Show simple item record

dc.contributor.authorRiley, A. E.en
dc.contributor.authorMitchell, G. W.en
dc.contributor.authorKoutentis, Panayiotis Andreasen
dc.contributor.authorBendikov, M.en
dc.contributor.authorKaszynki, P.en
dc.contributor.authorWudl, F.en
dc.contributor.authorTolbert, S. H.en
dc.creatorRiley, A. E.en
dc.creatorMitchell, G. W.en
dc.creatorKoutentis, Panayiotis Andreasen
dc.creatorBendikov, M.en
dc.creatorKaszynki, P.en
dc.creatorWudl, F.en
dc.creatorTolbert, S. H.en
dc.date.accessioned2019-11-21T06:22:38Z
dc.date.available2019-11-21T06:22:38Z
dc.date.issued2003
dc.identifier.issn1616-301X
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/56088
dc.description.abstractA 5,7-dioctadecylquinoxalinophenazine zwitterion 1 has been investigated to determine its thermal phase behavior. A combination of differential scanning calorimetry (DSC), variable temperature low- and high-angle X-ray diffraction (XRD), and deuterium solid-state NMR spectroscopy were used to characterize the different phases of the tetraazapentacene 1. This molecule is found to exist in a variety of crystalline solid phases between room temperature and 167 °C. with different room-temperature phases resulting from crystallization from solution compared with cooling from the melt. Interestingly, the molecule exhibits liquid-crystalline behavior at high temperatures, between 167 °C and 186 °C, above which it becomes an isotropic fluid. The presence of liquid-crystalline behavior in a zwitterionic system opens up the potential for the use of these or related molecules in optoelectronic switching.en
dc.sourceAdvanced Functional Materialsen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0041307101&doi=10.1002%2fadfm.200304223&partnerID=40&md5=989452c06d57e5854fc7f0411ab51ac1
dc.subjectSwitchingen
dc.subjectNuclear magnetic resonance spectroscopyen
dc.subjectCrystallizationen
dc.subjectX ray diffractionen
dc.subjectPhase compositionen
dc.subjectDifferential scanning calorimetryen
dc.subjectLiquid crystalsen
dc.subjectHigh temperature effectsen
dc.subjectOptoelectronic devicesen
dc.subjectOlefinsen
dc.subjectPhase behavioren
dc.titleLiquid-crystalline phase behavior in a zwitterionic tetraazapentaceneen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1002/adfm.200304223
dc.description.volume13
dc.description.issue7
dc.description.startingpage531
dc.description.endingpage540
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :25</p>en
dc.source.abbreviationAdv.Funct.Mater.en
dc.contributor.orcidKoutentis, Panayiotis Andreas [0000-0002-4652-7567]
dc.gnosis.orcid0000-0002-4652-7567


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record