Showing papers in "Inorganica Chimica Acta in 1969"

TL;DR: In this article, the preparation and properties of halogenotris(tertiaryphosphine)cobalt complexes, CoXL 3 (X = Cl, Br, I; L = PPh 3, PBuPh 2, PBzPh 2 ), are described.

TL;DR: In this article, the interaction of confugated and cumulated dienes with π-allylic palladium complexes is described as part of palladium-catalysed synthesis of polyunsaturated carboxylic acid derivatives from a diene, an alcohol and carbon monoxide or from an allylic compound and carbon dioxide.

TL;DR: The preparation and properties of a new series of Vit B 12 model compounds, - cobalt chelates of bis(diacetylmonoximeimino)-propane 1,3 are reported in this paper.

TL;DR: In this article, the physical and chemical properties of the two cluster carbonyls are discussed, and two syntheses seem to be of particular practical significance, owing to easy availability of Rh 2 (CO) 4 Cl 2, high yield and extreme simplicity.

TL;DR: In this article, a monomeric tetra-cordinated cations of the type [M(2,6-LNO) 4 ] 2+ (M = Fe, Co, Ni, Cu, Zn) were synthesized and studied.

TL;DR: A number of new coordination compounds containing N-methyl imidazole (NMIz) as a ligand is reported in this article, where the ligand NMIz is believed to be coordinated via the pyridine nitrogen of the molecule, to all metal ions.

TL;DR: In this paper, it has not been possible to obtain any evidence for the existence of either HRh(CO) 4 or Rh 2 (CO) 8. Reaction of [Rh(CO] 4 ] − derivatives with acids did not yield the expected HRh[CO]4 and Rh 2(CO), 8.

TL;DR: In this paper, the authors studied the kinetics of the reaction of metal hexacarbonyls with tetraethylammonium azide in acetone solution and showed that the activation energy for this step depends on the metal and decreases in order Cr>Mo>W. The reaction products NEt 4 [M(CO) 5 NCO] are formed by an S N 2 type mechanism suggesting a primary, rate-determining attack of the azide anion to the carbon atom of a CO group.

TL;DR: In this article, the 1:1(Cu), 1:2(Cu, Ni, Co), and 1:3(Ni, Co) complexes with dimepia ligand were obtained.

TL;DR: In this article, all possible infrared active frequencies were observed for (SiO) 2, e.g., 809.5, 628, and 311 cm −1 were observed.

TL;DR: In this article, the coordination properties of terpyridyl complexes of mercury(II)halides, perchlorates and nitrates are compared with their zinc and cadmium analogs.

TL;DR: In this paper, the results of electronic and low frequency vibrational spectral and magnetic susceptibility measurements are presented and used to assign coordination geometries of N-methylimidazole with divalent cobalt through zinc.

TL;DR: In this paper, a double octahedral cluster metal-carbonyl system was described for the [Rh12(CO)30]2− anion, which represents the first known example of a double-Octahedral system.

TL;DR: The hydrogen transfer from alcohols or alkoxides to olefins is catalysed by the RhCl 3 -tertiary phosphines system as discussed by the authors, and the change in the catalytic activity with the nature of the phosphines have been correlated with the ability of Rh 0 phosphine complexes to abstract hydrogen from alkoxide.

TL;DR: In this paper, the magnetic moments and visible absorption data were used to infer the stereochemistry of six coordinate polymeric six coordinate complex with both halide and 4,4′-bipyridine bridging.

TL;DR: The trichlorides of titanium, vanadium and chromium were found to react with trimethylphosphate to give methyl chloride and trisdimethoxyphosphato-complexes of pseudooctahedral or octahedral structures.

TL;DR: In this article, the preparations of the following complexes of 2-methylimidazole (L): ML 4 X 2 (M = Co; X = I, NO 3.M = Ni, X = Cl, Br, I, No 3.

TL;DR: In this paper, a series of Zn(4-Zpyridine N-oxide)6(ClO)4)2 complexes were characterized via elemental analyses, magnetic moments, molar conductance, conventional infrared spectra, and electronic absorption spectra.

TL;DR: In this article, the crystal structure of N,N′ethylene-bis-(acetylacetoneiminato)methyl-cobalt(III), CoO2N2C13H23 has been determined by the heavy atom method and refined to a conventional R-value of 0.090 by the least-squares method using three-dimensional data.

TL;DR: In this article, a trivalent metal chlorides with diisopropyl methylphosphonate was shown to have polynuclear configurations, involving eight-membered phosphonate bridges and possibly four-memered chelate rings, with a distorted O h ligand-field symmetry.

TL;DR: In this paper, infrared data for five-coordinate complexes of diphenylmethylarsine oxide (DME) and diphenymethylmethylphosphine (PHO) was reported for which the same basic structure was postulated.

TL;DR: The tetra-allyl Uranium obtained from UCl4 and C3H5 Mg Br is not thermally stable above −20°C and burns spontaneously in the air as discussed by the authors.

TL;DR: In this article, the preparation of morpholine complexes of nickel(II), copper(II) and zinc(II)-sulphates is described, and possible structures for these complexes in the solid state are discussed.

TL;DR: In this paper, the infrared inactive a′ 1 CO stretching frequencies of Fe( 12 CO) 5 have been calculated and found in very good agreement with previous Raman data.

TL;DR: In this article, the ultraviolet and visible spectra of Mo 2 O 3 (C 5 H 7 O 2 ) 4 and MoO 2 (C 7 O 3 ) 2 have been obtained in a variety of solvents and the electronic transitions assigned.

TL;DR: In this paper, the isomers of the Co(en)(dien)Cl2+ have been synthesized and their infrared and visible absorption spectra have been described in detail.

TL;DR: In this paper, the pK A 2 value was found to be 6.4 which is in accordance with our prediction that pk A 2 was at least 1.35.

TL;DR: The relative stabilities and rates of exchange of chelating dienes coordinated towards monovalent rhodium (Rh 2 (diene) 2 Cl 2 ) have been investigated by NMR as discussed by the authors.

TL;DR: In this article, the vibrational spectrum of C 4 H 6 Fe(CO) 3 has been studied and an assignment of the frequencies on the basis of the local symmetry of the Fe( CO) 3 fragment (C 3v ) explains most of the observations, but the FeC and O stretching modes of E symmetry are both split.