Tuning the entanglement of coordination polymers by controlling the steric hindrance of organic linkers

In this paper, through the adjustment of alkyls attached to fluorene-based dicarboxylic acids, two Cd(II) coordination polymers featuring different entangled structures have been synthesized under the same solvothermal condition, which shows that the rational modulation of organic ligands’ steric hindrance is an effective approach to the construction of novel entangled framework.