Apomyoglobin has been reconstituted with the lanthanide porphyrin complex, ytterbium(III)mesoporphyrin IX. The reconstituted material exhibits absorption and magnetic circular dichroic spectra significantly different from those of the ytterbium porphyrin itself. The sizeable, positive extrinsic ...

Ethylenediamine, as important chemical raw materials and fine chemical intermediates, has been widely applied in various industries. Detection of Ethylenediamine is highly desirable for a number of chemical industries due to its potential threat to human health. Chemical sensing bears an advanta...

Lanthanides ion complexes have been intensively investigated as light emitting materials due to their interesting photophysical properties, such as narrow line luminescence with a long lifetime, large Stokes shift and high luminescence quantum efficiency. Here we report the synthesis, structural...

Europium and terbium acetylacetonate hydrates were doped into poly methyl methacrylate (PMMA). Efficient purplish-red and green fluorescence was obtained from europium acetylacetonate hydrates (EAH) and terbium acetylacetonate hydrates (TAH) doped PMMA respectively. Judd–Ofelt parameters Ω2 (1...

The effect of fluorination on spectroscopic properties of europium and terbium trifluoroacetylacetonates Ln(TFAA)3·2H2O, Ln(TFAA)3·Phen and Ln(TFAA)3·Bpy in the solid state have been investigated. A threefold increase in the luminescence intensity of europium compounds at -CF3 for −CH3 substi...

Starting with ruthenium(III) acetylacetonate a homogeneous catalyst is formed which catalyzes the release of 1 equivalent of hydrogen gas from the dehydrogenation of ammonia–borane in toluene solution at low temperature in the range 50–65 °C. Mercury poisoning experiments showed that the cata...

Ruthenium(III) acetylacetonate was employed for the first time as homogeneous catalyst in the hydrolysis of sodium borohydride. Ruthenium(III) acetylacetonate was not reduced by sodium borohydride under the experimental conditions and remains unchanged after the catalysis. Poisoning experiments ...

The crystal and molecular structure of (η2-ethyelene)(4-methyl-4-exo-n-butyl-1-anti-η2-methylene-[(2,5-η4-cyclohexadiene)rhodium-2,4-O,O′-pentanedionate]- rhodium-2,4-O,O-pentanedionate has been determined by an X-ray diffraction study. Comparison of the data obtained with those of a previou...

The decomposition of La-valerate (La(C4H9CO2)3·xH2O (x ≈ 0.45)) and La-caproate (La(C5H11CO2)3·xH2O (x ≈ 0.30)) was studied upon heating at 5 °C/min in a flow of argon. Using a variety of techniques including simultaneous TG-DTA, FTIR, X-ray diffraction with both laboratory Cu Kα and synch...

TiO2 compact layers are wildly used for electron selective contact in perovskite solar cells. The function of TiO2 selective contact can be modified by doping metal ions in the TiO2 compact layers. As lanthanide elements usually exhibit unique properties for their incompletely occupied 5d or 4f ...

The interaction of the donor La(III)acetylacetonate, [La(acac)3], with iodine as a σ-acceptor and with 2,3-dichloro-5,6 dicyano-1,4-benzoquinone, (DDQ) as a π-acceptor have been studied in the solvents CH2Cl2, CHCl3 and CCl4 at room temperature. The obtained results indicate the formation of 1...

Lanthanum-gallate nanoparticles have been prepared via chemical vapour synthesis (CVS) starting from metal acetylacetonates as solid precursors evaporated using a CO2-laser. The temperature in the CVS reactor has significant influence on crystallinity and phase composition of the as-synthesized ...

The porous and high surface area of lanthanum oxide was obtained as a final decomposition product of lanthanum acetylacetonate tetrahydrate. The decomposition course in dry nitrogen was thoroughly studied. Thermal processes occurring throughout the decomposition range (100–800 °C) were monitor...

This is followed by a survey of literature on cesium salts for the period between January 1981 to May 1984. The bibliography searched indicates an interesting pharmacological and behavioral effect for Cs-salts in addition to its well known physiological and itopic effects. A pattern of clinical ...

The role of ionic interactions between sodium dodecyl sulfate, SDS, and sapphire surfaces have been studied using specular neutron reflection to determine the structure and composition of adsorbed surfactant layers. Increasing the pH of the solution from 3 to 9 reduces the adsorption by reversin...

The synthesis of two macrocycles containing two bipyrazolic subunits, with different side arms is reported. These structures were characterised by 1H NMR, 13C NMR, mass spectroscopy and elemental analysis. The macrocycle bearing a hydroxyl group in the side arms, crystallizes in triclinic (S.G.:...

IntroductionThe purpose of this study was to compare tooth discoloration that occurs in teeth filled with ProRoot MTA (DENTSPLY Tulsa Dental Specialties, Tulsa, OK) or Biodentine (Septodont, Saint Maur des Fossés, France) over the course of 1 year.

ObjectivesInvestigation of hydration, chemical, physical properties and porosity of experimental calcium silicate-based sealers.

A reasonable and economic process to achieve the comprehensive utilization of waste from production of zirconium oxychloride would benefit sustainable development of zirconium industries and reduce environmental pollution. In this paper, wollastonite was prepared from spent caustic liquor and zi...

IntroductionResin sealers with biocompatible and bioactive additives have been used in clinical practice. Recently, a calcium silicate root canal sealer was introduced under the name BioRoot RCS (Septodont, Saint Maur-des-Fossés, France). The aim of this study was to evaluate the effects of Bio...