An Unprecedented Self-Penetrating Cu(I)-MOF Based on a New 1D Meso-Ladder + 2D Meso-Layer → 3D Polycatenation Subnet Showing Luminescent Sensing for Nitrobenzene

An unprecedented self-penetrating Cu(I)-MOF was synthesized. Interestingly, Complex 1 exhibits a novel two-level hierarchical entangled system with a new (73)(66.74)(66.73.8) topology first constructed from the rare meso-helical ladder and layer via inclined polycatenation, and also shows strong green emission in the solid-state and highly luminescent sensing for nitrobenzene.