**10. References**


**14** 

*India* 

**Transformation of Soybean Oil to Various Self-**

Today's research worlds try to bring everything in nanosize and the tremendous development on nanosize and technology introduced numbers of molecules with immense applications. Though nanostructures from numbers of metals and materials are being synthesized, supramolecular structures attracts the research group at increasing level, because of the interest and urge to know the origin of life. Hence, research groups at global level are making attempts on how the self-assembly and the supramolecular structures have

Thus the design and the construction of supramolecular assembly/structures are quite interesting and various hypothetical theories have been developed to substantiate the origin of life. Supramolecular structures are large molecules fashioned by binding of smaller molecules mutually and it often to develop molecules of preferred form including 2D triangles, squares, pentagons, hexagons and 3D octahedrons, cubes and some irregular shapes. Self-assembly is the most prevailing methodology in the design of large, distinct,

The objects of supramolecular chemistry are defined on one hand by the nature of the molecular components and on the other by the type of interactions that hold them together. Three major steps are involved in supramolecular systems; (i) selective binding, (ii) growth of the components in the correct relative orientation and (iii) termination requiring a built in feature which signifies the end process. The chemistry of supramolecular structure is a constitutional dynamic chemistry due to the reversibility of the connecting events. The kinetic liability confers the self-assembling systems to undergo annealing and self-healing of defects and to manifest tunable degree of polymerization and cohesive properties. In contrast, covalent linked, nonlabile type cannot heal spontaneously and the defects are

According to Murakami, synthesis of supramolecular structure is based on the principle of molecular recognition and molecular self-assembly realized due to the formation of noncovalent interaction towards the cooperation of many weak bonds including electrostatic interaction, Van der Waals forces, dipole interaction, hydrogen bonding, hydrophobic interaction, and π–π interaction. Recently the interest was drawn to a new topological form of supramolecular structures by self-assembly and also by weak

been formed from the single and /or from the combination molecules.

**1. Introduction** 

ordered structures.

permanent (Lehn, 2005).

interactions.

**Assembled Supramolecular Structures** 

Arumugam Gnanamani, Varadharajan Kavitha,

*Central Leather Research Institute (CSIR), Adyar, Chennai* 

Ganesan Sekaran and Asit Baran Mandal

