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Sol–Gel Polycondensation of Tetraethoxysilane in a Cholesterol‐Based Organogel System Results in Chiral Spiral Silica
Author(s) -
Jung Jong Hwa,
Ono Yoshiyuki,
Shinkai Seiji
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/(sici)1521-3773(20000515)39:10<1862::aid-anie1862>3.0.co;2-3
Subject(s) - condensation polymer , spiral (railway) , materials science , silica gel , sol gel , polymer chemistry , chemical engineering , composite material , nanotechnology , polymer , engineering , mechanical engineering
A right‐handed helical motif is shown by the spiral silica shown in the picture. It is formed by sol–gel polycondensation of tetraethoxysilane in the gel phase supported by an azacrown‐appended cholesterol gelator. This is rare example of “chirality” being created in the inorganic material by the template method.