Results 131 to 140 of about 6,387 (179)

Solid−Liquid Equilibria of Dibenzothiophene and Dibenzothiophene Sulfone in Organic Solvents

Journal of Chemical & Engineering Data, 2007
This work reports the solid−liquid equilibria of several binary systems formed by solvent (1) + dibenzothiophene (2) and solvent (1) + dibenzothiophene sulfone (2). At least six experimental points were obtained to trace the solid−liquid equilibrium curve, using the visual technique to determine the change of phase.
Luis F. Ramírez-Verduzco, Aarón Rojas-Aguilar, José A. De los Reyes, José A. Muñoz-Arroyo, Florentino Murrieta-Guevara   +4 more
openaire   +1 more source

Sonochemical decomposition of dibenzothiophene in aqueous solution

Water Research, 2001
Dibenzothiophene is decomposed rapidly by sonication in aqueous solution. Decomposition of dibenzothiophene follows a first-order reaction kinetics. The rate constant was found to increase with increasing ultrasonic energy intensity, temperature, and pH and decrease with increasing initial dibenzothiophene concentration.
Pei Chiu, C P Huang, Il-Kyu Kim
exaly   +3 more sources

The thermodynamic properties of dibenzothiophene

The Journal of Chemical Thermodynamics, 1991
Measurements leading to the calculation of the ideal-gas thermodynamic properties for dibenzothiophene are reported. Thermochemical and thermophysical properties were determined by adiabatic heat-capacity calorimetry, differential-scanning calorimetry (d.s.c.), comparative ebulliometry, and inclined-piston manometry.
R.D. Chirico, S.E. Knipmeyer, A. Nguyen, W.V. Steele   +3 more
openaire   +1 more source

Geosynthesis of dibenzothiophene and alkyl dibenzothiophenes in crude oils and sediments by carbon catalysis

Organic Geochemistry, 2009
Sediment extracts and crude oils have been shown to contain methyl substituted biphenyls and dibenzothiophenes, with isomer distributions suggesting a geochemical relationship between the two compound classes. Laboratory simulation experiments have shown that carbon catalyses the reaction between surface adsorbed sulfur and biphenyl to form ...
Asif, M., Alexander, Robert, Fazeelat, T., Pierce, K.   +3 more
openaire   +2 more sources

Electronic spectra of dibenzothiophene

Spectrochimica Acta Part A: Molecular Spectroscopy, 1971
Abstract The polarized absorption spectrum of dibenzothiophene near 330 nm has been measured in the pure crystal and in host lattices of fluorene, hexamethylbenzene, biphenyl and (polycrystalline) n-heptane. The assignment 1A1 ← 1A1 is confirmed for this electronic transition.
A. Bree, R. Zwarich
openaire   +1 more source

Aromatic Metamorphosis of Dibenzothiophenes

Synlett, 2016
In general, aromatic cores are stable owing to their resonance energies. Different from facile peripheral modifications of aromatic cores, transforming an aromatic core into a different skeleton is ambitious and has attracted only little attention as a general synthetic method.
Hideki Yorimitsu, Dhananjayan Vasu, M. Bhanuchandra, Kei Murakami, Atsuhiro Osuka   +4 more
openaire   +1 more source

Synthesis and Lanthanide Coordination Chemistry of Phosphine Oxide Decorated Dibenzothiophene and Dibenzothiophene Sulfone Platforms

Inorganic Chemistry, 2014
Syntheses for new ligands based upon dibenzothiophene and dibenzothiophene sulfone platforms, decorated with phosphine oxide and methylphosphine oxide donor groups, are described. Coordination chemistry of 4,6-bis(diphenylphosphinoylmethyl)dibenzothiophene (8), 4,6-bis(diphenylphosphinoylmethyl)dibenzothiophene-5,5-dioxide (9) and 4,6-bis ...
Daniel, Rosario-Amorin, Sabrina, Ouizem, Diane A, Dickie, Robert T, Paine, Roger E, Cramer, Benjamin P, Hay, Julien, Podair, Lætitia H, Delmau   +7 more
openaire   +2 more sources

Kinetics of dibenzothiophene hydrodesulfurization

Journal of Catalysis, 1991
Hydrotreating is a process in which organically bound sulfur and nitrogen compounds are removed from petroleum feedstocks to produce processible, stable, and environmentally acceptable liquid fuels or lubes. Essentially two types of catalysts, which differ in composition, are in use in current refineries: one is sulfided CoO-MoO{sub 3}/{gamma}-Al{sub 2}
openaire   +1 more source

Catalytic Desulfurization of Dibenzothiophene with Palladium Nanoparticles

Inorganic Chemistry, 2008
The thermal reduction of [(PEt3)2PdMe2] (1 mol%), which was produced in situ from [(PEt3)2PdCl2] (1) and 2 equiv of MeMgBr in toluene solvent, yielded palladium nanoparticles that in conjunction with MeMgBr effected the desulfurization of dibenzothiophene (DBT).
Jorge, Torres-Nieto, Alma, Arévalo, Juventino J, García   +2 more
openaire   +2 more sources

Degradation of dibenzothiophene by Pseudomonas putida

Letters in Applied Microbiology, 1994
The microbial degradation of dibenzothiophene (DBT) and other organosulphur compounds such as thiophene-2-carboxylate (T2C) is of interest for the potential desulphurization of coal. The feasibility of degradation of DBT and T2C by Pseudomonas putida and other bacteria was analysed.
Magda, Constanti, A, Bordons, Jaume, Giralt   +2 more
openaire   +2 more sources