Results 91 to 100 of about 543,485 (263)
Solvent-free fluidic organic dye lasers
We report on the demonstration of liquid organic dye lasers based on 9-(2-ethylhexyl)carbazole (EHCz), so-called liquid carbazole, doped with green- and red-emitting laser dyes. Both waveguide and Fabry-Perot type microcavity fluidic organic dye lasers were prepared by capillary action under solvent-free conditions. Cascade Förster-type energy transfer
Eun Young, Choi +7 more
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Enzyme catalysis with small ionic liquid quantities [PDF]
Enzyme catalysis with minimal ionic liquid quantities improves reaction rates, stereoselectivity and enables solvent-free processing. In particular the widely used lipases combine well with many ionic liquids.
Fischer, Fabian +2 more
core
The economic synthesis of quinaldinium chlorochromate(VI), C10H9NH[CrO3Cl], (QnCC) was performed by using a 1:1:1 stoichiometric amounts of CrO3, HCl (aq) and quinaldine.
Melek Canbulat Özdemir
doaj +1 more source
Synthesis of cholesterol-reducing sterol esters by enzymatic catalysis in bio-based solvents or solvent-free [PDF]
Enzymatic synthesis of a β-sitosterol ester in bio-based solvents was compared with conventional solvents. Limonene and p-cymene gave higher initial reaction rates than n-hexane, and comparable conversions after 24 hours (∼75%).
Attard, Thomas M. +4 more
core +1 more source
THE ADDITION OF PETROLEUM BENZIN IN MIXING OF CRUDE PALM OIL AND METHANOL ON BIODIESEL PRODUCTION
Research on transesterification of crude palm oil (CPO) using petroleum benzin as solvent has been done. This research aims to determine the optimum concentration of catalyst KOH and NaOH, mole ratio of methanol to oil, volume ratio of solvent to oil ...
Abdullah Abdullah +3 more
doaj +1 more source
SOLVENT FREE, ONE POT SYNTHESIS OF SYMMETRIC XANTHENE DYES AND THEIR ELECTROCHEMICAL STUDY [PDF]
Ghulam Shabir, Aamer Saeed
openalex +1 more source
Free Energy, Enthalpy and Entropy from Implicit Solvent End-Point Simulations
Free energy is the key quantity to describe the thermodynamics of biological systems. In this perspective we consider the calculation of free energy, enthalpy and entropy from end-point molecular dynamics simulations. Since the enthalpy may be calculated
Federico Fogolari +6 more
doaj +1 more source
Abstracts of Papers of the American Chemical ...
Giannelis, E. P. +6 more
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Ultrasound Assisted One-pot Synthesis of Dihydropyrimidinones Using Holmium Chloride As Catalyst [PDF]
A simple and green chemical procedure was reported for the synthesis of dihydropyrimidinones from various aldehydes, ethyl acetoacetate and urea or thiourea using holmium chloride as catalyst.
S. Kakaei, H. Sid Kalal, H. Hoveidi
doaj
Solvent-Free Synthesis of Imidazo [1,2-a] pyridin-tetrazolo [1,5-a] Quinolines via an IMCR One-Pot Process [PDF]
Sandra C. Ramírez‐López +2 more
openalex +1 more source

