Ring-Slipped (2,2′-Bipyridine)(η3-cyclopentadienyl)(η5-cyclopentadienyl)vanadium(II) and Its Oxidation to (2,2′-Bipyridine)bis(η5-cyclopentadienyl)vanadium(III) Tetraphenylborate

Reaction of vanadocene(II) (4) with 2,2′‐bipyridine (5) leads to (2,2′‐bipyridine)vanadocene(II) (6), exhibiting a η3,η5‐metallocene unit, proved by X‐ray diffraction. By selective one‐electron oxidation employing [Cp2Fe]BPh4 salts, the cationic (2,2′‐bipyridine)vanadocene(III) derivative 7 is forme...

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Bibliographic Details
Published in:European Journal of Inorganic Chemistry 2007, Vol.2007 (33), p.5168-5172
Main Authors: Jordan, Markus, Saak, Wolfgang, Haase, Detlev, Beckhaus, Rüdiger
Format: Review
Language:English
Subjects:
2,2′‐Bipyridine
2′-Bipyridine
Coordination modes
Haptotropic rearrangement
Metallocenes
Oxidation
Vanadium
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Summary:Reaction of vanadocene(II) (4) with 2,2′‐bipyridine (5) leads to (2,2′‐bipyridine)vanadocene(II) (6), exhibiting a η3,η5‐metallocene unit, proved by X‐ray diffraction. By selective one‐electron oxidation employing [Cp2Fe]BPh4 salts, the cationic (2,2′‐bipyridine)vanadocene(III) derivative 7 is formed. It is characterized by a classical bent bis(η5‐cyclopentadienyl)vanadium(III) structure. Characteristic structural details comparing changes in the oxidation states are discussed. The ring‐slip parameters are compared to those of tungsten and other vanadium complexes. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.200700904