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Structure of the Lowest Temperature Phase of the Solid Benzene–Hexafluorobenzene Adduct
Author(s) -
Williams Jeffrey Huw,
Cockcroft Jeremy Karl,
Fitch Andrew Nicholas
Publication year - 1992
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.199216551
Subject(s) - hexafluorobenzene , adduct , benzene , molecule , chemistry , synchrotron radiation , phase (matter) , crystallography , crystal structure , photochemistry , organic chemistry , optics , physics
Similarities with a number of liquid‐crystal systems are revealed by the structural characterization of the low‐temperature phases II—IV of the solid adduct from benzene and hexafluorobenzene (right). As the temperature is raised, increased rotation leads to a reduction in the interactions between neighboring columns of alternating C 6 H 6 and C 6 F 6 molecules. These results could only be obtained by using a combination of powder diffraction techniques with neutrons and synchrotron radiation.