Helical Anthracene–Ethyne-Based MOF-74 Analogue

A flexible, electron-rich building block was integrated into the backbone of a metal–organic framework with a MOF-74 topology. The building block comprises a central anthracene core connected to acetylene groups. Solvothermal synthesis with Mn 2+ yields a highly crystalline anthracene–ethyne-based MOF-74 structure. It shows an unusual helical rod-like morphology, exhibiting visible light absorption and photoluminescence.