb(4)Ln(2)(P2S6)(PS4)(2) (Ln = La, Ce, Pr, Nd, Sm, Gd) rare earth thiophosphates with two distinct thiophosphate units [(PS4)-S-V](3-) and [(P2S6)-S-IV](4-)

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A series of Rb(4)Ln(2)(P2S6)(PS4)(2) (Ln = La, Ce, Pr, Nd, Sm, Gd) rare earth thiophosphates with two distinct thiophosphate units [(PS4)-S-V](3-) and [(P2S6)-S-IV](4-)

机译：一系列RB（4）LN（2）（P2S6）（PS4）（PS4）（2）（LN = La，Ce，Pr，Nd，Sm，Gd）稀土硫代磷酸，具有两种不同的硫代磷酸磷酸磷酸磷酸磷酸磷酸磷酸磷酸磷酸盐[（ps4）-sv] （3-）和[（P2S6）-S-IV]（4-）

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A series of rubidium rare earth thiophosphates with the formula Rb(4)Ln(2)(P2S6)(PS4)(2) (Ln = La, Ce, Pr, Nd, Sm, and Gd) were synthesized using the high temperature molten flux crystal growth method utilizing a RbBr flux. Single crystals of all title compounds, as well as phase pure powders of the La-, Ce-, and Sm-containing compositions, were obtained. Single crystals of the title compounds were characterized by single crystal and powder X-ray diffraction for structure and phase identification. Rb(4)Ln(2)(P2S6)(PS4)(2) crystallizes in the monoclinic crystal system adopting the P2(1)/n space group for the large rare earths (Ln = La, Ce, Pr) and the C2/c space group for the smaller rare earths (Ln = Nd, Sm, Gd). This Rb(4)Ln(2)(P2S6)(PS4)(2) series is a rare example of thiophosphates containing both tetrahedral [(PS4)-S-V](3-) and dimeric [(P2S6)-S-IV](4-) thiophosphate units that, in this structural family, link corrugated rare earth sulfide chains into sheets. The band gaps of the materials were determined from UV-Vis data and the fluorescence spectrum of Rb4Ce2(P2S6)(PS4)(2) was collected. Optical band gaps were estimated to be 2.9 and 2.4 for the Nd and Sm analogues, respectively.

机译：采用高温熔剂晶体生长法，利用RbBr熔剂合成了一系列Rb（4）Ln（2）（P2S6）（PS4）（2）（Ln=La、Ce、Pr、Nd、Sm和Gd）的稀土硫磷酸盐铷。获得了所有标题化合物的单晶，以及含有La、Ce和Sm成分的纯相粉末。通过单晶和粉末X射线衍射对标题化合物的单晶进行了结构和物相鉴定。Rb（4）Ln（2）（P2S6）（PS4）（2）在单斜晶体系统中结晶，大稀土（Ln=La，Ce，Pr）采用P2（1）/n空间群，小稀土（Ln=Nd，Sm，Gd）采用C2/c空间群。这种Rb（4）Ln（2）（P2S6）（PS4）（2）系列是一种罕见的硫代磷酸盐，含有四面体[（PS4）-S-V]（3-）和二聚体[（P2S6）-S-IV]（4-）硫代磷酸盐单元，在这种结构家族中，它们将波纹状的稀土硫化物链连接成薄片。根据紫外-可见光谱数据确定材料的带隙，并收集Rb4Ce2（P2S6）（PS4）（2）的荧光光谱。Nd和Sm类似物的光学带隙估计分别为2.9和2.4。

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《Dalton transactions: An international journal of inorganic chemistry》 |2021年第5期|共7页
作者
Kutahyali Aslani Ceren; Breton Logan S.; Klepov Vladislav V.; zur Loye Hans-Conrad;
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Univ South Carolina Dept Chem &

Biochem Columbia SC 29208 USA;

Univ South Carolina Dept Chem &

Biochem Columbia SC 29208 USA;

Univ South Carolina Dept Chem &

Biochem Columbia SC 29208 USA;

Univ South Carolina Dept Chem &

Biochem Columbia SC 29208 USA;

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中图分类化学;无机化学;
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A series of Rb(4)Ln(2)(P2S6)(PS4)(2) (Ln = La, Ce, Pr, Nd, Sm, Gd) rare earth thiophosphates with two distinct thiophosphate units [(PS4)-S-V](3-) and [(P2S6)-S-IV](4-)

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