Resumo

SANTILLAN, Rosa; KARLEN, Steven D.; DANG, Hung  e  GARCIA-GARIBAY, Miguel A.. Synthesis and Characterization of Natural Abundance and Isotopically Labeled 1,4-Bis(3,3,3-triphenylpropynyl)-2,3-difluorobenzene: A Molecular Gyroscope with a Polar Rotator. J. Mex. Chem. Soc [online]. 2008, vol.52, n.2, pp.125-129. ISSN 1870-249X.

Sonogashira coupling of natural abundance and d₂-deuterated 1,4-bis(trifluoromethanesulfonate)-2,3-difluorobenzene provides access to 1,4-bis(3,3,3-triphenylpropynyl)-2,3-difluorobenzene, a structure that emulates a molecular gyroscope with a dipolar rotator. Two crystal forms of this compound are of interest for the construction of ferroelectric materials.

Palavras-chave : Molecular machines; molecular rotors; isotopic substitution; X-ray structure.