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The First Distibabutadiene: Synthesis and Structure of trans ‐1,4‐Bis(trimethylsiloxy)‐1,4‐bis(2,4,6‐tri‐ tert ‐butylphenyl)‐2,3‐distibabutadiene
Author(s) -
Hitchcock Peter B.,
Jones Cameron,
Nixon John F.
Publication year - 1995
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.199504921
Subject(s) - electron delocalization , steric effects , double bond , chemistry , molecule , crystal structure , delocalized electron , crystallography , stereochemistry , crystal (programming language) , polymer chemistry , organic chemistry , computer science , programming language
A λ 3 ,σ 2 SbC double bond that is not part of a cyclic electron system is present in the distibabutadiene 1 , which is formed in the reaction of (2,4,6‐C 6 H 2 t Bu 3 )COCl with Li[Sb(SiMe 3 ) 2 (dme)]. The X‐ray crystal structure analysis of 1 indicates a degree of double‐bond delocalization that, in addition to steric bulk, stabilizes this unusual molecule.