We thank Lawrence M. Henling for crystallographic assistance, David Vandervelde for help with NMR experiments, and Harry Gray, Jay Winkler and Liviu Mirica for stimulating discussions. We are grateful to Caltech and NSF GRFP (E.Y.T.) for funding. The Bruker KAPPA APEXII X-ray diffractometer was purchased through an NSF CRIF:MU award to Caltech, CHE-0639094. SQUID data were collected at the MMRC of the Beckman Institute of the California Institute of Technology.
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Communication
Trinucleating Copper: Synthesis and Magnetostructural Characterization of Complexes Supported by a Hexapyridyl 1,3,5-Triarylbenzene Ligand†
Article first published online: 11 JAN 2011
DOI: 10.1002/anie.201005232
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Tsui, E. Y., Day, M. W. and Agapie, T. (2011), Trinucleating Copper: Synthesis and Magnetostructural Characterization of Complexes Supported by a Hexapyridyl 1,3,5-Triarylbenzene Ligand. Angewandte Chemie International Edition, 50: 1668–1672. doi: 10.1002/anie.201005232
- †
Publication History
- Issue published online: 9 FEB 2011
- Article first published online: 11 JAN 2011
- Manuscript Revised: 24 OCT 2010
- Manuscript Received: 21 AUG 2010
Funded by
- Caltech
- NSF
Keywords:
- copper complexes;
- dioxygen;
- magnetic properties;
- multinucleating ligands;
- trinuclear clusters
Graphical Abstract
Copper threesome: A hexapyridyl ligand based upon a 1,3,5-triphenylbenzene framework coordinates three metal centers in a constrained environment (see picture). The tricopper(I) complex reduces dioxygen to form a tricopper(II) cluster. The capping anions affect the magnetism and EPR spectra of these species and reveal a linear dependence between the antiferromagnetic exchange parameter and the Cu-O-Cu angles.