Showing papers in "Journal of Organometallic Chemistry in 2013"

TL;DR: In this paper, the structural and magnetic properties of functionalized magnetic silica are identified by transmission electron microscopy (TEM), scanning electron microscope (SEM) and vibrating sample magnetometer (VSM) instruments.

TL;DR: In this article, a series of 2,6-dibenzhydryl-N-(2-phenyliminoacenaphthylenylidene)-4-chloroanilines (L1-L5) and their nickel halide complexes LNiX2 (X=Br, C1-C5; X = Cl, C6-C10) were synthesized.

TL;DR: The synthesis and properties of a variety of “molecularly enlarged” pincer organometallics displaying both surprising stability and versatile catalytic properties are discussed.

TL;DR: A series of new organotin(IV) complexes of the types R2SnL, R is Me (1), Ph (2), o-Cl-C6H4CH2 (3); and [R3SnL]∞, R = n-Bu (4) (H2L = 2-hydroxy-1-naphthaldehyde 5-chloro-2-hydroxbenzoylhydrazone) have been synthesized and structurally characterized by means of elemental analysis, FT-IR, UV-vis spectroscopy,

TL;DR: The air-moisture stable and recyclable palladium(II) Schiff base complex anchored to multi-walled carbon nanotubes (Pd-Schiff base@MWCNTs) behaves as a very efficient heterogeneous catalyst in the Suzuki-Miyaura coupling of arylboronic acids and aryls halides as discussed by the authors.

TL;DR: In this article, a review of the solubility and solubile trends of organometallic complexes in supercritical carbon dioxide is presented, and the influence of intermolecular forces, physical properties and the metal chelates on solubilities is explored.

TL;DR: In this paper, the hydrogenation of levulinic acid (LA) yielding γ-valerolactone (GVL) has been examined in aqueous solution using various water soluble phosphine ligands in combination with the metal precursors [Ru(acac)3] and [RuCl3].

TL;DR: In this paper, the development of multinuclear pentamethylcyclopentadienyl (Cp*) rhodium and iridium complexes from first and second-generation 2-iminopyridyl and salicylaldimine based poly(propyleneimine) dendrimer scaffolds has been accomplished.

TL;DR: New bisoxamato palladate(II) complexes of formula (n -Bu 4 N) 2 [Pd(2-Mepma) 2 ]·4H 2 O (1a) and (n-Bu 4N) 2[Pd 4 N]·2H 2O·MeCN (1b) have been synthesized and characterized by spectroscopic methods and single crystal X-ray diffraction.

TL;DR: A series of organotin(IV) carboxylate complexes have been successfully synthesized and characterized by FT-IR, NMR (1H, 13C) and single crystal analysis as mentioned in this paper.

TL;DR: In this article, a cyclic bis-silylene of composition (2,6-Ar 2 C 6 H 3 NSi:) 2 contains a four-membered N 2 Si 2 ring with two coordinate silicon.

TL;DR: In this paper, 1.5-substituted-1H-tetrazoles can be synthesized from the corresponding nitriles by reaction with NaN3 using the efficient and recyclable heterogeneous catalyst prepared by immobilization of copper(II) complex of 4′-phenyl-2,2′:6′,2″-terpyridine on activated multi-walled carbon nanotubes.

TL;DR: An efficient iron-based catalyst system consisting of Fe(BF) 4 ·6H 2 O and P(CH 2 CH 2 PPh 2 ) 3 [tetraphos, (PP 3 )] is presented for the highly selective transfer hydrogenation of aromatic, aliphatic, and α,β-unsaturated aldehydes as mentioned in this paper.

TL;DR: In this article, the palladium-catalyzed Suzuki-Miyaura coupling reactions of aryliodides and bromides, Mizoroki-Heck coupling reactions, and copper-free Sonogashira reactions were investigated.

TL;DR: In this paper, the authors showed that the active catalyst is an Fe(I) species, and that the spin change occurs after the first transmetallation when the strong ligand field of the aryl group raises the energy of one d-orbital, inducing an electron pairing event.

TL;DR: New chromone Schiff base organotin(IV) complexes 1 – 3 were synthesized and thoroughly characterized by various spectroscopic methods, elemental analysis and molar conductance values, which revealed electrostatic mode of binding preferably via oxygen of sugar-phosphate backbone of DNA helix and preferential phosphate binding affinity.

TL;DR: In this article, it was shown that metal-free hydrogen exchange reactions are also possible between amine-boranes and aminoboranes under mild conditions, and that amine−boranes can act as hydrogen sources in metal-catalyzed or metal free transfer hydrogenation reactions of unsaturated organic species including imines and polar olefins.

TL;DR: A series of cationic dinuclear p-cymene ruthenium complexes containing three thiolato bridges with different substituents at the sulfur atoms was reported in this paper.

TL;DR: In this paper, a series of cyclometalated iridium(III) complexes with functionalized borylated oligothiophene ligands are reported and the effect of the length of the chain length on the photophysical properties of these metal complexes is examined in detail and their excited state properties can be controlled by increasing the number of thienyl rings.

TL;DR: A series of heterodinuclear p-cymene ruthenium ferrocene complexes were synthesized from p-CYMNE-D dimer and phosphinoferrocene ligands bearing carboxamide substituents derived from amino acids.

TL;DR: In this paper, six mono-and dinuclear N-heterocyclic carbene (NHC) complexes based on 1-[2-(pyrazol-1-yl)phenyl]imidazole have been synthesized and characterized by elemental analysis and NMR spectroscopy, and their structures have been confirmed by single crystal X-ray diffraction.

TL;DR: In this article, five new silver complexes having bidentate N -heterocyclic carbene ligands were synthesized and characterized by elemental analysis, IR, NMR and mass spectroscopic methods.

TL;DR: In this article, the imines 1,3-di-tert-butylimidazolidin-2-imine (10) and 4,5-dimethyl-1,3d-dimethoxyethane (14) were prepared starting from the corresponding N-heterocyclic carbenes 8 and 11 and trimethylsilyl azide or tert-butyl azide, respectively.

TL;DR: A series of 2-(1]-2,6-bis[bis(4-fluorophenyl)methyl]-4-methylphenyl-imino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt(II) chloride complexes (Co1-Co5) was synthesized and characterized by FT-IR spectroscopy and elemental analysis.

TL;DR: In this article, the enantioselective intramolecular cycloisomerization of triynes under catalysis by chiral transition-metal complexes (CoI, Ni0) in order to receive nonracemic helicene derivatives was explored.

TL;DR: Carborane-based ligands have been widely used as suitable ligands to coordinate with transition metals to construct various metal complexes as discussed by the authors, and a mini-review describes the syntheses and catalytic applications of the type complexes, specifically emphasizing their catalytic activity for olefin polymerization.

TL;DR: In this article, a new family of cationic half-sandwich complexes of the type [(η6-cymene)Ru(PPh3)(L)]+ (L ǫ = bidentate monoanionic thioamide) have been synthesized and isolated as their tetraphenylborate salts.

TL;DR: Four new ferrocenyl-flavones obtained via palladium-catalyzed Heck cross-coupling reactions showed antibacterial activity for the carboxylic acid derivative 7 against all tested Gram-positive bacterial strains while no activity was detected for the ferrocene-free 6-bromo-chromen-4-one-3-propionic acid.

TL;DR: In this article, the photophysical and photochemical properties of newly synthesized zinc phthalocyanines were investigated in DMSO for non-ionic and in both DMS and phosphate buffer solution (PBS) for ionic compounds.

TL;DR: A new catalytic system of bisphosphinite PCP-pincer palladium complex based on Merrifield resin was synthesized and characterized by XRD and XPS techniques as mentioned in this paper.