The Radical Cation of  N,N ′‐Tetramethylene‐ syn ‐1,6:8,13‐diimino[14]annulene. An Experimental Study of the NN Three‐Electron σ Bond | Zendy

Gerson Fabian | Zendy; Gescheidt Georg | Zendy; Buser Urs | Zendy; Vogel Emanuel | Zendy; Lex Johann | Zendy; Zehnder Margareta | Zendy; Riesen Andreas | Zendy

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The Radical Cation of N,N ′‐Tetramethylene‐ syn ‐1,6:8,13‐diimino[14]annulene. An Experimental Study of the NN Three‐Electron σ Bond

Author(s) -

Gerson Fabian,

Gescheidt Georg,

Buser Urs,

Vogel Emanuel,

Lex Johann,

Zehnder Margareta,

Riesen Andreas

Publication year - 1989

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.198909021

Subject(s) - annulene , radical ion , chemistry , bond length , electron , crystallography , medicinal chemistry , stereochemistry , ion , crystal structure , physics , organic chemistry , quantum mechanics

The direct detection of an NN three‐electron σ‐bond in the system 1 / 1 ⊕ ClO 4 ⊖was possible by X‐ray structure analysis. The NN distance of 256.0 pm in 1 is shortened to 218.9 pm in the radical cation 1 ⊕ . Hitherto, such a detection in this way was only possible in the case of the radical cations of 1,6‐diazabicyclo[4.4.4]tetradecane and N,N ″‐trimethylene‐ syn ‐1,6:8,13‐diimino[14]annulene.

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