Structural studies and binding properties of pendant diazacoronands—precursors to macrocyclic compounds of planar chirality
摘要:
Structural studies of pendant diazacoronands having an N-benzoyl, N-acetyl, O-benzyl or O-benzoyl side arm were performed by means of X-ray and temperature-dependent H-1 NMR experiments. The energies of macroring flipping process were determined for three pendant diazacoronands. The complexation properties of pendant diazacoronands toward the alkali metal cations (Na+, K, and Rb+) were estimated by ESI-MS experiments. (c) 2006 Elsevier Ltd. All rights reserved.
amide protons, UCs adopted only three well-defined geometries in all 10 analyzed crystals. This structural resemblance between conformations of UCs, however, is not translated into similarities in terms of intermolecular interactions and crystal packing. This contradicting intra- and intermolecular solid-state behavior is likely connected with an ability of these macrocyclic compounds to engage in
Structural studies and binding properties of pendant diazacoronands—precursors to macrocyclic compounds of planar chirality
作者:Jarosław Kalisiak、Ewa Kalisiak、Janusz Jurczak
DOI:10.1016/j.tet.2006.04.024
日期:2006.6
Structural studies of pendant diazacoronands having an N-benzoyl, N-acetyl, O-benzyl or O-benzoyl side arm were performed by means of X-ray and temperature-dependent H-1 NMR experiments. The energies of macroring flipping process were determined for three pendant diazacoronands. The complexation properties of pendant diazacoronands toward the alkali metal cations (Na+, K, and Rb+) were estimated by ESI-MS experiments. (c) 2006 Elsevier Ltd. All rights reserved.