Versatile CoII and NiII mononuclear complexes with furoate/thiophencarboxylate anions and 3,5-dimethylpyrazole– Synthesis, structure, magnetic, catalytic and antimycobacterial properties

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2024-11-15 DOI:10.1016/j.ica.2024.122445

Marina A. Uvarova , Fedor M. Dolgushin , Konstantin A. Babeshkin , Nikolay N. Efimov , Natalia V. Gogoleva , Denis N. Nebykov , Anastasia V. Lagutina , Alexandr O. Panov , Vladimir M. Mokhov , Olga B. Bekker , Konstantin O. Titov , Irina A. Lutsenko , Igor L. Eremenko

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Abstract

Series of complexes of the composition [M(L)₂(Hdmpz)_n] (L = fur, M = Co^II, n = 2 (1), n = 4 (2), M = Ni^II, n = 2 (3), L = tph, M = Co^II, n = 2 (4), M = Ni^II, n = 2 (5), n = 4 (6)) has been obtained by interaction of cobalt^II and nickel^II acetates with 3-furancarboxylic (Hfur) or 2-thiophencarboxylic (Htph) acids, followed by the addition of 3,5-dimethylpyrazole (Hdmpz). According to the X-ray data in complex 1–6, metal atoms are surrounded by carboxylate anions and two or four monodentately coordinated Hdmpz molecules. Additional stabilization of the complexes is carried out by the inter- and intramolecular hydrogen bonds. Co and Ni catalysts obtained by chemical activation of 1 and 3 exhibit high catalytic activity in a continuous dicyclopentadiene (DCPD) hydrogenation process at atmospheric hydrogen pressure. Slow relaxation of magnetization has been found for complexes by use of ac-magnetometry for compounds 1 and 4 at 1000 Oe dc-field in contrast with 2, 3, 5, 6 exhibiting no slow magnetic relaxation. Biological activity of 1–6 has been determined against a non-pathogenic strain of Mycobacterium smegmatis.

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具有糠酸盐/噻吩羧酸阴离子和 3,5 二甲基吡唑的多功能 CoII 和 NiII 单核络合物--合成、结构、磁性、催化和抗霉菌特性

组成为[M(L)2(Hdmpz)n]（L = fur，M = CoII，n = 2 (1)，n = 4 (2)，M = NiII，n = 2 (3)，L = tph，M = CoII，n = 2 (4)，M = NiII，n = 2 (5)、n = 4 (6)）是通过钴Ⅱ和镍Ⅱ醋酸盐与 3-呋喃羧酸（Hfur）或 2-噻吩羧酸（Htph）相互作用，然后加入 3,5-二甲基吡唑（Hdmpz）而得到的。根据复合物 1-6 的 X 射线数据，金属原子被羧酸阴离子和两个或四个单端配位的 Hdmpz 分子包围。分子间和分子内氢键对复合物起到了额外的稳定作用。通过化学活化 1 和 3 得到的 Co 和 Ni 催化剂在大气氢压下的连续双环戊二烯（DCPD）氢化过程中表现出很高的催化活性。在 1000 Oe 直流电场下，利用交流磁强计发现 1 和 4 复合物的磁化弛豫较慢，而 2、3、5 和 6 复合物的磁化弛豫则不慢。已测定了 1-6 对非致病分枝杆菌的生物活性。

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.