Synthesis and characterization of an 8-membered ringlet and a novel sodium organotin carboxylic polymer

Two organotin complexes of two types were synthesized by different methods basing on the same materials. Characterizations of the complexes were achieved by elemental analysis, IR, NMR (1H, 13C and 119Sn) spectroscopy and X-ray crystallography diffraction analysis. X-ray data reveal that complex 1 is an 8-membered cycle and complex 2 is a surprising mixed sodium organotin carboxylic polymer, in which the sodium atom shows its ability to act as a heptacoordinated atom. It is worth to note that X-ray diffraction study reveals that complex 1 crystallizes in the triclinic space group P1, which is chiral space group.