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Characterization of Hydrogen-Bonded Supramolecular Assemblies by MALDI-TOF Mass Spectrometry after Ag+ Labeling |
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| Authors: | Katrina A Jolliffe Mercedes Crego Calama Roel Fokkens Nico M M Nibbering Peter Timmerman David N Reinhoudt |
| Abstract: | The high affinity of Ag + ions for aromatic π donors and cyano groups is exploited in a novel MALDI-TOF mass spectrometric method for the identification of hydrogen-bonded assemblies. The interaction with the Ag+ ions—which, for example, can be complexed by two phenyl groups in a sandwich-type manner (see drawing on the right)—provides positively charged assemblies in a nondestructive way. |
| Keywords: | Hydrogen bonds Mass spectrometry Noncovalent interactions Supramolecular chemistry |