Host–Guest Interactions: Design Strategy and Structure of an Unusual Cobalt Cage That Encapsulates a Tetrafluoroborate Anion

Authors

  • Hani Amouri Dr.,

    1. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR CNRS 7071, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France, Fax: (+33) 1-4427-3841
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  • Lamia Mimassi,

    1. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR CNRS 7071, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France, Fax: (+33) 1-4427-3841
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  • Marie Noelle Rager Dr.,

    1. NMR Services of Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
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  • Brian E. Mann Prof. Dr.,

    1. Department of Chemistry, The University of Sheffield, Sheffield, S3 7HF, UK
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  • Carine Guyard-Duhayon Dr.,

    1. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR CNRS 7071, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France, Fax: (+33) 1-4427-3841
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  • Laurence Raehm Dr.

    1. Laboratoire de Chimie Inorganique et Matériaux Moléculaires, UMR CNRS 7071, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France, Fax: (+33) 1-4427-3841
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  • We gratefully acknowledge the CNRS and the Université Pierre et Marie Curie for support of this work.

Abstract

original image

Stuck in the middle: Supramolecular host–guest cages of general formula [BF4⊂(RCN)2Co2L4](BF4)3 with L being a di(benzimidazole)-1,4-phenylene derivative (R=Me, Et, Ph) have been prepared. An encapsulated BF4 anion (B yellow, F pale green; see structure) is locked firmly inside the cage and plays a pivotal role as a template around which the CoII ions (gray) and L ligands (ball-and-stick representation) self-assemble.

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