meta ‐Phenylene Units as Conjugation Barriers in Phenylenevinylene Chains | Zendy

Gregorius Heike | Zendy; Baumgarten Martin | Zendy; Renter Ronald | Zendy; Müllen Klaus | Zendy; Tyutyulkov Nikolai | Zendy

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meta ‐Phenylene Units as Conjugation Barriers in Phenylenevinylene Chains

Author(s) -

Gregorius Heike,

Baumgarten Martin,

Renter Ronald,

Müllen Klaus,

Tyutyulkov Nikolai

Publication year - 1992

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.199216531

Subject(s) - phenylene , ionic bonding , photochemistry , redox , ion , chemistry , polymer chemistry , materials science , polymer , inorganic chemistry , organic chemistry

Independent of the chain length are the optical and redox chemical properties of the oligomers 1 , because the formally continuous π conjugation in them is interrupted by the meta ‐phenylene units. This is valid for neutral as well as for ionic systems. The charge localization on a stilbene unit causes extremely long wavelength “intervalence” bands in the UV/VIS spectra of the radical ions of these compounds.

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