Styryl-based new organic chromophores bearing free amino and azomethine groups: synthesis, photophysical, NLO, and thermal properties

• Anka Utama Putra,
• Deniz Çakmaz,
• Nurgül Seferoğlu,
• Alberto Barsella and
• Zeynel Seferoğlu

Beilstein J. Org. Chem. 2020, 16, 2282–2296, doi:10.3762/bjoc.16.189

• classes [28]. Therefore, we investigated dye 8 as a prospect for a fluorescent pH sensor in a basic environment. After having determined the solubility of dye 8 in aqueous solution, the sensing capability of 8 toward hydroxide anions was tested. Several Britton–Robinson buffer solutions, with different pH

• synthesized and characterized a series of new push-pull styryl dyes with free amine functionalities and the corresponding Schiff base analogus. The Schiff bases were found to be able to detect hydroxide anions in DMSO and therefore could act as a pH sensor in a fully aqueous environment. The dyes 8–12 showed

1,2,3-Triazolium macrocycles in supramolecular chemistry

• Mastaneh Safarnejad Shad,
• Pulikkal Veettil Santhini and
• Wim Dehaen

Beilstein J. Org. Chem. 2019, 15, 2142–2155, doi:10.3762/bjoc.15.211

• receptors for molecular recognition of anionic species, pH sensors, mechanically interlocked molecules, molecular machines, and molecular reactors. Keywords: anion recognition; catenane; chalcogen bonding; click reaction; molecular reactor; hydrogen bonding; pH sensor; rotaxane; supramolecular; 1,2,3

Self and directed assembly: people and molecules

• Tony D. James

Beilstein J. Org. Chem. 2016, 12, 391–405, doi:10.3762/bjoc.12.42

• Shinkai, Director of the ERATO Chemirecognics Project (1990–95) [13]. Fluorescence photoinduced electron transfer (PET) pH sensor developed by A. P. De Silva. Fluorescence PET sensor for saccharides. (a) Glucose selective PET system. (b) Chiral discriminating PET system. (a) Fluorescence photoinduced