Showing papers in "Organometallics in 2018"

TL;DR: In this paper, the diversity and characteristics of C-donor ligands are explored, with particular emphasis on the conceptual design of the electronic properties for applications in coordination chemistry, and the implications of both σ and π effects are discussed.

TL;DR: In this article, the authors highlight nontrivial mistakes, misconceptions, and misinterpretations often encountered when producing models of a chemical reaction that can lead to wrong conclusions, and the reasons for these errors are explained in simple terms.

TL;DR: In this paper, a series of PNP-chelated and -bridged diiron dithiolate complexes 1a-f and 2a-c were prepared by the selective substitutions of the all-carbonyl complex Fe2(μ-pdt)(CO)6 with aminodiphosphines (Ph2P)2NR (denoted as PNP) under different reaction conditions.

TL;DR: In this article, a short review highlights recent catalyst developments from group 3-5 elements reported in the past few years to promote two highly atom-saving transformations, namely hydroamination and hydroaminoalkylation, for the synthesis of both cyclic and acyclic nitrogen-containing compounds.

TL;DR: In this article, a series of highly sterically hindered acenaphthene-based α-diimine nickel complexes with the remote R group in 4-position of diarylmethyl moiety have been synthesized and characterized.

TL;DR: In this article, the exact structures of the ligands were confirmed by single-crystal X-ray diffraction technique, and the intercalative binding mode of the complexes with calf thymus DNA (CT DNA) was revealed by spectroscopic tools.

TL;DR: In this paper, three manganese complexes were synthesized and tested for the asymmetric transfer hydrogenation (ATH) of acetophenone in 2-PrOH, and only the precatalyst 16, upon reaction with potassium tert-butoxide (KOtBu), generated an active system at 80 °C for the ATH of 1-phenylethanol in an enantiomeric excess (ee) of 42%.

TL;DR: In this article, the alkali metal halide supported materials, ca. 5% w/w Na/NaCl and 5% W/w K/KI, are prepared without specialist equipment by rapidly stirring molten alkali metals with finely ground al...

TL;DR: In this article, the reaction of complex [Cp*Ir(HOC5H3CH2C5H 3OH)(H2O)][OTf]2 with AgOTf was further transformed to the complex [cp *Ir(OC5h3CH 2C5 h3O)(H 2O)] (3) in the presence of t-BuONa via −OH deprotonation.

TL;DR: In this article, five distinct α,α′-bis (arylimino)-2,3:5,6-bis(hexamethylene)pyridine-cobalt(II) chloride complexes were synthesized by one-pot template reaction.

TL;DR: In this paper, the synthesis, characterization, and anticancer activity of a series of iridium(III) and ruthenium(II) half-sandwich complexes of the type [(Cpx/arene)M(P^O)Cl]PF6 (M = Ir, Cpx = pentamethylcyclopentadienyl (Cp*) or its phenyl or its biphenyl derivatives; M = Ru, arene = p-cymene (p-cyclm); P^O = phosphine phosphonic amide lig

TL;DR: The complexes were more active than the free thiosemicarbazone ligands, especially in A549 and HCT116 cells with potency improvements of up to 20-fold between organic ligand L1 and ruthenium complex 1.

TL;DR: The unsymmetrical ligands 2.6-bis(1-(2,6-dibenzhydryl-4-tert-butylphenylimino)ethyl]-6-[1-(arylimino)-ethyl]pyridine (L6) have been prepared and characterized by FT IR and 1H/13C NMR spectroscopy and elemental analysis.

TL;DR: Ruthenium(II) hydride complexes bearing a pyrazolyl-(2-indol-1-yl)-pyridine ligand were synthesized and structurally characterized by NMR analysis and X-ray single crystal crystallographic determinations.

TL;DR: The reaction of (N∧N)PdMe2/SZO polymerizes ethylene with activity as high as 1342 kgPE/(molactive Pd*h) and incorporated up to 0.46% methyl acrylate in copolymerization reactions.

TL;DR: It has been shown that complexes of the form (iPrPNP)Fe(H)(C≡NR) (n(CH2CH2P(iPr)2)2)-, R = 2,6-dimethylphenyl or 4-methoxyphenyl), which contain a pincer ligand capable of...

TL;DR: In this article, a diazaphospholene hydride precatalyst was used to catalyze pyridine hydroboration with electron-withdrawing groups in the 3 position.

TL;DR: In this article, a series of bis(imino)acenaphthene (BIAN)-supported Pd-PEPPSI complexes were synthesized, characterized, and applied in direct arylation of azoles.

TL;DR: A series of two-coordinate copper tert-butoxide complexes bearing five-, six-, and seven-membered ring N-heterocyclic carbenes, prepared by protonolysis of (NHC)CuMes with tBuOH, have been used as catalytic precursors in the semihydrogenation of alkynes with silanes/tBuOH and the hydroboration of alkynes with HBPin this paper.

TL;DR: In this paper, the meso-substitution of the macro ring on the CO2 with epoxide catalyzed by metal prophyrin and corrole complexes was investigated.

TL;DR: Four neutral organometallic tethered complexes exhibit moderate antiproliferative activity toward human ovarian, lung, hepatocellular, and breast cancer cell lines and show potent catalytic activity in the transfer hydrogenation of NAD+ to NADH with formate as hydride donor in aqueous solution.

TL;DR: In this article, a β-diketiminato ligand with methyl-pyridine side arm was used to synthesize magnesium (1) and calcium (2) compounds, which were used as catalysts for hydroboration of a wide range of aldehydes using pinacolborane (HBpin) at room temperature.

TL;DR: In this article, the tridentate, P-stereogenic, C2-symmetric PNP pincer ligand (SP,SP)-2,6-bis((cyclohexyl(methyl)phosphanyl)methyl)pyridine (1a) and its iron(II) complexes [FeBr2(CO)(1a)] (2a), [FeHBr(CO), 1a), and [FeFeH2(1a), 3a] were studied by density functional theory.

TL;DR: In this paper, a 4,6-disubstituted 2,2′-bipyridine ligand for Cu was designed and two heteroleptic [Cu(N^N)(P^P)][PF6] complexes were synthesized and characterized.

TL;DR: In this article, the authors show that thermally robust NHC complexes with sulfonate-functionalized wingtips are highly prolific for catalytic transformation to lactic acid, requiring no cosolvents other than aqueous base.

TL;DR: The first copper-mediated diastereoselective C–H thiolation of ferrocenes has been developed and tolerated various functional groups on arylthiols, implying its potential application in N,S-bidentate planar chiral ligands.

TL;DR: Overall, this research suggested that the ruthenium-coumarin complexes could induce cell apoptosis via inhibition of the mitochondrial and ERK signal pathways.

TL;DR: In this paper, the electronic structures of the prototypical bimetallic buta-1,3-diyn 1,4-bridged radical cation complexes [{M(dppe)Cp′}2(μ-C≡CC≡C)]+ have been (re)investigated using a combination of UV-vis-NIR and IR spectroelectrochemistry, and quantum chemical calculations based on both dispersion-corrected global (BLYP35-D3) and local (Lh-SsirPW92-

TL;DR: In this paper, the synthesis and application of two phosphine-functionalized pincer-type N-heterocyclic carbene analogues (PNNP)E] and their reactivity toward main group and precious metal compounds were described.

TL;DR: Bifunctional complexes bearing N-heterocyclic carbene (NHC) ligands functionalized with hydroxy or amine groups were synthesized to measure the beneficial effect of different modes of metal-ligand cooperation in the acceptorless dehydrogenation of alcohols as mentioned in this paper.