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dc.contributor.author
Sigurbjörnsson, Ómar F.
dc.contributor.author
Firanescu, George
dc.contributor.author
Signorell, Ruth
dc.date.accessioned
2020-08-07T13:09:31Z
dc.date.available
2020-07-27T15:16:35Z
dc.date.available
2020-08-07T13:09:31Z
dc.date.issued
2009-01-07
dc.identifier.issn
1463-9084
dc.identifier.issn
1463-9076
dc.identifier.other
10.1039/b813756k
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/428685
dc.description.abstract
Phase transitions and shape changes of aerosol particles play a fundamental role in atmospheric as well as technical processes involving aerosols. For the example of fluoroform particles, we demonstrate how information about both processes can be extracted from time-dependent infrared spectra by comparison with vibrational exciton calculations. We find volume crystallization rate constants for fluoroform particles in the range of Jv = 108–1010 cm−3 s−1 at a temperature of T = 78 K. Furthermore, our investigation reveals that supercooled fluoroform droplets crystallize to the most stable monoclinic bulk crystal structure. Immediately after crystallization, the particles have a cube-like shape which evolves with increasing time to an elongated shape. The present results provide new data for a better understanding of the Rapid Expansion of Supercritical Solutions when fluoroform is used as a supercritical solvent under expansion conditions which lead to fluoroform aerosol formation.
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.title
Vibrational exciton coupling as a probe for phase transitions and shape changes of fluoroform aerosol particles
en_US
dc.type
Journal Article
dc.date.published
2008-11-12
ethz.journal.title
Physical Chemistry Chemical Physics
ethz.journal.volume
11
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Phys. Chem. Chem. Phys.
ethz.pages.start
187
en_US
ethz.pages.end
194
en_US
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02515 - Laboratorium für Physikalische Chemie / Laboratory of Physical Chemistry::03961 - Signorell, Ruth / Signorell, Ruth
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02515 - Laboratorium für Physikalische Chemie / Laboratory of Physical Chemistry::03961 - Signorell, Ruth / Signorell, Ruth
en_US
ethz.date.deposited
2020-07-27T15:16:47Z
ethz.source
FORM
ethz.eth
no
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-08-07T13:09:46Z
ethz.rosetta.lastUpdated
2020-08-07T13:09:46Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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