Abstract
The supramolecular polymer of the type [Me2SnCl2L], 1, L = 2,2'-bipyridine (2,2'-bpy), has been synthesized by the reaction of dimethyltin (IV) dichloride and 5-nitroisophthallic acid in the presence of sodium ethoxide and 2,2'-bpy. The compound was structurally characterized by elemental analysis, FT-IR spectra and X-ray single crystal. The x-ray data exhibited 1:1 stoichiometry for the dimethyltin dichloride: 2,2'-bpy ligands. The structure of 1 extends along the a-axis in a parallel way forming 1D-chains via H-bonds while they further propagate creating 2D- network via extensive H-bonds. The biological activity against some fungi and bacterial microorganisms has been also studied.
Highlights
Supramolecular chemistry is concerned with preparing assemblies of molecules using a combination of secondary chemical interactions rather than covalent bonding [13]
Supramolecular design and biological activity of coordination polymer based on dimethyltin (IV) ... 19
Supramolecular design and biological activity of coordination polymer based on dimethyltin (IV) ... 21 bonds represent the only supramolecular interaction in the structure of 1
Summary
Supramolecular chemistry is concerned with preparing assemblies of molecules using a combination of secondary chemical interactions rather than covalent bonding [13]. The comparatively simple molecules used in these assembles are driven to spontaneously self-assemble, and hold together, via such non-covalent interactions as hydrogen bonds, metal–ligand coordination interactions and π-π stacking. Has long been known: Fischer's lock-and-key theory of enzyme activity may be considered as their foundation store because it recognized the central role of shape and geometry in molecular interactions. Investigations have been carried out to test their antitumor activity and it has been observed that several diorganotin adducts show potentials antineoplastic, antituberculotic agents, bioactivities, in particular as potential biocidal (e.g., antimicrobial, antifungal) [15-17]. We report the synthesis crystal structure and biological activities of dimethyltin (IV) polymer of the type [Me2SnCl2.(2,2'-bipy)]n. Supramolecular design and biological activity of coordination polymer based on dimethyltin (IV) ... Supramolecular design and biological activity of coordination polymer based on dimethyltin (IV) ... 19
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