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Ring‐Slipped (2,2′‐Bipyridine)(η 3 ‐cyclopentadienyl)(η 5 ‐cyclopentadienyl)vanadium(II) and Its Oxidation to (2,2′‐Bipyridine)bis(η 5 ‐cyclopentadienyl)vanadium(III) Tetraphenylborate
Author(s) -
Jordan Markus,
Saak Wolfgang,
Haase Detlev,
Beckhaus Rüdiger
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700904
Subject(s) - chemistry , cyclopentadienyl complex , vanadium , tetraphenylborate , cationic polymerization , 2,2' bipyridine , bipyridine , inorganic chemistry , metallocene , medicinal chemistry , crystallography , polymer chemistry , crystal structure , catalysis , organic chemistry , ion , polymerization , polymer
Reaction of vanadocene(II) ( 4 ) with 2,2′‐bipyridine ( 5 ) leads to (2,2′‐bipyridine)vanadocene(II) ( 6 ), exhibiting a η 3 ,η 5 ‐metallocene unit, proved by X‐ray diffraction. By selective one‐electron oxidation employing [Cp 2 Fe]BPh 4 salts, the cationic (2,2′‐bipyridine)vanadocene(III) derivative 7 is formed. It is characterized by a classical bent bis(η 5 ‐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)