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Issue 23, 2018
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Construction of half-sandwich multinuclear complexes including tunnel architectures via C–H-activation-directed assembly

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Abstract

Three aromatic ligands containing carboxyl- or nitrogen-substituted groups were employed in the construction of half-sandwich complexes via C–H activation-directed assembly, leading to the construction of eleven multinuclear organometallic iridium or rhodium complexes, including those of bi-, tetra-, hexa- and octanuclear, under mild conditions, with the help of N-donor linkers. These complexes were characterized by proton NMR, IR spectroscopy, elemental analysis, electrospray ionization (ESI) mass spectrometry and single-crystal X-ray diffraction analysis. In these complexes, two complexes were observed to exist as isomers, and several racemic enantiomers can be found. X-ray crystal structure determinations show that a series of supramolecular tunnel architectures are formed by stacking through hydrogen-bond interactions, and solvent or trifluoromethylsulfonate anion guests were found to be located in certain parts of the channels. This work represents the first successful construction of octanuclear half-sandwich complexes based on the cleavage of C–H bonds.

Graphical abstract: Construction of half-sandwich multinuclear complexes including tunnel architectures via C–H-activation-directed assembly

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The article was received on 25 Mar 2018, accepted on 07 May 2018 and first published on 09 May 2018


Article type: Paper
DOI: 10.1039/C8DT01140K
Citation: Dalton Trans., 2018,47, 7701-7708
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    Construction of half-sandwich multinuclear complexes including tunnel architectures via C–H-activation-directed assembly

    B. Guo, W. Gao, Y. Lin and G. Jin, Dalton Trans., 2018, 47, 7701
    DOI: 10.1039/C8DT01140K

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