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Cyclooctatetraenylene Vinylenes
Author(s) -
AuchterKrummel Petra,
Müllen Klaus
Publication year - 1991
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.199110031
Subject(s) - intramolecular force , alkali metal , realization (probability) , charge (physics) , phenylene , raising (metalworking) , chemistry , materials science , combinatorial chemistry , stereochemistry , organic chemistry , physics , polymer , metallurgy , mathematics , statistics , quantum mechanics
The replacement of phenylene units by cyclooctatetraenylene units in poly(phenylenevinylene) leads to compounds such as 1 and 2 . The realization of this plan requires the synthesis of suitable cyclooctatetraenes as well as separation of the E / Z isomers of the products. The “oligo‐COT” compounds may be reduced electrochemically and by alkali metals to polyanions such as 1 8⊖ . The charge density in the COT units thereby increases unsymmetrically. Raising the temperature results, in some cases, in an intramolecular charge shift.