Browsing by Subject "MALDI-TOF mass spectrometry"

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    Dinuclear N-heterocyclic carbene silver complexes: Synthesis, luminescence and catalytic studies
    (Elsevier B.V., 2019) Demir Atlı D.; Gülle S.
    A new dibenzimidazole compound (1) and three dibenzimidazolium salts (2a-2c) were prepared. Reactions of these salts with silver(I) oxide in methanol led to dinuclear N-heterocyclic carbene silver complexes (3a-3c). All of the compounds were characterized by 1H NMR, 13C NMR and elemental analyses. Molecular weights of the silver complexes were confirmed by MALDI-TOF mass spectrometry. Preliminary catalytic studies using all the silver complexes were performed on three-component coupling reaction of p-formaldehyde, piperidine and phenylacetylene. Complexes 3a and 3c exhibited good catalytic activities under neat conditions. The silver complexes showed luminescence properties in CH3CN at room temperature. © 2018 Elsevier B.V.