Self Assembly of Perylene Based System: The effect of lone pair on aggregation

Sarkar, Arghya (2018) Self Assembly of Perylene Based System: The effect of lone pair on aggregation. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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A novel perylene based diimide(Py-PDI) having a picolyl group at one end and a solubilizing hexyl-heptyl chain at the other end was synthesized and its aggregation properties were studied with the help of UV-Vis Spectroscopy in various chloroform/methylcyclohexane(MCH) solvent mixtures. In order to substantiate the fact that lone pair plays a role in promoting aggregation, a control molecule was also synthesized having a benzyl group(B-PDI) instead of picolyl group. It was seen that nitrogen lone pair actually plays a role in promoting aggregation and the propensity of aggregation increases more than 10 folds with the incorporation of lone pair in the molecule.Finally, the mechanism of self assembly was studied from the Temperature dependent UV-Vis spectroscopy.It was seen that the Py-PDI follows an Isodesmic pathway of aggregation.

Item Type: Thesis (Masters)
Additional Information: Supervisor: Dr. Debansu Chaudhuri
Uncontrolled Keywords: PDI; Perylene Diimides; Self Assembly
Subjects: Q Science > QD Chemistry
Divisions: Department of Chemical Sciences
Depositing User: IISER Kolkata Librarian
Date Deposited: 13 Dec 2018 05:56
Last Modified: 13 Dec 2018 05:57

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