Highly open chalcogenide frameworks built from unusual defective supertetrahedral clusters.

Enlarging the openess of chalcogenide frameworks is of significance for functionalizing semiconducting open frameworks, which are usually limited by their own interpenetration due to the rigid clusters and monotonous linkers. Herein, we report two zeolite-like chalcogenide open frameworks constructed from unusual defective supertetrahedral clusters and various kinds of linkers. Both the structures exhibit impressive architecture and high extra-framework volume ratios.