Torsional Isomerism in Metallocenes: Hindered Cp‐Rotation in ( s‐cis ‐η‐Butadiene)‐bis(η‐ tert ‐butylcyclopentadienyl)zirconium | Zendy

Erker Gerhard | Zendy; Mühlenbernd Thomas | Zendy; Benn Reinhard | Zendy; Rufińska Anna | Zendy; Tsay YiHung | Zendy; Krüger Carl | Zendy

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Torsional Isomerism in Metallocenes: Hindered Cp‐Rotation in ( s‐cis ‐η‐Butadiene)‐bis(η‐ tert ‐butylcyclopentadienyl)zirconium

Author(s) -

Erker Gerhard,

Mühlenbernd Thomas,

Benn Reinhard,

Rufińska Anna,

Tsay YiHung,

Krüger Carl

Publication year - 1985

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.198503211

Subject(s) - cyclopentadienyl complex , zirconium , 1,3 butadiene , chemistry , rotation (mathematics) , metallocene , crystallography , medicinal chemistry , nuclear magnetic resonance spectroscopy , stereochemistry , organic chemistry , geometry , catalysis , polymer , mathematics , polymerization

Three isomers of the title compound, a butadiene‐zirconocene with tert ‐butyl substituents, could be identified at 310 K by NMR spectroscopy. In contrast to metallocenes with unsubstituted cyclopentadienyl groups, the rotation of the t BuC 5 H 4 groups is a high‐energy process.

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