About: Viedma ripening

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Viedma ripening or attrition-enhanced deracemization is a chiral symmetry breaking phenomenon observed in solid/liquid mixtures of enantiomorphous (racemic conglomerate) crystals that are subjected to comminution. It can be classified in the wider area of spontaneous symmetry breaking phenomena observed in chemistry and physics.

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rdfs:label	Viedma ripening (en)
rdfs:comment	Viedma ripening or attrition-enhanced deracemization is a chiral symmetry breaking phenomenon observed in solid/liquid mixtures of enantiomorphous (racemic conglomerate) crystals that are subjected to comminution. It can be classified in the wider area of spontaneous symmetry breaking phenomena observed in chemistry and physics. (en)
dcterms:subject	Amino acids Racemic mixtures Stereochemistry Chirality
Wikipage page ID	64645289 (xsd:integer)
Wikipage revision ID	1087298323 (xsd:integer)
Link from a Wikipage to another Wikipage	Proteins Enantiomer Enantioselective synthesis Homochirality DNA Particle aggregation Nucleation Racemic mixture Amino acids Organic compound Ostwald ripening Racemization Enantiomeric excess Molecules Critical radius Crystal growth Crystallization Chiral resolution Chirality Sugars Comminution Racemic mixtures Spontaneous absolute asymmetric synthesis Amino acids Stereochemistry Chiral symmetry breaking Chirality Autocatalysis Sodium chlorate Solubility equilibrium Spontaneous symmetry breaking Sigmoid function Stereoselectivity Dissolution (chemistry) Solubility Saturated solution Origin of life
sameAs	Viedma ripening Viedma ripening
dbp:wikiPageUsesTemplate	dbt:Reflist
has abstract	Viedma ripening or attrition-enhanced deracemization is a chiral symmetry breaking phenomenon observed in solid/liquid mixtures of enantiomorphous (racemic conglomerate) crystals that are subjected to comminution. It can be classified in the wider area of spontaneous symmetry breaking phenomena observed in chemistry and physics. It was discovered in 2005 by geologist Cristobal Viedma, who used glass beads and a magnetic stirrer to enable particle breakage of a racemic mixture of enantiomorphous sodium chlorate crystals in contact with their saturated solution in water. A sigmoidal (autocatalytic) increase in the solid-phase enantiomeric excess of the mixture was obtained, eventually leading to homochirality, i.e. the complete disappearance of one of the chiral species. Since the original discovery, Viedma ripening has been observed in a variety of intrinsically chiral organic compounds that exhibit conglomerate crystallization and are able to inter-convert in the liquid via racemization reactions. It is also regarded as a potential new technique to separate enantiomers of chiral molecules in the pharmaceutical and fine chemical industries (chiral resolution). (en)
prov:wasDerivedFrom	wikipedia-en:Viedma_ripening?oldid=1087298323&ns=0
page length (characters) of wiki page	8188 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Viedma_ripening
is Link from a Wikipage to another Wikipage of	Ostwald ripening
is foaf:primaryTopic of	wikipedia-en:Viedma_ripening

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