包含噻唑-腙席夫碱配体的钯（II）配合物：合成、结构和在 Suzukii-Miyaura 偶联反应中的催化活性

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2024-10-04 DOI:10.1016/j.poly.2024.117245

Zahra Bagheri , Massomeh Ghorbanloo , Rahman Bikas , Tadeusz Lis

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引用次数: 0

摘要

PdCl2 和 Pd(OAc)2 与 (E)-2-(2-(吡啶-2-基亚甲基)肼基)苯并[d]噻唑 (HL) 在甲醇中反应生成两种中性单核 Pd(II) 复合物。使用 PdCl2 得到了两种晶体，通式分别为 [Pd(Cl)L]-0.5(C2H5OH) (1a) 和 [Pd(Cl)L] (1b)，而使用 Pd(OAc)2 则得到了一种晶体，通式为 [Pd(OAc)L]-0.5(H2O) (2)。利用光谱方法对这些配合物进行了表征，并通过单晶 X 射线衍射分析确定了它们的分子结构。在这些配合物中，配体通过噻唑环、吡啶环和亚胺分子的氮原子与钯(II)核心配位，是三叉单阴性 NNN 供体配体。研究还发现，这些钯（II）配合物在铃木-宫浦偶联反应中表现出催化活性。

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Palladium(II) complexes comprising thiazole-hydrazone Schiff base ligand: Synthesis, structure and catalytic activity in Suzuki-Miyaura coupling reactions

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Palladium(II) complexes comprising thiazole-hydrazone Schiff base ligand: Synthesis, structure and catalytic activity in Suzuki-Miyaura coupling reactions

The reaction of PdCl₂ and Pd(OAc)₂ with (E)-2-(2-(pyridin-2-ylmethylene)hydrazinyl)benzo[d]thiazole (HL) in methanol resulted in the formation of two neutral mononuclear Pd(II) complexes. By using PdCl₂ two kinds of crystals with general formula of [Pd(Cl)L]·0.5(C₂H₅OH) (1a) and [Pd(Cl)L] (1b) were obtained while Pd(OAc)₂ gave one type of crystal with general formula of [Pd(OAc)L]·0.5(H₂O) (2). These complexes were characterized using spectroscopic methods, and their molecular structures were determined by single crystal X-ray diffraction analysis. In these complexes, the ligand coordinates to the Pd(II) core through the nitrogen atoms of the thiazole ring, pyridine ring, and imine moiety, acting as tridentate mononegative NNN donor ligand. These palladium(II) complexes were also found to exhibit catalytic activity in Suzuki-Miyaura coupling reactions.

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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.