Grid Forming Metal Coordinating Macroligands: Synthesis and Complexation

The synthesis of poly(L-lactide) bispyridylpyridazine macroligands from a hydroxyl functionalized ligand by controlled ring-opening polymerization is described. The resulting macroligands were characterized by 1H-NMR spectroscopy, GPC and MALDI-TOF MS. The metal coordination of those macroligands with copper(I) resulting in polymeric [2x2] metal grids was investigated by UV-vis titration studies. In addition, the complexation behavior obtained from these experiments was modeled in order to explore the complexation parameters and the corresponding mechanism.