A high-conductivity crystal containing a copper(I) coordination polymer bridged by the organic acceptor tanc.
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Biomedical subjects
Makoto Tadokoro
Publications and source records attributed to Makoto Tadokoro.
Structures and phase transition of multi-layered water nanotube confined to nanochannels.
We placed nanometer-scale water-tube clusters with phase transition within a porous crystal formed from molecular blocks specifically designed to investigate the molecular dynamics of confined water molecules.
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One-dimensional void-space arrays constructed from a coordination polymer with bowl-like frameworks of cavitands.
A one-dimensional coordination polymer of [Mn(II)(hfac)2] bridged by new bowl-like ligands of cavitands was prepared and the crystal structure was determined by X-ray crystal analysis. Ethyl acetate molecules are necessarily included as guest molecules in each of the void-space cavities of the cavitands, and then are held by weak interaction forces.
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Self-organizing super-structures formed from hydrogen-bonded biimidazolate metal complexes.
Manipulation of molecular crystals formed from self-organization is one of the important methods to develop the new molecular functional materials. In particular, we look upon mutual cohesive interactions of hydrogen bonding and metal coordination as one useful tool to construct the preprogramming superstructures. In this study, five controlled superstructures of a one-dimensional linear chain--a zigzag ribbon, right-handed and left-handed helices, and a two-dimensional honeycomb sheet--are newly created by using the neutral metal complexes with some 2,2'-biimidazolate mono-anions.
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Side Arm Effects on Cyclen-Alkali Metal Cation Complexation: Highly Selective and Three-Dimensional Encapsulation of Na(+) Ion.
A variety of armed cyclens were prepared in which ester, amide, nitrile, and pyridine moieties were attached as cation-ligating side arms to a 12-membered ring. Ester-, amide-, and pyridine-armed cyclens nicely accommodated a Na(+) ion in a three-dimensional fashion and clearly discriminated the cation from Li(+) and K(+) ions. They extracted Na(+) ion more efficiently and selectively than common Na(+) ion-selective ligands. X-ray diffraction, FAB-MS, (23)Na NMR binding studies, and computer modeling experiments demonstrated that the cyclens having ester-, amide-, and pyridine-functionalized side arms formed highly selective encapsulated Na(+) complexes via a cooperative action of parent cyclen and side arms.
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