Results 1 to 10 of about 278,143 (266)

Bis(2,2,2 trifluoroethyl) Phosphonate as a Convenient Precursor for the Synthesis of H-Phosphonates

open access: yesMolecules
A microwave-assisted synthesis of dialkyl and cyclic H-phosphonates via bis(2,2,2 trifluoroethyl) phosphonate (BTFEP) is described. This method enables the synthesis of various cyclic H-phosphonates and hetero-substituted dialkyl H-phosphonates by simple
Jean-Marie Pohl   +4 more
doaj   +1 more source

A Review on the Valorization of Macroalgal Wastes for Biomethane Production

open access: yesMarine Drugs, 2016
The increased use of terrestrial crops for biofuel production and the associated environmental, social and ethical issues have led to a search for alternative biomass materials. Terrestrial crops offer excellent biogas recovery, but compete directly with
Yann Nicolas Barbot   +2 more
doaj   +1 more source

Synthesis of Ti(OH)OF ⋅ 0.66 H2O in Imidazolium‐based Ionic Liquids

open access: yesChemistryOpen, 2021
The influence of the cation of imidazolium‐derived ionic liquids (ILs) on a low‐temperature solution‐based synthesis of hexagonal tungsten bronze (HTB) type Ti(OH)OF ⋅ 0.66 H2O and bronze‐type TiO2(B) is investigated.
Melanie Sieland   +3 more
doaj   +1 more source

Excited-State Relaxation in Luminescent Molybdenum(0) Complexes with Isocyanide Chelate Ligands

open access: yesInorganics, 2020
Diisocyanide ligands with a m-terphenyl backbone provide access to Mo0 complexes exhibiting the same type of metal-to-ligand charge transfer (MLCT) luminescence as the well-known class of isoelectronic RuII polypyridines.
Patrick Herr, Oliver S. Wenger
doaj   +1 more source

Determining Inversion Barriers in Atrop- isomers – A Tutorial for Organic Chemists

open access: yesCHIMIA, 2016
Dynamic behavior is a fascinating property of natural and artificial systems and its understanding has significantly impacted the transformation of molecular interchanges into controlled molecular motion. In this tutorial, the key descriptors of
Michel Rickhaus   +2 more
doaj   +1 more source

The wide synthetic versatility of five membered rings containing phosphorus

open access: yesQuímica Nova, 2000
The chemistry of cyclopentadiene rings has been widely studied. This review article deals with a similar chemistry of new compounds containing from 1 to 5 phosphorus atoms on the ring substituting the carbon atoms.
Vinicius Caliman
doaj   +1 more source

Dualism of Remarkable Magnesium Ion Conduction with Low Activation Energy over a Wide Temperature Range versus Limited Stability of the Hybrid Composite Electrolyte Mg‐MOF‐74/MgX2/Propylene Carbonate

open access: yesAdvanced Energy & Sustainability Research
A metal–organic framework (MOF) quasi‐solid‐state Mg2+‐ion conductor is prepared with a conductivity of 0.6 × 10−4 S cm−1 already at room temperature. Mg‐MOF‐74 acts as host for MgX2 (X = Cl−, Br−, BF4−) dissolved in propylene carbonate, leading to dry ...
Ruben Maile   +7 more
doaj   +1 more source

Thermo-Acidic Pretreatment of Beach Macroalgae from Rügen to Optimize Biomethane Production—Double Benefit with Simultaneous Bioenergy Production and Improvement of Local Beach and Waste Management

open access: yesMarine Drugs, 2015
Eutrophication is a phenomenon which can rapidly generate masses of marine macroalgae, particularly in areas with high nutrient pollution. Washed ashore, this biomass impairs coastal tourism and negatively affects the coastal ecosystem. The present study
Yann Nicolas Barbot   +2 more
doaj   +1 more source

Anaerobic Digestion of Laminaria japonica Waste from Industrial Production Residues in Laboratory- and Pilot-Scale

open access: yesMarine Drugs, 2015
The cultivation of macroalgae to supply the biofuel, pharmaceutical or food industries generates a considerable amount of organic residue, which represents a potential substrate for biomethanation. Its use optimizes the total resource exploitation by the
Yann Nicolas Barbot   +3 more
doaj   +1 more source

Time‐of‐Flight Secondary Ion Mass Spectrometry Revealing the Organocatalyst Distribution in Functionalized Silica Monoliths

open access: yesChemistryOpen
Hierarchically porous monolithic silica shows promise as a carrier material for immobilized organocatalysts. Conventional analysis usually includes physisorption, infrared spectroscopy and elemental analysis, among others, to elucidate the pore space and
Raoul D. Brand   +3 more
doaj   +1 more source

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