Single‐crystal structure determination of two new ternary bismuthides: Rh 6 6 Mn 5 5 Bi 18 18 and RhMnBi 3 3

Kainzbauer Peter; Richter Klaus W.; Effenberger Herta Silvia; Marker Martin C. J.; Ipser Herbert

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Single‐crystal structure determination of two new ternary bismuthides: Rh 6 6 Mn 5 5 Bi 18 18 and RhMnBi 3 3

机译：单晶结构两种新三元铋的测定：RH 6 6 MN 5 5 BI 18 18和RHMNBI 3 3

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A study of the ternary Rh–Mn–Bi phase diagram revealed the existence of two new ternary bismuthides, viz. hexarhodium pentamanganese octadecabismuthide (Rh 6 Mn 5 Bi 18 ) and rhodium manganese tribismuthide (RhMnBi 3 ). Their crystal structures represent new structure types. Rh 6 Mn 5 Bi 18 , with a Wyckoff sequence a f 2 g 2 i 5, crystallizes in the tetragonal system (space group P 4 2 / mnm ; Pearson symbol tP 58), and RhMnBi 3 , with a Wyckoff sequence a c g i q , crystallizes in the orthorhombic system ( Cmmm ; oS 20). In the Rh 6 Mn 5 Bi 18 structure, the transition metal atoms are linked into ribbon‐like structural units aligned along the [001] direction, whereas planar sheets are formed in RhMnBi 3 . In both crystal structures, the units formed by the transition metal atoms are enveloped by Bi atoms, which themselves form a loosely bound network. The linkage results in a layer structure for RhMnBi 3 , while in the case of Rh 6 Mn 5 Bi 18 , a three‐dimensional network is formed; the latter, however, contains several areas where Bi…Bi distances suggest van der Waals interactions. Both phases under discussion have analogous structural motifs.

机译：三元RH-MN-BI相图的研究揭示了两种新的三元铋，VIZ。 Hexarhodium Pentamanganese OctanteCabismuthide（RH 6 MN 5 BI 18）和铑锰患者（RHMNBI 3）。它们的晶体结构代表新的结构类型。 RH 6 MN 5 BI 18，具有Wyckoff序列AF 2 G 2 I 5，在四边形系统中结晶（空间组P 4 2 / Mnm; Pearson符号TP 58）和RHMNBI 3，具有Wyckoff序列Acgiq，结晶矫正体系（CMMM; OS 20）。在RH 6 MN 5 BI 18结构中，过渡金属原子与沿着[001]方向对齐的带状结构单元连接，而平面片材在RHMNBI 3中形成。在两个晶体结构中，由过渡金属原子形成的单元被双原子包裹，它们本身形成松散的网络。链接导致RHMNBI 3的层结构，而在RH 6 MN 5 BI 18的情况下，形成三维网络;但是，后者包含了若干领域，其中Bi ... Bi距离建议范德华别墅相互作用。正在讨论的两个阶段都有类似的结构图案。

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来源
《Acta crystallographica. Section C, Structural chemistry.》 |2018年第7期|共6页
作者
Kainzbauer Peter; Richter Klaus W.; Effenberger Herta Silvia; Marker Martin C. J.; Ipser Herbert;
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作者单位

Department of Inorganic Chemistry – Functional Materials University of Vienna Faculty of;

Department of Inorganic Chemistry – Functional Materials University of Vienna Faculty of;

Institute of Mineralogy and Crystallography University of Vienna Althanstrasse 14 Vienna 1090;

Department of Inorganic Chemistry – Functional Materials University of Vienna Faculty of;

Department of Inorganic Chemistry – Functional Materials University of Vienna Faculty of;

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正文语种 eng
中图分类晶体学;
关键词
Rh 6 Mn 5 Bi 18; RhMnBi 3; crystal structure; Rh‐Mn‐Bi phase diagram; ternary bismuthide; intermetallic; pnictide;

机译：RH 6 MN 5 BI 18;RHMNBI 3;晶体结构;RH-MN-BI相图;三元铋;金属间铋;预防;

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3. Single‐crystal structure determination of two new ternary bismuthides: Rh 6 6 Mn 5 5 Bi 18 18 and RhMnBi 3 3 [J] . Kainzbauer Peter, Richter Klaus W., Effenberger Herta Silvia, Acta crystallographica. Section C, Structural chemistry. . 2018,第7期

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Single‐crystal structure determination of two new ternary bismuthides: Rh 6 6 Mn 5 5 Bi 18 18 and RhMnBi 3 3

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