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Recent Developments of Molecular Chemistry for Sol–Gel Processes
Author(s) -
Corriu Robert J. P.,
Leclercq Dominique
Publication year - 1996
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.199614201
Subject(s) - substructure , reactivity (psychology) , covalent bond , moiety , chemistry , amorphous solid , hydrolysis , organic chemistry , sol gel , chemical engineering , inorganic chemistry , polymer chemistry , nanotechnology , materials science , medicine , alternative medicine , structural engineering , pathology , engineering
This review focuses on some aspects of the chemistry involved in the preparation of oxides by sol–gel methods. This field is opening interesting possibilities for molecular chemistry and among those presented herein are: (1) the use of precursors containing functional groups for the preparation of solids with specific chemical reactivity; (2) the non‐hydrolytic gelation (NHG) route, a new general method for the synthesis of oxides that allows the use of oxygen donors (ethers, alcohols, alkoxides) other than water; the mechanism is based on oxygen–carbon bond cleavage; (3) organic–inorganic hybrid solids containing covalent bonds for which the chemical reactivity is used to demonstrate the presence of substructure in the globally amorphous solid; the substructure greatly depends on the geometry of the organic moiety.