Tetrathienylethylenes, a New Class of Electron Donors—Dications Twisted by 90° Stabilized by Formation of Polymethine Units | Zendy

Suzuki Takanori | Zendy; Shiohara Hiroaki | Zendy; Monobe Masayuki | Zendy; Sakimura Tomoo | Zendy; Tanaka Shoji | Zendy; Yamashita Yoshiro | Zendy; Miyashi Tsutomu | Zendy

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Tetrathienylethylenes, a New Class of Electron Donors—Dications Twisted by 90° Stabilized by Formation of Polymethine Units

Author(s) -

Suzuki Takanori,

Shiohara Hiroaki,

Monobe Masayuki,

Sakimura Tomoo,

Tanaka Shoji,

Yamashita Yoshiro,

Miyashi Tsutomu

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.199204551

Subject(s) - dication , chemistry , delocalized electron , electrochemistry , photochemistry , decomposition , electron , ion , crystallography , organic chemistry , electrode , physics , quantum mechanics

With a 90° twist between the two halves, dication 1 2+ is the first ethylene dication with the maximum distortion possible. The stabilization of the positive charge is achieved in the separate halves of the dication by delocalization over polymethine units. 1 2+ , whose ClO 4 −salt melts at about 170°C with decomposition, is obtained from the electrochemical oxidation of 1 . The structure of neutral 1 differs substantially from that of its dication.

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