Silica-based organic–inorganic hybrid materials prepared from chiral precursors

Valorization of by-products of the sugar industry: New nanostructured hybrid materials containing sugar derived structures

“…The reason for this growing interest in chiral sol-gel materials mainly results from the various potential applications of these materials such as selective adsorption, catalysis, separation and sensors. The methods for inducing chirality in silicas and sol-gel materials can be divided into four approaches [8]: the silylation of silica surfaces by silanes bearing a chiral group [9,10] the use of chiral silanes as precursors in sol-gel polycondensation [11][12][13][14][15][16][17][18], the physical entrapment of chiral molecules and biomolecules during sol-gel polycondensation reaction [19,20] and the imprinting with chiral templates [21][22][23]. The design and synthesis of chiral hybrid materials with optical activity and enantioselectivity remains a challenge.…”

Bis-silylated terephthalate as a building block precursor for highly fluorescent organic–inorganic hybrid materials

“…17 A wide variety of organic functionalities can be incorporated into the silica network, 18 including alkyl, aromatic, heterocyclic groups, chelating systems (cyclames, crown ethers, porphyrins, etc. ), chiral molecules, 19,20 as well as polymers. 2,9,21 The most common self-organization of organic units can be obtained by van der Waals interactions, for example p-p interaction between the aromatic rings and/or by intermolecular H-bonding, such as ureido groups between organic groups.…”