Issue 22, 2015

Honeycomb supramolecular frameworks of organic–inorganic hybrid cluster composed of cation radical and Keggin-type polyoxometalate

Abstract

Keggin-type phosphomolybdic acid (H3PMo12O40) promoted the formation of a cation radical of tetra(thienylthio)-tetrathiafulvalene (TT-TTF), consequently resulting in a cation radical complex [(TT-TTF)+•]3[(PMo12O40)3−](CH2Cl2), which shows self-assembly in solution and forms microtubes. The molecular level structure of the microtube is evaluated by X-ray diffraction analysis, which reveals that the microtube is produced via various non-covalent interactions in the hierarchical assembly process: the electrostatic interactions between (TT-TTF)+• and (PMo12O40)3− afford an organic–inorganic hybrid triangular nanocluster [(TT-TTF)+•]3[(PMo12O40)3−] as the building block; the strong π–π interactions between (TT-TTF)+• result in the cluster-based two-dimensional honeycomb nanosheet; the van der Waals forces between the nanosheets lead to the propagation along the third direction to form a three-dimensional supramolecular framework possessing nano-sized channels.

Graphical abstract: Honeycomb supramolecular frameworks of organic–inorganic hybrid cluster composed of cation radical and Keggin-type polyoxometalate

Supplementary files

Article information

Article type
Paper
Submitted
11 Mar 2015
Accepted
20 Apr 2015
First published
24 Apr 2015

CrystEngComm, 2015,17, 4110-4116

Honeycomb supramolecular frameworks of organic–inorganic hybrid cluster composed of cation radical and Keggin-type polyoxometalate

S. Zhang, X. Lu, J. Sun, Y. Zhao and X. Shao, CrystEngComm, 2015, 17, 4110 DOI: 10.1039/C5CE00510H

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