Beilstein J. Org. Chem.2019,15, 2486–2492, doi:10.3762/bjoc.15.241
an endo location of the cation. Ion mobility mass spectrometry (IM-MS) is a powerful tool to study structural features such as the endo/exocomplexation of supramolecular complexes [11][15][16][17][18]. Drift tube ion mobility mass spectrometry (DT-IMMS) enables the determination of structure-related
difference in endo/exocomplexation is clear in IM-MS, when the larger PF6− anion is used in the experiment. For complexes with smaller anions BF4− and I− the structural conclusions are more difficult to draw based only on CCS values, as the difference between the endo and exo complexes is smaller. To obtain
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Graphical Abstract
Scheme 1:
Structures of tetraisobutylpyridine[4]arene 1 and tetraisobutylresorcin[4]arene 2.
Beilstein J. Org. Chem.2018,14, 1723–1733, doi:10.3762/bjoc.14.146
, aiding in the binding of polar guests such as N-oxides.
Keywords: aromatic N-oxides; C–H···π Interactions; ditopic receptors; endo/exocomplexation; host–guest chemistry; resorcinarenes; Introduction
Resorcinarenes are macrocyclic compounds with a bowl-shaped cavity stabilised by circular
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Graphical Abstract
Figure 1:
The chemical structures of C-ethyl-2-bromoresorcinarene (BrC2), C-propyl-2-bromoresorcinarene (BrC3...