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      Metallo-supramolecular assembly of protic pincer-type complexes: encapsulation of dinitrogen and carbon disulfide into a multiproton-responsive diruthenium cage

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          Abstract

          A protic pincer complex and rigid diphosphine linker formed a cage, which incorporated N 2 and CS 2 into the multiproton-responsive cavity.

          Abstract

          Partial dehydrobromination of a diprotic pincer-type ruthenium complex in the presence of a rigid 1,3-bis(diphenylphosphino)benzene linker provided a dinuclear cage containing a guest template KBr surrounded by hydrogen bonds and electrostatic interactions. Dinitrogen and carbon disulfide were encapsulated into the cage with proton channels formed by the pyrazole arms in the pincer ligands.

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          Catalysts for nitrogen reduction to ammonia

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            Supramolecular transformations within discrete coordination-driven supramolecular architectures.

            In this review, a comprehensive summary of supramolecular transformations within discrete coordination-driven supramolecular architectures, including helices, metallacycles, metallacages, etc., is presented. Recent investigations have demonstrated that coordination-driven self-assembled architectures provide an ideal platform to study supramolecular transformations mainly due to the relatively rigid yet dynamic nature of the coordination bonds. Various stimuli have been extensively employed to trigger the transformation processes of metallosupramolecular architectures, such as solvents, concentration, anions, guests, change in component fractions or chemical compositions, light, and post-modification reactions, which allowed for the formation of new structures with specific properties and functions. Thus, it is believed that supramolecular transformations could serve as another highly efficient approach for generating diverse metallosupramolecular architectures. Classified by the aforementioned various stimuli used to induce the interconversion processes, the emphasis in this review will be on the transformation conditions, structural changes, mechanisms, and the output of specific properties and functions upon induction of structural transformations.
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              Chance and design--proton transfer in water, channels and bioenergetic proteins.

              Proton transfer and transport in water, gramicidin and some selected channels and bioenergetic proteins are reviewed. An attempt is made to draw some conclusions about how Nature designs long distance, proton transport functionality. The prevalence of water rather than amino acid hydrogen bonded chains is noted, and the possible benefits of waters as the major component are discussed qualitatively.
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                Author and article information

                Journal
                CHCOFS
                Chemical Communications
                Chem. Commun.
                Royal Society of Chemistry (RSC)
                1359-7345
                1364-548X
                January 22 2019
                2019
                : 55
                : 8
                : 1028-1031
                Affiliations
                [1 ]Department of Chemical Science and Engineering
                [2 ]School of Materials and Chemical Technology
                [3 ]Tokyo Institute of Technology
                [4 ]Meguro-ku
                [5 ]Japan
                Article
                10.1039/C8CC08384C
                5e23d767-dbf1-4bf2-8182-ef528e52ba34
                © 2019

                Free to read

                http://rsc.li/journals-terms-of-use#chorus

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