Multicomponent X-ray Shielding Using Sulfated Cerium Oxide and Bismuth Halide Composites.

Lead is the most widely used X-ray-shielding material, but it is heavy (density ≈ 11.34 g/cm) and toxic. Therefore, the replacement of Pb with lightweight, ecofriendly materials would be beneficial, and such materials would have applications in medicine, electronics, and aerospace engineering.

Circularly Polarized Luminescence Active Supramolecular Nanotubes Based on Pt Complexes That Undergo Dynamic Morphological Transformation and Helicity Inversion.

Circularly polarized luminescence (CPL) with tunable chirality is currently a challenging issue in the development of supramolecular nanomaterials. We herein report the formation of helical nanoribbons which grow into helical tubes through dynamic helicity inversion. For this, chiral Pt complexes of terpyridine derivatives, namely S-trans-1 and R-trans-1, with respective S- and R-alanine subunits and incorporating trans-double bonds in the alkyl chain were prepared.

Exciplex emissive supramolecular polymer formed by tuning molecular conformation.

We demonstrated the exciplex emission of supramolecular polymers (Bipy-1) possessing bipyridine and pyrene moieties. The distinctive exciplex emission of the supramolecular polymers was controlled by tuning the molecular conformation in different composition ratios of a mixed DMSO/H2O solution. The strong exciplex emission of the supramolecular polymer I with yellow emission was a consequence of the intramolecular charge-transfer interactions in a mixed DMSO/H2O (60 : 40-1 : 99 v/v) solution.

Bispicolyamine-Based Supramolecular Polymeric Gels Induced by Distinct Different Driving Forces with and Without Zn.

Metal-coordination polymeric gels are interesting areas as organic/inorganic hybrid supramolecular materials. The bispicolylamine (BPA) based gelator () showed excellent gelation with typical fibrillar morphology in acetonitrile. Upon complexing with Zn, complexes ([ + Zn + ACN] and [ + zinc trifluoromethanesulfonate (ZnOTf)]) with four coordination numbers were formed, which determine the gel structure significantly.