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Through‐Bond Interaction between Two Mutually Perpendicular π Systems—A New Possibility of Conjugation
Author(s) -
Bischof Peter,
Gleiter Rolf,
Haider Rudolf
Publication year - 1977
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.197701102
Subject(s) - ring (chemistry) , perpendicular , center (category theory) , atomic orbital , physics , chemistry , crystallography , mathematics , quantum mechanics , geometry , electron , organic chemistry
The interaction between orthogonal π systems becomes considerably stronger if the spiro center joining them (1a) is replaced by a four‐membered ring (1b). The Walsh orbitals of the four‐membered ring act as a “relay”.