Showing papers in "Inorganica Chimica Acta in 1981"

TL;DR: In this paper, the roles of transition metal complexes in catalysis are discussed in light of recent studies on the kinetics and mechanisms of homogeneous catalytic hydrogenation reactions, where transition metal catalytic catalysts are considered.

TL;DR: In this article, the kinetics of anation of Pd(1,1,7,7-Et 4 dien)OH 2+ 2 and Pd (1, 1,4,Et 3 dien), by chloride ion were studied under pressures up to 1 kbar using a high pressure stopped-flow system.

TL;DR: In this paper, the isolation and characterization of a series of transition metal complexes with the ligand bpenH 2 in both neutral and deprotonated forms is described with the neutral ligand acting as a planar N 4 tetradentate.

TL;DR: In this paper, the structure of the title compound has been determined by single crystal X-ray diffraction, and the solvent and temperature dependent solution behavior of this complex has been examined by a combination of 1H, 19F and 31P NMR spectroscopy and conductivity measurements.

TL;DR: A number of mixed olefin diazabutadiene (RN: CR′CR′:NR; DAB) complexes of zero-valent palladium (Pd(DAB)) have been prepared by the simultaneous reactions of an activated Olefin and a DAB with an appropriate source of Pd(O) as mentioned in this paper.

TL;DR: In this article, it was shown that the 6, 10, and 12 vertex deltahedra are inherently rigid and the 7 vertex pentagonal bipyramid is also inherently rigid but can be stereochemically non-rigid in cases where a capped octahedron is an accessible intermediate.

TL;DR: In this paper, a large positive charge on the P-atoms was calculated from the chemical shifts of the methylene protons, which resulted in formation of only one of the possible isomers for the mononuclear rhodium compounds compared with their 1,2-bis(diphenylphosphino)propane analogues.

TL;DR: In this article, the equilibrium constants for the complexes formed between the calcium ion and a series of tetracyclines, i.e., triacycline, oxytetracycine, doxycycline, and minocycline were determined at 37°C in aqueous medium NaCl 0.15 mol dm −3, and the distribution of the complexes was then simulated under physiological conditions at therapeutic levels of the drugs.

TL;DR: In this article, the nuclearity of the complexes in solution is readily identified via 31PNMR using the multiplicity data in the 195Pt satellites, which fall in the range 1571-1619 Hz.

TL;DR: The crystal structures of diquabis(p-chlorophenoxyacetato)copper(II) (1) and diaquabis(phenoxyacetatos)zinc(II, II) (2) have been determined by X-ray methods from diffractometer data and refined by least squares to R 03059 (1), and 03032 (2), for 999 and 1472 'observed' reflections respectively.

TL;DR: Bis(1-methylthyminato-N3) cis -diammineplatinum(II), cis -Pt(NH 3 ) 2 (C 6 H 7 N 2 O 2 )(C 6H 8 N 2O 2 )] + X − (X = Cl −, NO − 3, ClO − 4 ). The pK value for the protonation is 2.05 ± 0.05 as mentioned in this paper.

TL;DR: In this article, a CAD-4 diffractometer using an on-line PDP 11/55 computer for structure analysis was used. The structure was refined to R = 0.119.

TL;DR: In this article, a detailed study of the ability of a range of metallophthalocyanines to photoreduce methylviologen, in the presence of triethanolamine, is reported.

TL;DR: In this paper, the authors used a combination of 1H, 13C and 113Cd NMR spectra for dilute, ca. 10−5M, solutions of a representative set of thiolate complexes of cadmium.

TL;DR: In this article, the crystal structure of 8-hydroxyquinolinatocarbonyltriphenylphosphine, C 28 H 21 O 2 NPRh, was determined from 2995 unique observed reflections obtained with a computer automated diffractometer.

TL;DR: In this article, the synthesis of bis-picollinamide ligands in which N 4 tetradentate function on coordination would enfore severe intramolecular steric interactions is described.

TL;DR: In this paper, cyclic voltammetry and polarography were used to investigate the oxidation of cobalt sandwich complexes with cyclic diolefine and cyclobutadiene ligands.

TL;DR: The discovery of the compounds [Pt(C 2 H 4 ) 3 ] and [PR 3 ] has enabled these species to be used in the synthesis of many new organoplatinum compounds containing metal-metal bonds as discussed by the authors.

TL;DR: In this paper, a full X-ray structural analysis of each type is reported and two district isomorphous series characterised; one (labelled α) for Li+, Na+, K+, Ca2+, Ba2+, the other (labeled β) for Mg2+ and Na+ only.

TL;DR: In this article, neutral and anionic pentachloro- or pentafluorophenyl palladium(II) complexes containing biimidazolate, bibenziimidrazolate or 4,5-4′,5′-tetramethylbiimidzolate anions, which act as tetradentate bridging ligands, have been prepared by reacting mononuclear palladium acetylacetonate complexes with 2,2′-biIMidazol, 2, 2.2′)-bibeniimid

TL;DR: In this paper, a ring-opened ligand L2 of general formula [LnL2(H2O)2] (ClO4)3·2H 2O, where Ln is Tb, Dy, Ho, Er, Tm, Yb or Lu, has been obtained by condensation of 2,6-diacetylpyridine with hydrazine.

TL;DR: In this article, a series of bis(dithiolato)oxotechnetate(V) complexes with saturated, olefinic and aromatic dithioles were obtained using ligand exchange reaction.

TL;DR: In this article, the ESR, magnetic susceptibilities, IR and electronic spectra, and electric conductivities of solid state were measured for a series of nickel complexes of the general formula Ni(diamine) 2 ClX 2 which appeared to contain "tervalent nickel" in order to elucidate to oxidation state of the nickel.

TL;DR: In this paper, the stoichiometries of imidazoline-2(1,3H)-thione (ImT,L) complexes with Co(II and Zn(II) salts have been established by chemical analysis.