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Structural Characterization of a Cyclohexameric meta ‐Phenyleneethynylene Made by Alkyne Metathesis with In Situ Catalysts
Author(s) -
Ge PingHua,
Fu Wei,
Herrmann Wolfgang A.,
Herdtweck Eberhardt,
Campana Charles,
Adams Richard D.,
Bunz Uwe H. F.
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20001016)39:20<3607::aid-anie3607>3.0.co;2-s
Subject(s) - alkyne , metathesis , in situ , catalysis , chemistry , characterization (materials science) , salt metathesis reaction , crystal structure , ring (chemistry) , polymer chemistry , stereochemistry , materials science , crystallography , organic chemistry , nanotechnology , polymerization , polymer
New hexameric cyclophenyleneethynylenes (CPEs, 1 ) were synthesized by alkyne metathesis of meta‐ dipropynylated benzenes. Treatment of one of these CPE derivatives (R 1 = tert ‐butyl, hexyl, dodecyl; R 2 =H, methyl) with [Os 3 (CO) 10 (MeCN) 2 ] led to a decacarbonyltriosmium–CPE complex in which the planarity of the ring was significantly disrupted, as evidenced by the results of the single‐crystal X‐ray diffraction analysis.