The creation of modulated monoclinic aperiodic composites in n-alkane/urea compounds

dc.citationMariette, C., Guerin, L., Rabiller, P., Chen, Y. S., Bosak, A., Popov, A., . . . Toudic, B. (2015). The creation of modulated monoclinic aperiodic composites in n-alkane/urea compounds. Zeitschrift Fur Kristallographie, 230(1), 5-11. doi:10.1515/zkri-2014-1773
dc.citation.doi10.1515/zkri-2014-1773
dc.citation.epage11
dc.citation.issn0044-2968
dc.citation.issue1
dc.citation.jtitleZeitschrift Fur Kristallographie
dc.citation.spage5
dc.citation.volume230
dc.contributor.authorMariette, C.
dc.contributor.authorGuerin, L.
dc.contributor.authorRabiller, P.
dc.contributor.authorChen, Y. S.
dc.contributor.authorBosak, A.
dc.contributor.authorPopov, A.
dc.contributor.authorHollingsworth, Mark D.
dc.contributor.authorToudic, B.
dc.contributor.authoreidmdholl
dc.date.accessioned2016-04-04T22:23:55Z
dc.date.available2016-04-04T22:23:55Z
dc.date.issued2014-09-12
dc.date.published2015
dc.descriptionCitation: Mariette, C., Guerin, L., Rabiller, P., Chen, Y. S., Bosak, A., Popov, A., . . . Toudic, B. (2015). The creation of modulated monoclinic aperiodic composites in n-alkane/urea compounds. Zeitschrift Fur Kristallographie, 230(1), 5-11. doi:10.1515/zkri-2014-1773
dc.descriptionn-Dodecane/urea is a member of the prototype series of n-alkane/urea inclusion compounds. At room temperature, it presents a quasi-one dimensional liquid-like state for the confined guest molecules within the rigid, hexagonal framework of the urea host. At lower temperatures, we report the existence of two other phases. Below T-c=248 K there appears a phase with rank four superspace group P6(1)22(00 gamma), the one typically observed at room temperature in n-alkane/urea compounds with longer guest molecules. A misfit parameter, defined by the ratio gamma=C-h/C-g (C-host/C-guest), is found to be 0.632 +/- 0.005. Below T-c1=123 K, a monoclinic modulated phase is created with a constant shift along c of the guest molecules in adjacent channels. The maximal monoclinic space group for this structure is P12(1)1(alpha 0 gamma). Analogies and differences with n-heptane/urea, which also presents a monoclinic, modulated low-temperature phase, are discussed.
dc.description.embargoEmbargo 1/1/2016
dc.identifier.urihttp://hdl.handle.net/2097/32259
dc.relation.urihttps://doi.org/10.1515/zkri-2014-1773
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/?language=en
dc.subjectAlkane/Urea Crystals
dc.subjectAperiodic Crystals
dc.subjectCrystallographic Superspace
dc.subjectDiffraction
dc.subjectPhase Transitions
dc.subjectUrea Inclusion-Compounds
dc.titleThe creation of modulated monoclinic aperiodic composites in n-alkane/urea compounds
dc.typeArticle

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