Synthesis, characterization, X-ray structures, and catalytic activity of new Mn(I) and Re(I) metal complexes of chelating phosphinopyridylamine and its sulfide ligands

IF 2.1 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Organometallic Chemistry Pub Date : 2025-03-22 DOI:10.1016/j.jorganchem.2025.123620

Harbi Tomah Al-Masri , Akram Ali Almejled , Ziad Moussa

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Abstract

The reaction of 4-Me-C₅H₃N-2-NH(PPh₂) (1) with Mn(CO)₅Br in refluxing chloroform produced the fac-[Mn(CO)₃Br{1-κ²P,N}] (2) and [Mn(CO)₂{1-κ²P,N}₂]Br (3) complexes. Furthermore, the refluxing of the monooxidized thioyl (4-CH₃)C₆H₃N-2-NH(P(S)Ph₂) (4) ligand with M(CO)₅Br (M = Mn, Re) in chloroform yielded the fac-[M(CO)₃Br{4-κ²S,N^py}] (M = Mn (5), Re(6)) complexes. The investigation of complexes 2, 3, 5, and 6 was carried out with the use of multinuclear NMR (¹H, ¹³C and ³¹P NMR), infrared spectroscopy, and the determination of crystal structures. Complexes 5 and 6 represent the inaugural structurally characterized instances of this category of chalcogenide ligands associated with Mn and Re metals documented thus far. Complexes 5 and 6 demonstrate significant catalytic efficacy in the hydrogenation of acetophenone derivatives to yield 1-phenylethanol derivatives, utilizing 2-propanol as a hydrogen source.

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来源期刊

Journal of Organometallic Chemistry 化学-无机化学与核化学

CiteScore

4.40

自引率

8.70%

发文量

221

审稿时长

36 days

期刊介绍： The Journal of Organometallic Chemistry targets original papers dealing with theoretical aspects, structural chemistry, synthesis, physical and chemical properties (including reaction mechanisms), and practical applications of organometallic compounds. Organometallic compounds are defined as compounds that contain metal - carbon bonds. The term metal includes all alkali and alkaline earth metals, all transition metals and the lanthanides and actinides in the Periodic Table. Metalloids including the elements in Group 13 and the heavier members of the Groups 14 - 16 are also included. The term chemistry includes syntheses, characterizations and reaction chemistry of all such compounds. Research reports based on use of organometallic complexes in bioorganometallic chemistry, medicine, material sciences, homogeneous catalysis and energy conversion are also welcome. The scope of the journal has been enlarged to encompass important research on organometallic complexes in bioorganometallic chemistry and material sciences, and of heavier main group elements in organometallic chemistry. The journal also publishes review articles, short communications and notes.