Ruthenium(II) complexes bearing tridentate 2-(methylsulfoxide)-phenylsalicylaldimine Schiff-base ligands

IF 2.7 3区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganica Chimica Acta Pub Date : 2024-09-14 DOI:10.1016/j.ica.2024.122373
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Abstract

The sulfoxide-containing Schiff base (E)-2-((2-(methylsulfinylphenyl)imino) methyl) phenol (HL) was synthesized by aldolamine condensation and oxidation. In the presence of triethylamine, equal amounts of [RuCl2(CO)2]n, [RuHCl(CO)(PPh3)3], cis-[RuCl2(dmso)4] (dmso = dimethylsulfoxide) and [RuCl2(PPh3)3] were reacted with HL to give the ruthenium(II) complexes [RuCl(L)(CO)2] (1), [RuCl(L)(CO)(PPh3)] (2), [RuCl(L)(dmso)2] (3), and [RuCl(L)(PPh3)2] (4), respectively. Compound 4 converted to be [RuCl(L)(PPh3)(CH3CN)] (4′) by recrystallization in acetonitrile. The structures of HL, 1, 2, 3 and 4′ have been confirmed by single crystal X-ray crystallography. In addition, the UV–visible, infrared and fluorescence spectra of HL and its ruthenium complexes 14 along with their electrochemical properties were investigated. The catalytic properties of complexes 14 for the cyclopropylation of styrene were also presented.

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带有三叉 2-(甲基亚砜)-苯基水杨醛亚胺席夫碱配体的钌(II)配合物
通过醛胺缩合和氧化合成了含氧化硫的希夫碱 (E)-2-((2-(甲亚磺酰基苯基)亚氨基)甲基) 苯酚 (HL)。在三乙胺存在下,等量的[RuCl2(CO)2]n、[RuHCl(CO)(PPh3)3]、顺式[RuCl2(dmso)4](dmso=二甲基亚砜)和[RuCl2(PPh3)3]与 HL 反应,得到钌(II)配合物[RuCl(L)(CO)2](1)、[RuCl(L)(CO)(PPh3)] (2)、[RuCl(L)(dmso)2] (3) 和 [RuCl(L)(PPh3)2] (4)。化合物 4 在乙腈中重结晶为[RuCl(L)(PPh3)(CH3CN)](4′)。HL、1、2、3 和 4′的结构已由单晶 X 射线晶体学证实。此外,还研究了 HL 及其钌配合物 1-4 的紫外可见光谱、红外光谱和荧光光谱,以及它们的电化学性质。此外,还介绍了配合物 1-4 在苯乙烯环丙基化过程中的催化特性。
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来源期刊
Inorganica Chimica Acta
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.
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