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1‐Alkyl‐2,3,5,6,7,8‐hexasilabicyclo[2.2.2]octanes: Unconventional Class of Mesomorphic Columnar Compounds
Author(s) -
Shimizu Masaki,
Nata Masanori,
Mochida Kenji,
Hiyama Tamejiro,
Ujiie Seiji,
Yoshio Masafumi,
Kato Takashi
Publication year - 2007
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/anie.200604170
Subject(s) - alkyl , differential scanning calorimetry , hexagonal crystal system , crystallography , diffraction , chemistry , class (philosophy) , materials science , organic chemistry , physics , computer science , optics , thermodynamics , artificial intelligence
Phasing up to matters : Hexagonal columnar mesophases have been formed by polysilacage compounds based on 1‐alkyl‐2,3,5,6,7,8‐hexasilabicyclo[2.2.2]octanes that contain neither aromatic rings nor long alkyl chains. These mesophases have been characterized by polarizing optical photomicroscopy (see picture), differential scanning calorimetry, and diffraction studies.