Pyrazine Based Tectons in the Self-Assembly of Finite Two-

Dimensional Supramolecular Ensembles

Neeladri Das, PhD (Utah, USA)

Associate Professor

Dept. of Chemistry, Indian Institute of Technology Patna, Bihta- 801103, India;

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One of the prerequisites in the design of a new finite supramolecular framework is the synthesis of new building block which may also be referred to as a supramolecular synthons. In this context, several supramolecular synthons with interesting structural units have been developed and subsequently used as tectons in the self-assembly of finite supramolecular ensembles such as metallacycles and metallacages.1

In IIT Patna, we have developed interest in exploring “Pyrazine derivatives” as building blocks for the construction of supramolecular architectures. In this context, recently we reported synthesis of a new pyrazine based ditopic Pt(II) organometallic complex ( 1) and subsequently explored its potential utility as an acceptor building block.2,3 Synthesis and characterization of two-dimensional (2D) supramolecular architectures based on pyrazine unit containing acceptor and donor building blocks has been studied in our laboratory. Additionally, using various analytical techniques, host-guest interaction studies of these pyrazine based tectons and macrocycles with nitroaromatics has been studied extensively.

Reference:

1. (a) Xu, L.; Wang, Y.-X.; Yang, H.-B., Dalton Trans. 2015, 44(3), 867-890. (b) Schmidt, A.; Casini, A.; Kühn, F. E., Coord. Chem. Rev. 2014, 275, 19-36. (c) Cook, T. R.; Zheng, Y.-R.; Stang, P. J., Chem. Rev.2013, 113(1), 734-777.
2. Bhowmick, S.; Chakraborty, S.; Das, A.; Rajamohanan, P. R.; Das, N., Inorg. Chem.2015, 54, 2543−2550.
3. Bhowmick, S.; Chakraborty, S.; Das, A.; Nallapeta, S.; Das, N., Inorg. Chem.2015, 54, 8994−9001.