Dichlorido(crown ether)lanthanoid(III) tetrachloroaluminate complexes

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2024-10-28 DOI:10.1016/j.poly.2024.117270

David J. Evans , Zhifang Guo , Glen B. Deacon , Peter C. Junk

引用次数: 0

Abstract

Reactions between LnCl₃, AlCl₃ and a crown ether (18-crown-6 and dibenzo18-crown-6) in MeCN have led to the isolation of four new lanthanoid halide crown ether complexes, [PrCl(μ-Cl)(18-crown-6)]₂[AlCl₄]₂·2MeCN (1), [YbCl₂(18-crown-6)][AlCl₄]·MeCN (2), and [LnCl(μ-Cl)(dibenzo18-crown-6)}₂][AlCl₄]₂·6.5MeCN (Ln = La, 3, Pr, 4). 1 was also obtained by unexpected halide transfer on addition of 18-crown-6 (18C6) to MeCN solutions of [Pr(MeCN)₉][AlCl₄]₃. Complexes 1, 3 and 4 have dinuclear chloride-bridged nine-coordinate cations, and 2 has an eight coordinate mononuclear cation.

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二氯(冠醚)镧系(III)四氯铝酸盐络合物

通过 LnCl3、AlCl3 和冠醚（18-冠醚-6 和二苯并 18-冠醚-6）在 MeCN 中的反应，分离出了四种新的镧系卤化物冠醚配合物、[PrCl(μ-Cl)(18-冠-6)]2[AlCl4]2-2MeCN（1）、[YbCl2(18-冠-6)][AlCl4]-MeCN（2）和[LnCl(μ-Cl)(二苯并18-冠-6)}2][AlCl4]2-6。5MeCN（Ln = La、3、Pr、4）。1 也是在 [Pr(MeCN)9][AlCl4]3的 MeCN 溶液中加入 18-冠-6（18C6）时通过意外的卤化物转移而得到的。络合物 1、3 和 4 具有双核氯桥九配位阳离子，2 具有八配位单核阳离子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.