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(18-Crown-6)-bis(tetrahydrofuran)potassium iodide

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

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.


Publication metadata

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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