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Substitution

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  • Breaking the bond: To take part or not?

    Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exc more

  • 'Ion billiards' cue novel material synthesis method

    A team of Hokkaido University researchers has developed a novel material synthesis method called proton-driven ion introduction (PDII) which utilizes a phenomenon similar to "ion billiards." The new method could pave the way for creating numerous new materials, thus drastically advancing materials s more

  • A seaweed derivative could be just what lithium-sulfur batteries need

    Lithium-sulfur batteries have great potential as a low-cost, high-energy, energy source for both vehicle and grid applications. However, they suffer from significant capacity fading. Now scientists from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have made a surpr more

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Definition

Electrophilic substitution

Electrophilic substitution Electrophilic substitution reactions are chemical reactions in which an electrophile displaces another group, typically but not always hydrogen . Electrophilic substitution is characteristic of aromatic compounds. El ... more

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