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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8206
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dc.contributor.authorBoopathi, A. A.-
dc.contributor.authorP. Lobo, Nitin-
dc.contributor.authorDeo Mishra, Vishnu-
dc.contributor.authorRoy, Arun-
dc.contributor.authorNarasimhaswamy, T.-
dc.date.accessioned2024-01-30T05:59:25Z-
dc.date.available2024-01-30T05:59:25Z-
dc.date.issued2023-06-28-
dc.identifier.citationLiquid Crystals,2023en_US
dc.identifier.issn1366-5855(online)-
dc.identifier.urihttp://hdl.handle.net/2289/8206-
dc.descriptionRestricted Access.en_US
dc.description.abstractStructurally simple two rod-like mesogens with a three-ring core consisting of biphenyl and phenyl rings are synthesised to investigate the mesophase properties, molecular organisation and the orientational order parameter. In mesogen-1, a dodecyloxy terminal chain is present on the biphenyl ringwhile the phenyl ring is free from substituent. For mesogen-2, in addition to the dodecyloxy chain, the butyl chain is placed on the phenyl ring. The Hot-stage optical polarising microscopy (HOPM) and differential scanning calorimetry (DSC) measurements show smectic A (SmA), smectic B (SmB), and crystal E (CryE) phases for mesogen-1 and SmA, smectic C (SmC) and smectic F (SmF) phases for mesogen-2. The presence of smectic mesophases is established by X-ray Diffraction (XRD). 1D and 2D 13C solid-state NMR experiments are performed in smectic mesophases to find the orientational order parameters of the phenyl rings of the core. The main order parameter (Szz) of the mesogens in the SmB and SmF phase is in the range of 0.87–0.93. The excellent spectral resolution noticed in 13C NMR spectra in the SmB mesophase (mesogen-1) indicates that the internal rotations of the molecules along the long axis are primarily unhindered.en_US
dc.language.isoenen_US
dc.publisherTaylor& Francis Groupen_US
dc.relation.urihttp://arxiv.org/abs/cond-mat/en_US
dc.relation.urihttps://doi.org/10.1080/02678292.2023.2227956en_US
dc.rights2023, The Publisheren_US
dc.subjectSmecticen_US
dc.subjectBiphenylen_US
dc.subject13C NMRen_US
dc.subject13C-1H dipolar couplingsen_US
dc.subjectOrder parameteren_US
dc.subjectXRDen_US
dc.titleMolecular organization and molecular order of two rod-like smectogens in mesophasesen_US
dc.typeArticleen_US
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