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Design and Synthesis of Soft-Organic Crystals by Introducing Slip-Planes

Lal, Garima (2013) Design and Synthesis of Soft-Organic Crystals by Introducing Slip-Planes. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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    Abstract

    This project focuses on designing of soft organic compounds based on the bending model. Plastic bending occurs in molecular crystals when the packing is anisotropic in such a way that strong and weak interaction patterns occur in nearly perpendicular directions. Interactions in such crystals are not uniform and similar in all directions. The mechanical properties of such molecular crystals can have unique applications in optoelectronics, mechanical actuators, artificial muscles, pharmaceuticals and explosives. In order to synthesize such compounds, 1,4,5,8-Naphthalenetetracarboxylic dianhydride (NDA) is chosen as the core material and substitutions are made through diimide nitrogens producing a range of analogues. On the basis of literature, molecules with hydrophobic groups such as t-Bu, multiple-halogen,-OMe are more likely to form slip planes in the crystal structures and therefore, substitutions with such groups are taken. The idea is based on the fact that the NDA core would self-assemble via - stacking interactions, and leave the hydrophobic groups to interact with themselves to form slip planes. Hence this combination should increase the probability of forming bending crystals.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. C. Malla Reddy
    Uncontrolled Keywords: Soft-Organic Crystals; Slip-Planes; Molecular Crystal; Crystal Engineering; Naphthalene Diimides
    Subjects: Q Science > QD Chemistry
    Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 01 May 2013 09:06
    Last Modified: 12 Nov 2014 09:42
    URI: http://eprints.iiserkol.ac.in/id/eprint/36

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