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Donor‐Acceptor Substituted Anions and Cations in the Cyclopentadienyl System
Author(s) -
Gompper Rudolf,
Gessner Thomas
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.198509821
Subject(s) - cyclopentadienyl complex , acceptor , chemistry , medicinal chemistry , organic chemistry , physics , catalysis , condensed matter physics
A cyclopentadienyl anion 1–formally aromatic–and a cyclopentadienyl cation 3–formally antiaromatic –can be generated from the donor‐acceptor substituted cyclopentadiene 2. 1 and 3 (as K ⊕ ‐ and BF 4 ⊖ ‐salt, respectively) are similarly stable and are of interest, inter alia, with regard to the synthesis of dyes and organic metals (via novel fulvenes and fulvalenes).