Donor-acceptor interaction promoted gelation: visual observation of color change.
An anthrylidene derivative of arjunolic acid could immobilize varieties of organic solvents at low concentrations in the presence of an electron-deficient guest. Gelation in the presence of picric acid in organic solvents could be observed visually with concomitant color change. Electron micrographs of the xerogels showed a fibrous structure having fibers of submicron diameters. [structure: see text].
Bag
Braja Gopal
BG
Department of Chemistry and Chemical Technology, Vidyasagar University, West Midnapore 721 102, West Bengal, India. gopalbag@rediffmail.com
Maity
Gopal Chandra
GC
Dinda
Shaishab Kumar
SK