New organotin carboxylates derived from 6-chloro-3-pyridineacetic acid exhibiting discrete molecular, drum-like, linear polymeric and ladder structures constructed from dimeric tetraorganodistannoxane units

Seven new organotin (IV) carboxylates have been synthesized by the reactions of 6-chloro-3-pyridineacetic acid with triorganotin chloride and diorganotin dichloride. All the complexes were characterized by elemental analysis, IR, 1H NMR, 13C NMR, 119Sn NMR and X-ray crystallography. The structural analyses show that all the complexes present various structures, including monomer, drum, 1D polymers and ladders. It is worth noting that complex 1 is a novel 1D spring-like helical chain containing guest solvent molecules.

Graphical abstractSeven new organotin (IV) carboxylates have been synthesized by the reactions of 6-chloro-3-pyridineacetic acid with triorganotin chloride and diorganotin dichloride. All the complexes were characterized by elemental analysis, IR, 1H NMR, 13C NMR, 119Sn NMR and X-ray crystallography. The structural analyses show that the complexes are present as a monomer, a drum, 1D polymers and ladders. It is worth noting that complex 1 is a novel 1D spring-like helical chain containing guest solvent molecules.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Organotin carboxylates have versatile molecular structures both in the solid state and in solution. ► Seven new organotin (IV) carboxylates have been synthesized by the reactions of 6-chloro-3-pyridineacetic acid with triorganotin chloride and diorganotin dichloride in this paper. ► The organotin structures reported in this paper further enrich organotin chemistry in the structural field.