Results 91 to 100 of about 18,404 (278)

State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production

open access: yesChemistry – A European Journal, EarlyView.
The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin   +3 more
wiley   +1 more source

Integration of Low-grade Waste Heat System Based on Lithium Bromide Refrigeration in a Polysilicon Industry

open access: yesChemical Engineering Transactions, 2019
Heat Integration is a crucial method for making reasonable and effective utilization of waste heat in industrial enterprises. In a polysilicon production enterprise, some hot streams are cooled to a specified temperature by circulating cooling water ...
Youlei Wang, Yufei Wang, Xiao Feng
doaj   +1 more source

EFFECTIVENESS OF ABSORPTIVE LITHIUM BROMIDE REFRIGERATORS WITH TWO-STEP GENERATION OF WORKING AGENT VAPOUR

open access: yes, 1992
Subject of investigation: absorptive lithium bromide refrigerators with a two-step generation of the working agent vapour. Purpose of the work: increase of the energy effectiveness and reduction of the material consumption of an absorptive lithium ...
Ckharasani, Said Dadvar
core  

Light‐Induced Anion Translocation to Control Helical Folding in an Artificial Communication System

open access: yesChemistry – A European Journal, EarlyView.
Anion‐induced helical folding of an oligomer is controlled indirectly and reversibly by light through anion uptake/release by a photoresponsive receptor. Thus, a light signal is processed into a chemical signal in a communication‐type three‐component supramolecular system.
Indigo M. Bekaert   +5 more
wiley   +1 more source

Absorption of water vapour into lithium bromide-based solutions with additives using a simple stagnant pool absorber

open access: yes, 1999
Absorption of water vapour into the 50 mass % lithium bromide solution with four eight-carbon alcohol additives such as n-octanol, 2-octanol, 3-octanol, and 2-ehtyl-1-hexanol were investigated by using a simple stagnant pool absorber, Four solutions of ...
Lee, Huen, Yu, SI, Kim, JS
core  

Strain Release of 1‐Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs

open access: yesChemistry – A European Journal, EarlyView.
Over the past decade, the interest in azetidines has continuously risen, by virtue of their highly appealing pharmaceutical properties. Monocyclic, spirocyclic, and bridged azetidines can be accessed by leveraging 1‐azabicyclo[1.1.0]butanes as precursors.
Yuri Gelato   +3 more
wiley   +1 more source

Synthesis and Functional Properties of Fluorinated Phosphonate‐Substituted Porphyrins: Excellent Photosensitizers and Robust Precursors for Photoactive Langmuir–Schaefer Films

open access: yesChemistry – A European Journal, EarlyView.
This is a comprehensive study of new family of high functionalized meso‐tetraarylporphyrins. A synthetic approach to phosphonate‐substituted fluorinated porphyrins was developed. These compounds were investigated with respect to singlet oxygen generation and photostability.
Azhar Kechiche   +8 more
wiley   +1 more source

SO2 Transfer Enabled by an Easy‐to‐Handle Ionic Liquid

open access: yesChemistry – A European Journal, EarlyView.
Best of both worlds: The ionic liquid [NEt3Me][Cl(SO2)n] unites the atom economy and low cost of sulfur dioxide with the safety and applicability of common surrogates, streamlining SO2 transfer to access to 3‐sulfolenes, sulfonamides, and SuFEx reagents.
Johanna S. Sturm   +11 more
wiley   +1 more source

Optimized Design of Hot Water Storage in Solar Thermal Cooling Facilities [PDF]

open access: yes, 2008
Solar thermal installations can provide a significant contribution to the energy needs of cooling demand of single family buildings. Unfortunately oversizing facility elements is not uncommon. Most of the design flaws concern collector field or auxiliary
Rodríguez, María del Carmen   +4 more
core  

Oxidative Generation and Reactivity of the Cyclopropyl Radical From a Martin Silicate

open access: yesChemistry – A European Journal, EarlyView.
A photoredox strategy employing Martin silicates enables the oxidative generation and controlled capture of cyclopropyl radicals, including the naked one, long considered challenging intermediates. The method affords functionalized cyclopropanes through both Giese‐type additions and dual nickel/photoredox C(sp3)−C(sp2) cross‐couplings.
Amal Lakhal   +3 more
wiley   +1 more source

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