title: Synthesis, characterization and photophysical studies of self-assembled azo biphenyl urea derivatives.
abstract: We reported the synthesis of a new series of azobiphenyl based urea derivatives 7 and their stimulus-responsive supramolecular structures in the form of sheet like self-assembled formations. The self-assembled nanostructural formations of azo derivatives 7 are strongly dependent on the nature of the solvent present in the systems. Further, we found that the amide hydrogen played a crucial role in hydrogen bonding interactions to form a sheet like morphology upon stimulus responsive self-assembly. This was confirmed by transmission electron microscopy and atomic force microscopy.
authors.affiliation: Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-21, Tamilnadu, India. drasiva@gmail.com ptcsiva@yahoo.co.in.
authors.forename: Jayaraman
authors.initials: J
authors.lastname: Sivamani
authors.forename: Rajendiran
authors.initials: R
authors.lastname: Balasaravanan
authors.forename: Kumaraguru
authors.initials: K
authors.lastname: Duraimurugan
authors.forename: Ayyanar
authors.initials: A
authors.lastname: Siva
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D001713:Biphenyl Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D019281:Dimerization; D006860:Hydrogen Bonding; D007536:Isomerism; D008027:Light; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D014508:Urea / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D001391:Azo Compounds; D001713:Biphenyl Compounds; D014508:Urea; C010574:biphenyl