20.500.12556/DKUM-89855 Modeling of the resonant X-ray response of a chiral cubic phase The structure of a continuous-grid chiral cubic phase made of achiral constituent molecules is a hot topic in the field of thermotropic liquid crystals. Several structural models have been proposed so far. Resonant X-ray scattering (RXS), which gives information on the molecular orientation in the unit cell, could be applied to select the most appropriate model. We modeled the RXS response for the recently proposed chiral cubic phase structure with an all-hexagon chiral continuous grid. A tensor form factor of a unit cell is constructed, which enables calculation of intensities of peaks for all Miller indices. We find that all the symmetry allowed peaks are resonantly enhanced, and their intensity is much stronger than the intensity of the symmetry forbidden (resonant) peaks. In particular, we predict that a strong resonant enhancement of the symmetry allowed peaks (011) and (002), not observed in a nonresonant scattering, could be observed by RXS at the carbon absorption edge. By RXS at the sulfur absorption edge, one might observe a resonant peak (113) and resonantly enhanced peak (233), and resonant enhancement of all the peaks that are observed in a nonresonant scattering, which probably hide the rest of the predicted resonant peaks. chiral cubic phase resonant X-ray scattering theoretical modeling tensor form factor kiralna kubična faza resonančno rentgensko sipanje teoretično modeliranje tenzorski faktor oblike true false true MDPI Angleški jezik Slovenski jezik Znanstveno delo 2024-08-14 14:06:42 2024-08-14 14:16:01 2024-08-15 03:53:25 0000-00-00 00:00:00 2021 0 0 Str. 1-12 Št. 2, št. članka 214 Letn. 11 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2021-02-02 2021-02-18 2021-02-21 53 55156483 10.3390/cryst11020214 2073-4352 Grabovac-2021-Modeling_of_the_Resonant_X-ray_R.pdf Grabovac-2021-Modeling_of_the_Resonant_X-ray_R.pdf 1 468A89453C3E5949D3E560F55CDD894C 2d31015cf9811b8e02e0f2d36e9a0cbbc3dc82acdd9302da2394a6c06537df30 bc379dea-5a36-11ef-990d-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=182427 https://doi.org/10.3390/cryst11020214 0 c7fa979b-5a36-11ef-990d-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=182428 Fakulteta za naravoslovje in matematiko 0 0 0