Abstract
Twelve Zn(II) frameworks with furan, thiophene, and selenophene dicarboxylate and dipyridyl ligands have been synthesized by solvothermal methods in both the presence and the absence of water to investigate the subtle differences in structure and properties of the framework with changes in the linearity of the ligands. The large change in the ligand bend angle (10°) of the furan ring when compared to either thiophene or selenophene results in the formation of a number of frameworks with unexpected topologies. By using only ligands containing thiophene and selenophene, which differ in their ligand bend angle by only 2°, a series of four isostructural Zn(II) paddlewheel frameworks were obtained and their subtle differences investigated using UV/vis/NIR spectroscopy and gas adsorption experiments with N2, H2, and CO2.
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