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Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Dr Stephen Liddle


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The title complex, [Rb(C11H9N2)(C 20H24O6)], has potassium in an irregular eightfold coordination, with a hexadentate crown ether ligand and a chelating bidentate amidopyridine ligand, each occupying one hemisphere of the coordination. The chelate KNCN ring is slightly folded, and the two rings of the amidopyridine ligand are not coplanar, because of steric interaction of H atoms on the rings. The K - N(amido) bond is shorter than the K - N(pyridine) bond. The coordination of the crown ether to potassium is less symmetrical than that for the analogous rubidium complex, reflecting a poorer size match for K + in this coordination site. © 2004 International Union of Crystallography Printed in Great Britain - all rights reserved.

Publication metadata

Author(s): Clegg W, Liddle ST

Publication type: Article

Publication status: Published

Journal: Acta Crystallographica Section E: Structure Reports Online

Year: 2004

Volume: 60

Issue: 10

Pages: m1495-m1497

Print publication date: 01/10/2004

ISSN (print): 1600-5368

ISSN (electronic):

Publisher: Wiley-Blackwell


DOI: 10.1107/S1600536804023360


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