Redox-switchable breathing behavior in tetrathiafulvalene-based metal-organic frameworks. Academic Article uri icon


  • Metal-organic frameworks (MOFs) that respond to external stimuli such as guest molecules, temperature, or redox conditions are highly desirable. Herein, we coupled redox-switchable properties with breathing behavior induced by guest molecules in a single framework. Guided by topology, two flexible isomeric MOFs, compounds 1 and 2, with a formula of In(Me2NH2)(TTFTB), were constructed via a combination of [In(COO)4]- metal nodes and tetratopic tetrathiafulvalene-based linkers (TTFTB). The two compounds show different breathing behaviors upon the introduction of N2. Single-crystal X-ray diffraction, accompanied by molecular simulations, reveals that the breathing mechanism of 1 involves the bending of metal-ligand bonds and the sliding of interpenetrated frameworks, while 2 undergoes simple distortion of linkers. Reversible oxidation and reduction of TTF moieties changes the linker flexibility, which in turn switches the breathing behavior of 2. The redox-switchable breathing behavior can potentially be applied to the design of stimuli-responsive MOFs.

published proceedings

  • Nat Commun

altmetric score

  • 3.75

author list (cited authors)

  • Su, J., Yuan, S., Wang, H., Huang, L., Ge, J., Joseph, E., ... Zhou, H.

citation count

  • 100

complete list of authors

  • Su, Jian||Yuan, Shuai||Wang, Hai-Ying||Huang, Lan||Ge, Jing-Yuan||Joseph, Elizabeth||Qin, Junsheng||Cagin, Tahir||Zuo, Jing-Lin||Zhou, Hong-Cai

publication date

  • December 2017