Showing papers in "Organometallics in 1998"

TL;DR: In this paper, the crystal structure of compound 1 revealed that linear [Ag(Et2-Bimy)2]+ and [AgBr2]- groups were associated through a short AgI−AgI contact (2.956 A).

TL;DR: In this article, neutral salicylaldiminato Ni(II) complexes have been synthesized, and their structure has been confirmed by an X-ray analysis of complex 4e.

TL;DR: Two reliable and efficient routes to bis(pentafluorophenyl)borane, 1, are described in this paper, where the transfer agent Me2Sn(C6F5)2 is used to produce the chloroborane ClB(C 6F5), which is subsequently converted to 1 by treatment with a silane, and proceeds with an overall yield of 62%.

TL;DR: In this article, relativistic ECPs with large valence basis sets for the metals are reported for the complexes of CuCl, AgCl, and AuCl with the N-heterocyclic carbene imidazol-2-ylidene 1 and the related silylene 2 and germylene 3.

TL;DR: Palladium(II) compounds dissolved in 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI·BF4) ionic liquid are shown to be able to catalyze the hydrodimerization of 1,3-butadiene as discussed by the authors.

TL;DR: In this paper, various titanium complexes of the type Cp‘Ti(OAr)Cl2 (Cp = cyclopentadienyl; OAr = aryloxy) could be prepared in high yields from CpTiCl3.

TL;DR: In this article, a series of Schiff-base-substituted ruthenium carbene complexes have been prepared by the treatment of RuCl_2(=CHPh)(PCy_3)_2 with a variety of Schiffbase ligands as the thallium salts.

TL;DR: The metathesis of terminal olefins having different steric bulk and different geometries as well as electronically different para-substituted styrenes was studied with the ruthenium-based metathesi....

TL;DR: In this article, the preparation and reaction chemistry of β-diketiminato aluminum complexes are described, and the precursors of these complexes are obtained by treating AlCl3 with LiTTP.

TL;DR: In this article, a chiral PCP-type ligand with PdCl2(PhCN)2 and [Pt2(μ-Cl)2(η3-CH2C(CH3)CH2)2] was obtained for the first time and their X-ray crystal structures were determined.

TL;DR: Trimethylaluminum reacts with [CPh3][B(C6F5)4] at elevated temperatures to give a mixture of AlMe3-x(C 6F5), depending on the Al/B ratio as discussed by the authors.

TL;DR: In this paper, an alternative synthetic route to η5-pentamethylcyclopentadienylgallium (Me5C5Ga, Cp*Ga, 1) via reductive dehalogenation of (Cp*)GaI2, 2) is reported.

TL;DR: In the presence of excess methylaluminoxane (MAO), 1a−c catalyzed the homopolymerization of ethylene and the copolymerization with α-olefins.

TL;DR: In this article, a ring-opening metathesis polymerization of 1,5-cyclooctadiene was performed using ruthenium carbenes, and the results showed that the parent catalysts had higher activity than the bridged-chloride dimers.

TL;DR: In this paper, the synthesis and coordination of bidentate ligands with both imidazoline-2-ylidene and oxazoline moieties is described. But the synthesis follows straightforward routes, using N-functionalized imidisolium salts and 2-amino alcohols.

TL;DR: The intermolecular interactions between X−H donors (X = C, N, O) and electron-rich π-ligands (alkynes, arenes, and cyclopentadienyl ligands) in crystalline organometallic complexes have been investigated from data retrieved from the Cambridge Structural Database as discussed by the authors.

TL;DR: In this paper, a 19F NMR kinetic study of the isomerization of 2 in THF at 322.6 K reveals a first-order law riso = kiso[2], with kiso = f + g[2]0 + (h + i[2]-0)/([PPh3] + j) (f = (1.66 ± 0.03) × 10-4 s-1, g = (2.5 ± 0).

TL;DR: In this article, the reaction of the highly electrophilic borane B(C6F5)3 with the carbonyl Lewis bases benzaldehyde, acetophenone, ethyl benzoate, and N,N-diisopropylbenzamide led to isolation of the crystalline adducts 1-H, 1-Me, 1OEt, and 1-NPr, respectively, in good to excellent yields.

TL;DR: In this article, the phase-transitional behavior of hexafluorophosphate salts (C5H5)2Co][PF6] has been investigated, which undergoes two fully reversible crystal-to-crystal phase transitions.

TL;DR: Ruthenium complexes with (oxazolinylferrocenyl)phosphines, such as RuCl2(PPh3), have been shown to be very effective catalysts for asymmetric hydrosilylation of not only ketones but also an imine.

TL;DR: The Heck reaction has been computationally studied for a carbene-stabilized palladium catalyst employing a density functional method with a gradient-corrected exchange-correlation functional as mentioned in this paper.

TL;DR: The synthesis and characterization of the mono-and bis(N-isopropyl-2-(isopropylamino)troponiminato)yttrium amides is described in this article.

TL;DR: In this paper, a detailed theoretical investigation was performed on all of the transition states and intermediates involved in the Si−H oxidative addition of H−SiR3 (R = H, Cl, or Me) to Pt(PH3)2, and it was reasonably concluded that platinum(0)-catalyzed hydrosilylation of ethylene proceeds through a Chalk−Harrod mechanism.

TL;DR: The multinuclear complexes 1,3,5]-trans-I(Et3P)2PtC≡C]3C6H3 (1) and 1,2,4,5-[trans-Et 3P]4C 6H2 (2) were prepared via σ-acetylide synthetic methodologies by reaction of tri-and tetraethynylbenzene with diiodobis(triethylphosphine)platinum.

TL;DR: The synthesis and reactivity of a wide range of titanium benzamidinates is described in this article, where the authors describe the synthesis and reactionivity of different types of benamidinate derivatives.

TL;DR: In this paper, the dilithium salts of N,N,N´,N'',N`''''-tris(trimethylsilyl)diethylenetriamine (1), N-methyl-N''-N´''-n''''-,N'''',n'' ''-bis( trimethyl silyl)-dimethylnetriamines (2, N'', N´''-, N''''−n''−bis(diisopropyl)-denetriamide (3,

TL;DR: The reactions and adducts of 1,3,4,5,tetramethylimidazol-2-ylidene with bis(pentamethylcyclopentadienyl)magnesium, -calcium, -strontium, -barium, or -zinc are described in this article.

TL;DR: A series of group 14 metalloles, from silole to stannole, together with cyclopentadiene, having two thienyl groups at the 2,5 positions, have been prepared.

TL;DR: In this paper, a series of R3SnO2CR' compounds, where R = Me (1), Et (2), Bu-n (3), Ph (4), and cHex (5) and R'CO2 is the carboxylate residue of 2-[(E)-2-(2-hydroxy-5-methylphenyl)-1-diazenyl]benzoic zoic acid, has been shown by multinuclear magnetic resonance studies to be monomeric in solution.

TL;DR: In this paper, a series of mono-and binuclear cyclometalated gold(III) complexes containing the tridentate C∧N∧C ligand was developed using K[AuCl4] and the organomercury(II) compound Hg(C∧ N∧CH)Cl as precursors.