Fluorine–fluorine type II versus πF–π stacking interactions in the supramolecular organizations of extended thiophene derivatives end capped by imino-perfluorophenyl units

Topological and packing mode modification for solid-state emission enhancement of bis(perfluorostyryl)furan derivatives

“…Type II FÁ Á ÁF contacts take place between the columns of stacked molecules with the columns being separated by 2.988(4) Å. 35,37 The stacks are offset by y 1 = 81.01 and y 2 = 163.81 (green dotted lines in Fig. 2), leading to quasi-orthogonality of the two pentafluorobenzenes.…”

Facile Access to Fluoroaromatic Molecules by Transition-Metal-Free C-F Bond Cleavage of Polyfluoroarenes: An Efficient, Green, and Sustainable Protocol

“…This type of transformation shows obvious advantages in the C–F bond functionalized reactions for the substrates bearing sensitive groups by other methods. Additionally, owing to the particularity of the structure and function, polyfluoroarenes have been further applied in the fields of pharmaceutical, supramolecular, and polymer chemistry via sequential nucleophilic substitutions. Especially in recent years, the polyfluoroaryl frameworks have demonstrated many promising contributions in materials fabrications (such as liquid‐crystal and optoelectronic materials) for elevating their performance.…”

Recycling and the end of life assessment of fluoropolymers: recent developments, challenges and future trends

“…One case study investigated the coating of FEP waste, where a terpolymer based on poly(ethylene oxide) methacrylate (PEGMA), Nile Blue methacrylate and 2,2,2trifluoroethyl a-fluoroacrylate (FATRIFE) (Scheme 1) was coated on it 38,39 due to the fluorine-fluorine interactions. [40][41][42][43] The choice of these three monomers was based on the hydrophilicity of PEGMA, enabling water-soluble nutriments to reach plants, (ii) NBMA as a sensor to observe the growing roots of plants in transparent soil and (iii) adhesion of FATRIFE on FEP via F-F interactions. In this case, although the kinetics of terpolymerisation was not studied, it was assumed that the a-fluoroacrylate was the most reactive monomer.…”