title: Simultaneous arrangement of up to three different molecules on the pore surface of a metal-macrocycle framework: cooperation and competition.
abstract: Porous crystals are excellent materials with potential spatial functions through molecular encapsulation within the pores. Co-encapsulation of multiple different molecules further expands their usability and designability. Herein we report the simultaneous arrangement of up to three different guest molecules, TTF (tetrathiafulvalene), ferrocene, and fluorene, on the pore surfaces of a porous crystalline metal-macrocycle framework (MMF). The position and orientation of adsorbed molecules arranged in the pore were determined by single-crystal X-ray diffraction analysis. The anchoring effect of hydrogen bonds between the hydroxy groups of the guest molecules and inter-guest cooperation and competition are significant factors in the adsorption behaviors of the guest molecules. This finding would serve as a design basis of multicomponent functionalized nanospaces for elaborate reactions that are realized in enzymes.
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan).
authors.forename: Shohei
authors.initials: S
authors.lastname: Tashiro
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Umeki
authors.forename: Ryou
authors.initials: R
authors.lastname: Kubota
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Shionoya
keywords: crystal engineering; macrocyclic ligands; molecular recognition; palladium; structure elucidation