We thank Lawrence M. Henling for assistance with collection of crystallographic data. We are grateful to NSF GRFP (S.L.), Caltech, SURF office (N.C.L.), and bp for funding. The Bruker KAPPA APEXII X-ray diffractometer was purchased through an NSF CRIF:MU Award to Caltech (CHE-0639094). The 400 MHz NMR spectrometer was purchased through an NIH award, RR027690.
Communication
Reversible Halide-Modulated Nickel–Nickel Bond Cleavage: Metal–Metal Bonds as Design Elements for Molecular Devices†
Article first published online: 27 JUN 2011
DOI: 10.1002/anie.201102797
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Chao, S. T., Lara, N. C., Lin, S., Day, M. W. and Agapie, T. (2011), Reversible Halide-Modulated Nickel–Nickel Bond Cleavage: Metal–Metal Bonds as Design Elements for Molecular Devices. Angewandte Chemie International Edition, 50: 7529–7532. doi: 10.1002/anie.201102797
- †
Publication History
- Issue published online: 5 AUG 2011
- Article first published online: 27 JUN 2011
- Manuscript Received: 22 APR 2011
Funded by
- NSF
- Caltech
- SURF office
- bp
- NIH. Grant Number: RR027690
Keywords:
- chlorine;
- nickel;
- metal–arene interactions;
- metal–metal bonds;
- P ligands
Graphical Abstract

The dinickel chloride affair: In dinuclear nickel(I) complexes supported by a tris(phosphinoaryl)benzene and stabilized by metal–arene interactions, chloride addition causes reversible Ni
Ni bond cleavage that induces 180° rotation around an aryl–aryl bond (see scheme). A dinickel–chloride moiety was found to rotate around the bridging arene by a mechanism involving breaking and forming Ni
P bonds.

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