Reversible structural switch in the nano-cavity of crystalline metallo-macrocycles with smooth ligand exchange by non-coordinating guest stimuli.
A tetranuclear Ni(II)-macrocycle consisting of β-dipeptides demonstrates effects of water vapor on the structural switching of the nano-cavity by ligand exchange in the single-crystal state. The content of non-coordinating water molecules regulates the opening and closing of the cavity through cooperation of smooth ligand exchange and internal hydrogen-bond switching.
Department of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-Ku, Tokyo 112-8610, Japan.
Ryosuke
R
Miyake
Mitsuhiko
M
Shionoya