Abstract
The self-assembled reaction of 2-hydroxynicotinic acid, KOH and tri- n-butyltin chloride in CH 3OH and H 2O (V/V = 5:1) under solvothermal condition (150 °C) affords a novel mixed tri- and dibutyltin macrocyclic complex 1. Characterization of the complex 1 was achieved using elemental analysis, IR, NMR ( 1H, 13C and 119Sn) spectroscopy, TGA and X-ray crystallography diffraction analysis. X-ray data revealed that it is an unusual 16-membered macrocycle containing eight tin atoms, and they can be divided into four sorts by the distinct environments, the endocyclic tin atoms are best described as five- and six-coordinate and the exocyclic tin atoms as five-coordinate. Furthermore, a 2D corrugated sheet is formed by intermolecular C–H⋯Cl, O–H⋯N and O–H⋯O weak interactions.
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