Synthesis and physical properties of a ball-like three-dimensional π-conjugated molecule

Eiichi Kayahara, Takahiro Iwamoto, Hikaru Takaya, Toshiyasu Suzuki, Mamoru Fujitsuka, Tetsuro Majima, Nobuhiro Yasuda, Naoto Matsuyama, Shu Seki and Shigeru Yamago ()
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Eiichi Kayahara: Institute for Chemical Research, Kyoto University
Takahiro Iwamoto: Institute for Chemical Research, Kyoto University
Hikaru Takaya: Institute for Chemical Research, Kyoto University
Toshiyasu Suzuki: CREST, Japan Science and Technology Agency
Mamoru Fujitsuka: CREST, Japan Science and Technology Agency
Tetsuro Majima: CREST, Japan Science and Technology Agency
Nobuhiro Yasuda: Japan Synchrotron Radiation Research Institute
Naoto Matsuyama: Osaka University
Shu Seki: Osaka University
Shigeru Yamago: Institute for Chemical Research, Kyoto University

Nature Communications, 2013, vol. 4, issue 1, 1-7

Abstract: Abstract Curved π-conjugated molecules with closed and three-dimensional (3D) structures, such as fullerenes and carbon nanotubes, have been the subject of intensive research due to their potential applications in molecular electronics. However, basic molecular skeletons of 3D molecules are limited because of the lack of a rational and selective synthetic method by organic synthesis. Here we report the synthesis of a 3D π-conjugated molecule based on the platinum-mediated assembly of four molecules of a stannylated trisubstituted benzene derivative forming a hexanuclear platinum complex with an octahedral shape, from which reductive elimination of platinum gave the target molecule. As many supramolecular transition metal–ligand complexes with 3D cages and polyhedral structures have been synthesized by self-assembly of ligands and metals, the current assembly/reductive elimination strategy could provide a variety of new 3D π-conjugated molecules with different structures and topologies, which are challenging to obtain using conventional synthetic methods.

Date: 2013
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DOI: 10.1038/ncomms3694

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