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Heptasila[7]paracyclophane
Author(s) -
Ando Wataru,
Tsumuraya Takeshi,
Kabe Yoshio
Publication year - 1990
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.199007781
Subject(s) - benzene , ring (chemistry) , polysilane , flexibility (engineering) , crystallography , chemistry , materials science , organic chemistry , mathematics , statistics , polymer
The deformation of the heptasilanediyl‐bridged benzene ring in 1 is less than that of the analogous heptamethylene‐bridged benzene ring (deviation of the benzene C atoms from the plane, 6.6 and 4.5° versus 17°). This finding is ascribed to the high flexibility of the polysilane chain. Paracyclophane 1 is obtained by reductive coupling of 2 with sodium in the presence of 18‐crown‐6.
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