Both absorption Mössbauer spectroscopy and magnetic susceptibility measurements on tris(β-diketonato)iron(III) and cobalt(III) compounds indicate that ligands which have phenyl group as a substituent are more stable to γ-ray radiolysis, in accordance with previous results of emission Mössbauer...
DFT calculations showed that [Fe(acac)3] (where acac = acetylacetonato) is high-spin, with a negative D3 distortion from the octahedral ligand field. Calculations further showed that, although both the fac and mer isomers of complexes [Fe(CF3COCHCOR)3], where R = C4H3S or C4H3O, can exist, the m...
Photo-assisted activation of non-catalytic substrates using an excimer lamp for subsequent electroless copper plating is described. The palladium films formed and the π-methallyl-dibenzoylmethyl-palladium(II) layers used were characterized using ultraviolet spectrophotometry and Fourier transfo...
Nanocrystals of semiconducting, highly-doped metal oxides present localized surface plasmon resonance properties responsible for intense optical absorption in the near-infrared (NIR) spectral range. These features make them strong candidates for designing “new generation”, spectrally-selective...
Biomimetic sulfur-deficient indium sulfide (In2.77S4) was synthesized by a template-assisted hydrothermal method using leaves of Mimosa pudica as a template for the first time. The effect of this template in modifying the morphology of the semiconductor particles was determined by physicochemica...
Indium tin oxide (ITO) nanoparticles and gallium-doped indium tin oxide (GITO) nanoparticles with various molar ratios of dopants were prepared by a solution method in oleylamine. Characterization of crystal, morphology, and optical properties was carried out using X-ray diffraction (XRD), trans...
The electronic structures of aluminium, gallium and indium tris-acetylacetonates were investigated by methods of photoelectron, absorption electronic spectroscopy and quantum chemistry. The experimental and theoretical ionization energies and electron transition energies were determined; the nat...
Novel indium complexes [(CH3)2In(OR)]2 (1–7) were synthesized using a series of donor-functionalized alkoxide ligands as potential precursors for thin-film applications. These complexes showed dimeric configurations with two μ2-O bridging between the metal centers. Moreover, the indium metal c...
Highly conductive and transparent amorphous IZO films were fabricated by combining deep ultraviolet (DUV) excimer laser irradiation with solution combustion synthesis at low temperature. The influence of laser energy densities on the crystallinities, surface morphologies, and optical and electri...
Aminopropylsilica gel (APSG) was obtained by the modification of silica gel with 3-aminopropyltriethoxy silane. The indium(III) acetylacetonate complex was then subsequently anchored to yield In(acac)3-bonded silica gel (In(acac)3-APSG). The structure was investigated and confirmed by surface ar...
Monometallic indium-doped Pt/Al2O3catalysts for n-heptane reforming were studied using the low-temperature adsorption of nitrogen, XRD, NH3-TPD, and H2-TPR. The introduction of indium at the step of aluminum hydroxide peptization increases SBET of the produced alumina and decreases its size of c...
71Ga NMR spectra of solutions of GaCl3 and Me3Ga, and of binary mixtures of GaCl3Me3Ga, in n-heptane have been recorded. The resonance signals for both Me3Ga and GaCl3 are unchanged on dilution over the temperature range 20–100°C. Mixtures of GaCl3 and Me3Ga show only one resonance signal, w...
Eu2+ and Eu3+ co-doped Ga2O3 nanocrystals (Ga2O3:Eu NCs) were synthesized in an organic phase at a low reaction temperature of 300 °C. The surface of Ga2O3:Eu NCs was passivated by oleylamine (OAm) and acetylacetone (acac). The coexistence of Eu2+ and Eu3+ as well as passivation by acac and OAm...
In the solid state, [(acetylacetonate)-3,4-di(β-naphthyl)-2,5-diarylcyclopentadienone]rhodium(I) (4a, aryl=phenyl, 4b, aryl=m-xylyl) exist as head-to-tail dimers in which each rhodium is bonded to the γ-carbon of the acetylacetonate ligand in the other half of the molecule. These dimers are al...
Cycloaddition of benzyne to 2-pyrones affords the corresponding naphthalene derivatives, the intermediate bicyclic adduct not being detected. Benzopyrones do not react with benzyne under similar conditions probably because this would require the fused aromatic ring to lose aromaticity in the Die...
The synthesis of some new 3-alkyl-7-hydroxy-4-methyl-8-substituted-1H-benzopyran-2-ones, 6-alkyl-7-methyl-2-substituted amino-5H-pyrano[6,5-e] benzoxazol-5-ones, 7-alkyl-8-methyl-3-substituted-2,6-dihydropyrano[6,5-f]-1,4-benzoxazin-6-ones, 7,8-disubstituted-3-ethyl-4-methyl-1H-benzopyran-2-ones...
The compound 2-{5-[2-(2,6-dichlorophenylamino)benzyl]-4-p-tolyl-4H-1,2,4-triazol-3-ylthio}acetate has been prepared and characterized by IR, 1H NMR, 13C NMR and mass spectra. The crystal and molecular structure were further confirmed using single crystal X-ray diffraction. The crystal structure ...
The mechanisms for the Csp3-H functionalization of ethyl 2-(methyl(p-tolyl)amino)acetate have been investigated using DFT method at the M06-2X/6-31+G(d, p) level, and the SMD model was applied to simulate the solvent effect. The computational results show that the Csp3-H functionalization has fo...
Beech wood organosolv lignin was modified with propylene carbonate (PC) in an efficient, facile and solvent-free procedure without using highly toxic and explosive propylene oxide (PO). Comparative studies of the oxyalkylation procedure were performed varying crucial reaction conditions. The res...
Tubular carbonate conduits (TCC) represent the termination of fluid plumbing systems in environments of hydrocarbon seepage and play a relevant role in the discharge of methane from sub-seafloor sediments to the water column. However, the biogeochemical reactions and biological activities involv...
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