408328-49-4Relevant academic research and scientific papers
Conformational control of bis-urea self-assembled supramolecular pH switchable low-molecular-weight hydrogelators
Chippindale, Ann M.,Christie, William,Gavriel, Alexander G.,German, Ian M.,Hayes, Wayne,O'Donnell, Adam D.
, (2021/11/03)
We report the synthesis and investigation into the structure-property relationships of eight different low molecular weight hydrogelators based on a bisaromatic urea core unit, all of which form gels as the pH of the solution is lowered. The low molecular weight hydrogelators are functionalized with carboxylic acid moieties on one aromatic ring, and the other aromatic ring features a nitro functional group either in the meta- or paraposition relative to the urea linkage. Ortho-methyl substituents were installed on the aromatic rings to enforce a non-coplanar arrangement between the phenyl and urea moieties. Gel formation was triggered by the addition of a mineral acid or the ring-opening hydrolysis of glucono-δ-lactone. The low molecular weight hydrogelators were studied by a variety of analytical techniques, including NMR spectroscopy and rheology. In addition, their ability to uptake a dye, methylene blue, was determined by UV-vis spectroscopy. (Figure Presented)
Two birds with one stone: Self-assembly of metal-organic coordination complexes with discrete metallamacrocycle and 1D zigzag chain based on a flexible dicarboxylate ligand
Guo, Jie,Zhang, Liangliang,Ma, Huiqing,Chen, Zhen,Sun, Di,Wei, Yanhui,Sun, Daofeng
, p. 75 - 80 (2013/03/13)
To assemble metal-organic coordination complexes, a flexible dicarboxylate ligand, 2,2′-(4,6-dimethyl-5-nitro-1,3-phenylene)bis(methylene)-bis- (sulfanediyl)dibenzoic acid (H2L), has been designed and synthesized. Using the flexible ligand to a
