The Crystal and Mesophase Structure of Hexakis(alkylsulfono)- benzene Homologues by X-Ray Diffractometry

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dc.contributor.authorSpielberg, N.
dc.contributor.authorLuz, Z.
dc.contributor.authorPoupko, R.
dc.contributor.authorPraefcke, K.
dc.contributor.authorKohne, B.
dc.contributor.authorPickardt, Joachim
dc.contributor.authorHorn, K.
dc.date.accessioned2019-01-02T09:34:52Z
dc.date.available2019-01-02T09:34:52Z
dc.date.issued1986
dc.description.abstractA powder X-ray diffractometer study of hexakis(tridecylsulfono)benzene (HASB13) has been carried out over the temperature range 20 to above 80 °C. In this range three phase transitions are observed by sharp discontinuities in the diffraction pattern indicating a solid-solid, solidmesophase, and mesophase-liquid transition. The mesomorphic phase is identified as a hexagonal columnar discotic mesophase, Dhd, with intercolumnar spacing of 25.7 Å and average stacking distance of 4.9 Å. Both distances are independent of temperature but there appears to be a gradual increase in the stacking disorder as the temperature is increased. The magnitude of the intercolumnar distance suggests a considerable degree of side chain disorder. A detailed X-ray diffraction study was also performed at room temperature on a single crystal of hexakis(propylsulfono) benzene (HASB3), which is not mesogenic. The results provide detailed information on the structure of HASB 3 which is used in the interpretation of HASB 13 results.en
dc.identifier.eissn1865-7109
dc.identifier.issn0932-0784
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/8766
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-7895
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subject.ddc500 Naturwissenschaften und Mathematikde
dc.subject.otherX-ray diffractometeren
dc.subject.otherhexakis(tridecylsulfono)benzene (HASB13)en
dc.subject.othermesophaseen
dc.titleThe Crystal and Mesophase Structure of Hexakis(alkylsulfono)- benzene Homologues by X-Ray Diffractometryen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1515/zna-1986-0612
dcterms.bibliographicCitation.issue6
dcterms.bibliographicCitation.journaltitleZeitschrift für Naturforschung Ade
dcterms.bibliographicCitation.originalpublishernameDe Gruyteren
dcterms.bibliographicCitation.originalpublisherplaceBerlin
dcterms.bibliographicCitation.pageend860
dcterms.bibliographicCitation.pagestart855
dcterms.bibliographicCitation.volume41
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Organische Chemie / Synthese und Katalysede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Organische Chemie / Synthese und Katalysede
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlinde

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