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
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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。
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来源期刊
Polyhedron
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.
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