Ion‐Mobility Mass Spectrometry for the Rapid Determination of the Topology of Interlocked and Knotted Molecules. (10th July 2019) - Kruve, Anneli
Abstract: A rapid screening method based on traveling‐wave ion‐mobility spectrometry (TWIMS) combined with tandem mass spectrometry provides insight into the topology of interlocked and knotted molecules, even when they exist in complex mixtures, such as interconverting dynamic combinatorial libraries. A TWIMS characterization of structure‐indicative fragments generated by collision‐induced dissociation (CID) together with a floppiness parameter defined based on parent‐ and fragment‐ion arrival times provide a straightforward topology identification. To demonstrate its broad applicability, this approach is applied here to six Hopf and two Solomon links, a trefoil knot, and a [3]catenate. Abstract : Durchtrennung des Gordischen Knotens : Kollisionsinduzierte Dissoziation und Wanderwellen‐Ionenmobilitätsmassenspektrometrie ergeben zusammen eine schnelle Screening‐Methode zur Identifizierung der Topologie von molekularen Hopf‐ und Salomonsknoten, einem [3]Catenat und einem Kleebattknoten, selbst wenn sie in dynamischen kombinatorischen Bibliotheken schnell äquilibrieren.