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Anion‐Responsive Diguanidinium‐Based Chiral Organogelators
Author(s) -
Valero Julián,
Escuder Beatriu,
Miravet Juan F.,
de Mendoza Javier
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201200943
Subject(s) - circular dichroism , chirality (physics) , aqueous solution , chemistry , scanning electron microscope , phase (matter) , crystallography , chloride , spectroscopy , bicyclic molecule , ion , electron microscope , stereochemistry , chemical engineering , organic chemistry , materials science , chiral symmetry , optics , physics , engineering , quantum mechanics , nambu–jona lasinio model , composite material , quark
The chiral bicyclic diguanidinium chloride 1 forms gels in aromatic apolar solvents. The gels were characterized at different levels of organization, from the macroscopic to the molecular level by using microscopy, spectroscopy, and powder X‐ray diffraction. The dependency on chirality has been highlighted by circular dichroism and electron microscopy. Furthermore, the gel has been shown to be effectively responsive to anionic stimuli, thus allowing the reversible control of the organic‐phase gelation in contact with different salted aqueous solutions.