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Journal of Organometallic Chemistry
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2.07
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43370
Papers 43469
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Abstract UIO-66-NH2-Gl@Pd nanocatalyst was successfully synthesized during post-synthetic modification (PSM) method and its application was investigated in the Sonogashira coupling reactions. Initially, UIO-66-NH2 was synthesized and identified. This metal organic framework (MOF) was modified with glyoxal, then, palladium nanoparticles (NPs) were supported on the modified framework through PSM. This nanocatalyst was identified via Fourier-transform infrared spectroscopy (FT-IR), proton nuclear m...
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Abstract Specific C–H bond can be activated for arylation using aryl halide without the aid of directing the group in the case of electron-rich heteroarenes. The ability to readily generate halo substituted arylated heteroarenes is important in organic chemistry since these species are important building blocks for biochemists. In this manuscript, we report the synthesis of PEPPSI type-novel benzimidazole-based N-heterocyclic carbene-palladium(II) complexes (2a-e). All of the new compounds were ...
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Abstract Rhenium(I) tricarbonyl complexes have properties that make them valuable for various biomedical applications, such as imaging, cancer treatment, and bactericidal uses. The ability to modify the ligand coordination sphere of these complexes enables researchers to fine-tune and optimize their properties for biological use. In this study, we explored the role of axial nitrogen-donor ligands. Specifically, the compounds fac-[Re(CO)3(phen)(L)]+, where phen = 1,10-phenanthroline, and L = pyri...
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Abstract The nature of nickel(II) species, formed upon the activation of α-diiminonickel pre-catalyst LNNiIIBr2 (LN = 1,2-Bis[(2,4,6-trimethylphenyl)imino]acenaphthene) with Al2Et3Cl3 and Al2Me3Cl3, has been studied using 1H and 2H NMR spectroscopy. The paramagnetic heterobinuclear ion pairs of the type [LNNiII(μ-Cl)2AlRCl]+[A]– (where R = Et or Me, [A]- = counter anion) have been observed in the catalyst systems LNNiIIBr2/Al2Et3Cl3 and LNNiIIBr2/Al2Me3Cl3. At room temperature, both ion pairs gr...
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Abstract Treatment of [(η6-C6H6)RuCl2]2 or [(η6-p-cymene)RuCl2]2 with two equiv. of L-methionine in the presence of AgNO3 and NaOMe gave mononuclear ruthenium(II) complexes [(η6-C6H6)Ru(L-met)](NO3) (1) and [(η6-cymene)Ru(L-met)](NO3) (2), respectively. Interactions between equal equiv. of L-methionine and [Ru(CO)2Cl2]n, [Ru(bpy)2Cl2]·2H2O (bpy = 2,2′-bipyridine), [Ru(NO)(PPh3)2Cl3], (Et4N)[Ru(CH3CN)2Cl4] or cis-[Ru(DMSO)4Cl2] (DMSO = dimethylsulfoxide) resulted in isolation of the expected ruth...
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Abstract The hybrid catalyst composed of the B12 complex and rhodium ion (Rh3+) modified titanium oxide was synthesized for the visible light-driven B12 inspired catalytic reaction. The hybrid catalyst contains 4.93 × 10−6 molg−1 of the B12 complex and 5.43 × 10−5 molg−1 of the Rh(III) ion on the surface of titanium oxide. Visible light irradiation (λ ≧ 420 nm) of the hybrid catalyst in the presence of triethylamine (Et3N) as a sacrificial reagent showed absorption at 390 nm, typical for the Co(...
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Abstract In the present work for the first time polydimethylsiloxanes containing a rigid segment based on N,N-(ethane-1,2-diyl)diundec-10-enamide in the main chain were synthesized by hydrosilylation and hydrothiolation reactions. As a result, oligomers and polymers with various molecular weights from 3000 to 52000 (g mol−1, GPC) were obtained. The thermal properties of the obtained copolymers were investigated by TGA and DSC analysis. All PDMS copolymers containing different amounts of diamide ...
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Abstract A range of precious metal complexes incorporating either benzyl or carbaboranyl functionalised tethered N-heterocyclic carbenes have been prepared, including single X-ray crystallography for one new complex. The library has been screened for their anti-cancer potential against colorectal, ovarian, cisplatin-resistant ovarian and breast cancer cell lines and their selectivity determined by comparing the cytotoxicity towards normal cells. Overall, these complexes show significant selectiv...
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Abstract N,N-dimethyl-o-toluidine was treated with n-butyllithium-tmeda in diethylether/hexane solution to give (2-(dimethylamino)benzyl)lithium which reacts with chlorodiphenylphosphine to form the corresponding hemilabile N,P-ligand 2-PPh2CH2-1-NMe2C6H4 (1). Oxidation of 1 with elemental sulfur or gray selenium gave the corresponding sulfide and selenide 2-(E)PPh2CH2-1-NMe2C6H4 (E = S (2), Se (3)), respectively. The reaction of 1 with M(CO)6 (M = Mo, W) afforded cis-[Mo(CO)4{2-PPh2CH2-1-NMe2C6...
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Abstract The 1,5-disodiumoxyhexamethyltrisiloxane has been isolated in high yield with a purity of up to 98%, by simple interaction of dimethylsiloxanes with sodium hydroxide. The reasons of high selectivity of the reaction towards 1,5-disodiumoxyhexamethyltrisiloxane were analyzed. It was found that variation of reaction time, type of dimethylsiloxane precursor and ratio between sodium hydroxide and dimethylsiloxanes in wide range led to the materialization of most part of used sodium hydroxide...
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