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Fragmentation

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  • The inner lives of molecules

    Quantum mechanics rules. It dictates how particles and forces interact, and thus how atoms and molecules work -- for example, what happens when a molecule goes from a higher-energy state to a lower-energy one. But beyond the simplest molecules, the details become very complex. "Quantum mechanics des more

  • Hot Water in Cold Comets

    Comets, also named “dirty snowballs”, are largely composed of water. An international research team around Andreas Wolf, of the Max-Planck Institute for Nuclear Physics in Heidelberg, Germany, recently succeeded deciphering an important aspect of the way by which water molecules often form in space. more

  • Ascenion Takes an Equity Position in Photonion GmbH

    Ascenion GmbH has acquired shares in Photonion GmbH, a start-up company founded by scientists from the Helmholtz Zentrum München together with two mid-sized companies, Airsense Analytics GmbH, Schwerin, Germany, and Tofwerk AG, Thun, Switzerland. Photonion’s mission is to develop and commercialize a more

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Definition

Eschenmoser fragmentation

Eschenmoser fragmentation The Eschenmoser fragmentation (also called the Eschenmoser-Tanabe fragmentation) is the chemical reaction of α,β-epoxyketone s (1) with aryl sulfonylhydrazines (2) to give alkyne s (3) and carbonyl compounds (4). This ... more

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