Volume 31, Issue 11 pp. 1515-1518
Communication
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Mono- and Binuclear Molybdenum Complexes Incorporating 4-(4-Hydroxyphenyl)pyridine: Metal–Metal Interactions Across an Asymmetric Bridging Ligand

Dr. Amitava Das

Dr. Amitava Das

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

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Dr. John C. Jeffery

Dr. John C. Jeffery

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

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Dr. John P. Maher

Dr. John P. Maher

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

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Prof. Jon A. McCleverty

Corresponding Author

Prof. Jon A. McCleverty

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)Search for more papers by this author
Erik Schatz

Erik Schatz

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

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Dr. Michael D. Ward

Corresponding Author

Dr. Michael D. Ward

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)Search for more papers by this author
Gerd Wollermann

Gerd Wollermann

School of Chemistry, Cantock's Close, GB-Bristol BS8 1TS (United Kingdom)

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First published: November 1992
Citations: 13

We thank the Science and Engineering Research Council (SERC) for a postdoctoral fellowship (A.D.) and for a grant for the purchase of an EPR spectrometer.

Graphical Abstract

Localization versus delocalization: in the binuclear asymmetric Mo complex 1, a facile one-electron reduction with cobaltocene is sufficient to convert a system with localized electrons to one with delocalized electrons. Whereas according to the EPR spectrum the unpaired electron in the 17e–16e complex 1 is localized at the Mo center coordinated to N, in the 17e–17e diradical 1 a rapid site exchange of the two unpaired electrons occurs for which a rate of 4 × 107 Hz was determined. L* = hydro-tris(3,5-dimethylpyrazolyl)borate.

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