000476504 001__ 476504
000476504 005__ 20250729163432.0
000476504 0247_ $$2doi$$a10.1039/C8CP06481D
000476504 0247_ $$2ISSN$$a1463-9076
000476504 0247_ $$2ISSN$$a1463-9084
000476504 0247_ $$2datacite_doi$$a10.3204/PUBDB-2022-01762
000476504 0247_ $$2pmid$$a30519690
000476504 0247_ $$2WOS$$aWOS:000454836700007
000476504 0247_ $$2openalex$$aopenalex:W2902388086
000476504 037__ $$aPUBDB-2022-01762
000476504 082__ $$a540
000476504 1001_ $$0P:(DE-HGF)0$$aVollhardt, D.$$b0$$eCorresponding author
000476504 245__ $$aSpecial features of monolayer characteristics of $N$-alkanoyl substituted threonine amphiphiles
000476504 260__ $$aCambridge$$bRSC Publ.$$c2019
000476504 3367_ $$2DRIVER$$aarticle
000476504 3367_ $$2DataCite$$aOutput Types/Journal article
000476504 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1649335550_26254
000476504 3367_ $$2BibTeX$$aARTICLE
000476504 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000476504 3367_ $$00$$2EndNote$$aJournal Article
000476504 520__ $$aThe monolayers of N-alkanoyl substituted threonine amphiphiles, similar to those of other N-alkanoyl-substituted amino acid amphiphiles, point to substantial differences in the main characteristics compared to usual amphiphilic monolayers. π–A measurements of the enantiomeric and racemic forms of N-alkanoyl-substituted threonine monolayers with C16 and C18 chain lengths reveal that, independent of the alkyl chain length, all compression curves are located above the corresponding decompression curves. A theoretical model developed for the kinetics of two-dimensional condensation of Langmuir monolayers can describe this behavior concluding the attachment of monomers to large aggregates. The linear fit of the entropy changes versus temperature (ΔS = f(T)) at the LE/LC phase transition and extrapolation to zero ΔS specifies the critical temperature T$_c$, above which the monolayer cannot be compressed into the condensed state. The relatively small ΔT$_c$ difference between the enantiomeric and the racemic forms is consistent with the increased strength of van der Waals interactions between the longer alkyl chains reducing the influence of chirality on the thermodynamic parameters. The BAM experiments reveal clearly the absence of inner anisotropy as a specific feature of the domain topology of N-palmitoyl-threonine monolayers. Furthermore, the growth kinetics of the racemic N-palmitoyl-DL-threonine domains reveals a transition from homochiral discrimination and chiral separation within the domain to a state with heterochiral preference. GIXD studies show that at all pressures the enantiomers exhibit three Bragg peaks indicating an oblique lattice structure, whereas the racemates show only two Bragg peaks indicating a NNN tilted orthorhombic structure. Characteristic for the structure of all condensed monolayer phases is the large tilt angle of ∼49°, nearly independent of the lateral pressure. The transition from the oblique lattice structures, as detected for enantiomeric monolayers, to orthorhombic structures of racemic monolayers is clear evidence that the dominant heterochiral interaction in the racemic mixtures leads to the formation of a compound with congruent transition pressure having with ∼20.0 Å$^2$ an essentially smaller alkyl chain cross-sectional area than the enantiomers with ∼20.7 Å$^2$.
000476504 536__ $$0G:(DE-HGF)POF4-899$$a899 - ohne Topic (POF4-899)$$cPOF4-899$$fPOF IV$$x0
000476504 588__ $$aDataset connected to CrossRef, Journals: bib-pubdb1.desy.de
000476504 693__ $$0EXP:(DE-H253)D-BW1-20150101$$1EXP:(DE-H253)DORISIII-20150101$$6EXP:(DE-H253)D-BW1-20150101$$aDORIS III$$fDORIS Beamline BW1$$x0
000476504 7001_ $$0P:(DE-H253)PIP1008188$$aStefaniu, C.$$b1
000476504 7001_ $$0P:(DE-H253)PIP1008088$$aBrezesinski, G.$$b2
000476504 773__ $$0PERI:(DE-600)1476244-4$$a10.1039/C8CP06481D$$gVol. 21, no. 1, p. 96 - 103$$n1$$p96 - 103$$tPhysical chemistry, chemical physics$$v21$$x1463-9076$$y2019
000476504 8564_ $$uhttps://bib-pubdb1.desy.de/record/476504/files/c8cp06481d.pdf$$yOpenAccess
000476504 8564_ $$uhttps://bib-pubdb1.desy.de/record/476504/files/c8cp06481d.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000476504 909CO $$ooai:bib-pubdb1.desy.de:476504$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000476504 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1008188$$aExternal Institute$$b1$$kExtern
000476504 9101_ $$0I:(DE-HGF)0$$6P:(DE-H253)PIP1008088$$aExternal Institute$$b2$$kExtern
000476504 9131_ $$0G:(DE-HGF)POF4-899$$1G:(DE-HGF)POF4-890$$2G:(DE-HGF)POF4-800$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bProgrammungebundene Forschung$$lohne Programm$$vohne Topic$$x0
000476504 915__ $$0LIC:(DE-HGF)CCBY3$$2HGFVOC$$aCreative Commons Attribution CC BY 3.0
000476504 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000476504 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0400$$2StatID$$aAllianz-Lizenz / DFG$$d2021-01-28$$wger
000476504 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bPHYS CHEM CHEM PHYS : 2019$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0430$$2StatID$$aNational-Konsortium$$d2021-01-28$$wger
000476504 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline$$d2021-01-28
000476504 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz$$d2021-01-28$$wger
000476504 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2021-01-28
000476504 9201_ $$0I:(DE-H253)HAS-User-20120731$$kDOOR ; HAS-User$$lDOOR-User$$x0
000476504 980__ $$ajournal
000476504 980__ $$aVDB
000476504 980__ $$aUNRESTRICTED
000476504 980__ $$aI:(DE-H253)HAS-User-20120731
000476504 9801_ $$aFullTexts