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Resolution and Kinetic Stability of a Chiral Supramolecular Assembly Made of Labile Components

Andreas J. Terpin

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Marco Ziegler,

Marco Ziegler

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Darren W. Johnson,

Darren W. Johnson

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Kenneth N. Raymond Prof.,

Kenneth N. Raymond Prof.

[email protected]

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Andreas J. Terpin,

Andreas J. Terpin

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Marco Ziegler,

Marco Ziegler

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Darren W. Johnson,

Darren W. Johnson

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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Kenneth N. Raymond Prof.,

Kenneth N. Raymond Prof.

[email protected]

Department of Chemistry University of California Berkeley, CA 94720-1460, USA, Fax: (+1) 510-486-5283 WWW: http://www.cchem.berkeley.edu/~knrgrp

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First published: 04 January 2001

https://doi.org/10.1002/1521-3773(20010105)40:1<157::AID-ANIE157>3.0.CO;2-4

Citations: 163

Coordination Number Incommensurate Cluster Formation, Part 18. Financial support of this work was provided by NSF CHE-9709621 and by NSF and NATO-NSF exchange grants INT-9603212 and SRG 951516, respectively. We thank the Alexander-von-Humboldt Foundation for a Fellowship to A.T., and a Humboldt Research Award for Senior U.S. Scientists to K.R., and the Miller Foundation for a fellowship to M.Z. The authors gratefully acknowledge the assistance of Dr. F. J. Hollander and Dr. D. L. Caulder in selecting and mounting a suitable single crystal, and Prof. Julie A. Leary, Dr. Ulla N. Andersen, and J. J. Miranda for measuring mass spectra. Part 17: M. Ziegler, J. J. Miranda, U. N. Andersen, D. W. Johnson, J. A. Leary, K. N. Raymond, Angew. Chem., in press.

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Abstract

Enough mechanical stiffness that the metal centers can no longer racemize is provided by the connection of four labile metal centers (Al^III, Ga^III, In^III, Fe^III) and six achiral bis-catecholate ligands in a rigid tetrahedral assembly (see picture). The resolution and unprecedented kinetic stability of such a chiral supramolecular assembly is reported here for the first time.

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