Synthesis, characterization and effects to cholesteric lyotropic liquid crystal media of -ONNO- type Schiff bases and metal complexes

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dc.contributor.authorMeral, S.
dc.contributor.authorAğar, A. Alaman
dc.date.accessioned2025-03-23T19:17:18Z
dc.date.available2025-03-23T19:17:18Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractLyotropic liquid crystals (LLC) are remarkable candidates in biomimetic applications, and in this respect, their interaction mechanisms with the target molecule are controversial. The study aims to create an ordered host system for biosimilar guest molecules to determine interactions. -ONNO- type tetradentate julolidine derivative, symmetric Schiff bases were synthesized with 1,2-ethandiamine and 1,4-butanediamine, and then copper complexes were obtained from Schiff bases with a cage-like structure. To characterize the synthesized compounds FT-IR, 13C and 1H-NMR and UV-vis spectroscopies were employed. Decylammonium chloride (DACl), NH4Cl, H2O and the optically active amphiphilic molecule L-alanine decyl esther (L-ADE) as a chiral dopant were utilized in the host system. The properties of lyotropic cholesteric phases and the effects of the synthesized compounds were examined using a polarized optical microscope (POM) by measuring the helical pitch as a parameter. Synthesized Schiff bases and metal complexes (2.5-20 mM) were added to the cholesteric phase whose helical pitch was measured at 110 µm without destroying anisotropic properties. The synthesized compounds caused a lengthening in helical pitch due to settled micelles on the surface or within the micelle core, leading to a change in micelle-micelle interaction. Specifically, Cu(ac)2·H2O shortened the helical pitch. © 2024 Bulgarian Academy of Sciences, Union of Chemists in Bulgaria.
dc.description.sponsorshipSinop Üniversitesi, (BMYO-1901-21-001)
dc.identifier.doi10.34049/bcc.56.3.SM-M
dc.identifier.endpage281
dc.identifier.issn0861-9808
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85216121696
dc.identifier.scopusqualityQ4
dc.identifier.startpage274
dc.identifier.urihttps://doi.org/10.34049/bcc.56.3.SM-M
dc.identifier.urihttps://hdl.handle.net/11486/4303
dc.identifier.volume56
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherBulgarska Akademiya na Naukite
dc.relation.ispartofBulgarian Chemical Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250323
dc.subjectCholesteric lyotropic liquid crystal
dc.subjectHost-guest interaction
dc.subjectjulolidene derivative Schiff base
dc.subjectMetal complex
dc.titleSynthesis, characterization and effects to cholesteric lyotropic liquid crystal media of -ONNO- type Schiff bases and metal complexes
dc.typeArticle

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