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Lookup NU author(s): Professor William Clegg
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The title compound, [K(C12H24O6)(C 4H8O)2]I, has iodide anions on crystallographic twofold rotation axes and cations in general positions. The coordination of potassium is distorted hexagonal bipyramidal, with an 18-crown-6 ligand as an equatorial belt and two axial tetrahydrofuran ligands. Distortion is marked, consisting mainly of a significant bending of the axial arrangement [O - K - O = 148.53 (13)°] and a shortening of the two equatorial K - O bonds closest to the axial O atoms. This conformation is unprecedented in the previous reports of this cation, with almost thirty different occurrences in nearly twenty crystal structures. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.
Author(s): Liddle T, Clegg W
Publication type: Article
Publication status: Published
Journal: Acta Crystallographica Section E: Structure Reports Online
Year: 2003
Volume: 59
Issue: 12
Pages: m1184-m1186
Print publication date: 01/12/2003
ISSN (print): 1600-5368
ISSN (electronic):
Publisher: Wiley-Blackwell Publishing
URL: http://dx.doi.org/10.1107/S160053680302676X
DOI: 10.1107/S160053680302676X
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