Anion inclusion without auxiliary hydrogen bonds: X-ray structure of the iodide cryptate of a macrotricyclic tetra-quaternary ammonium receptor

Franz Peter Schmidtchen, Gerhard Müller

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

The X-ray crystal and molecular structure of [I-L 4+]3+ 3I-.3MeCN·H2O, L = N4Me4(C6H12)6, shows one iodide anion to be encapsulated symmetrically into the spherical intramolecular cavity of the macrotricycle L4+ and held in place by the electrostatic potential of the four quaternary ammonium sites arranged at the corners of an almost perfect tetrahedron; the N+⋯I- distances average to 4.54(2) Å whereas the distances between iodide and the carbon atoms of the [CH2]6 chains are of van der Waals type or longer.

Original languageEnglish
Pages (from-to)1115-1116
Number of pages2
JournalJournal of the Chemical Society, Chemical Communications
Issue number16
DOIs
StatePublished - 1984

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