In this chapter, we deal with the utilization of mechanochemical processes between molecular and ionic crystals to obtain new crystalline materials. Mechanochemical processes can be grossly divided into two categories depending on the bonding interactions involved: (i) breaking and forming of noncovalent bonds to yield supramolecular adducts (viz. cocrystals, salts, molecular complexes, host–guest systems, etc.)1 and (ii) breaking and forming of covalent bonds by the action of mixing reactants. These processes can take place in the course of a reaction between different molecular materials (intersolid) or within a molecular material (intrasolid). A third important class of reactions is that combining inter- and intrasolid processes that exploits supramolecular (mainly hydrogen bond driven) aggregation to link in space the reactants with the correct separation to allow subsequent covalent reaction, most often activated by UV radiation.

D. Braga, E. Dichiarante, F. Grepioni, G. I. Lampronti, L. Maini, P. P. Mazzeo, et al. (2012). Mechanical Preparation of Crystalline Materials. An Oxymoron?. CHICHESTER : John Wiley & Sons, Ltd..

Mechanical Preparation of Crystalline Materials. An Oxymoron?

BRAGA, DARIO;GREPIONI, FABRIZIA;MAINI, LUCIA;MAZZEO, PAOLO PIO;D'AGOSTINO, SIMONE
2012

Abstract

In this chapter, we deal with the utilization of mechanochemical processes between molecular and ionic crystals to obtain new crystalline materials. Mechanochemical processes can be grossly divided into two categories depending on the bonding interactions involved: (i) breaking and forming of noncovalent bonds to yield supramolecular adducts (viz. cocrystals, salts, molecular complexes, host–guest systems, etc.)1 and (ii) breaking and forming of covalent bonds by the action of mixing reactants. These processes can take place in the course of a reaction between different molecular materials (intersolid) or within a molecular material (intrasolid). A third important class of reactions is that combining inter- and intrasolid processes that exploits supramolecular (mainly hydrogen bond driven) aggregation to link in space the reactants with the correct separation to allow subsequent covalent reaction, most often activated by UV radiation.
2012
Supramolecular Chemistry: From Molecules to Nanomaterials
2993
3007
D. Braga, E. Dichiarante, F. Grepioni, G. I. Lampronti, L. Maini, P. P. Mazzeo, et al. (2012). Mechanical Preparation of Crystalline Materials. An Oxymoron?. CHICHESTER : John Wiley & Sons, Ltd..
D. Braga; E. Dichiarante; F. Grepioni; G. I. Lampronti; L. Maini; P. P. Mazzeo; S. D’Agostino
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/129348
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