Gyroidal metal-organic frameworks.

The gyroid is ubiquitous for underlying the construction of natural substance and artificial zeolites, but it has been, surprisingly, overlooked by chemists who work in the field of metal-organic frameworks (MOFs). In this work, a series of gyroidal MOFs with gie topology, constructed from 1,2-bis((5H-imidazol-4-yl)methylene)hydrazine and octahedral metal ions, such as Zn(II), Mn(II), Cu(II), and Ni(II), have been synthesized. The Zn(II) analogue, named as STU-1, shows exceptional thermal and chemical stabilities, and exhibits permanent porosity and CO(2) capture ability.