KOPS - Das Institutionelle Repositorium der Universität Konstanz

Crystallization caught in the act with terahertz spectroscopy : non-classical pathway for L-(+)-tartaric acid

Crystallization caught in the act with terahertz spectroscopy : non-classical pathway for L-(+)-tartaric acid

Zitieren

Dateien zu dieser Ressource

Dateien Größe Format Anzeige

Zu diesem Dokument gibt es keine Dateien.

SOLTANI, Amin, Denis GEBAUER, Lennart DUSCHEK, Bernd FISCHER, Helmut CÖLFEN, Martin KOCH, 2017. Crystallization caught in the act with terahertz spectroscopy : non-classical pathway for L-(+)-tartaric acid. In: Chemistry - A European Journal. 23(57), pp. 14128-14132-14132. ISSN 0947-6539. eISSN 1521-3765. Available under: doi: 10.1002/chem.201702218

@article{Soltani2017-10-12Cryst-39743, title={Crystallization caught in the act with terahertz spectroscopy : non-classical pathway for L-(+)-tartaric acid}, year={2017}, doi={10.1002/chem.201702218}, number={57}, volume={23}, issn={0947-6539}, journal={Chemistry - A European Journal}, pages={14128-14132--14132}, author={Soltani, Amin and Gebauer, Denis and Duschek, Lennart and Fischer, Bernd and Cölfen, Helmut and Koch, Martin} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/39743"> <dc:language>eng</dc:language> <dc:creator>Gebauer, Denis</dc:creator> <dc:contributor>Fischer, Bernd</dc:contributor> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <dc:contributor>Soltani, Amin</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Fischer, Bernd</dc:creator> <dcterms:title>Crystallization caught in the act with terahertz spectroscopy : non-classical pathway for L-(+)-tartaric acid</dcterms:title> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Soltani, Amin</dc:creator> <dcterms:issued>2017-10-12</dcterms:issued> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39743"/> <dc:contributor>Cölfen, Helmut</dc:contributor> <dc:creator>Duschek, Lennart</dc:creator> <dcterms:abstract xml:lang="eng">Crystal formation is a highly debated problem. We show that the crystallization of L-(+)-tartaric acid from water follows a non-classical path involving intermediate hydrated states. Analytical ultracentrifugation indicates solution clusters of the initial stages aggregate to form an early intermediate. Terahertz spectroscopy performed during water evaporation highlights a transient increase in the absorption during nucleation. This indicates the recurrence of water molecules which are expelled from the intermediate phase. Besides, a transient resonance at 750 GHz that can be assigned to a natural vibration of large hydrated aggregates vanishes after the final crystal has formed. Furthermore, THz data reveal the vibration of nanosized clusters in the dilute solution indicated by analytical ultracentrifugation. Infrared spectroscopy and wide-angle X-ray scattering highlight that the intermediate is not a crystalline hydrate. Our results demonstrate that nanoscopic intermediate units assemble to form the first solvent-free crystalline nuclei upon dehydration.</dcterms:abstract> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-02T15:14:14Z</dc:date> <dc:creator>Koch, Martin</dc:creator> <dc:creator>Cölfen, Helmut</dc:creator> <dc:contributor>Duschek, Lennart</dc:contributor> <dc:contributor>Gebauer, Denis</dc:contributor> <dc:contributor>Koch, Martin</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-08-02T15:14:14Z</dcterms:available> </rdf:Description> </rdf:RDF>

Das Dokument erscheint in:

KOPS Suche


Stöbern

Mein Benutzerkonto