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Self-assembly of a supramolecular hexagram and a supramolecular pentagram

Author

Listed:
  • Zhilong Jiang

    (College of Chemistry and Chemical Engineering, Central South University)

  • Yiming Li

    (College of Chemistry and Chemical Engineering, Central South University)

  • Ming Wang

    (State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University
    Materials Science, Engineering, and Commercialization Program, Texas State University)

  • Bo Song

    (Materials Science, Engineering, and Commercialization Program, Texas State University
    University of South Florida)

  • Kun Wang

    (Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia)

  • Mingyu Sun

    (Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia)

  • Die Liu

    (College of Chemistry and Chemical Engineering, Central South University)

  • Xiaohong Li

    (College of Chemistry, Chemical Engineering and Materials Science, Soochow University)

  • Jie Yuan

    (College of Chemistry and Chemical Engineering, Central South University)

  • Mingzhao Chen

    (College of Chemistry and Chemical Engineering, Central South University)

  • Yuan Guo

    (College of Chemistry and Chemical Engineering, Central South University)

  • Xiaoyu Yang

    (College of Chemistry and Chemical Engineering, Central South University)

  • Tong Zhang

    (Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia)

  • Charles N. Moorefield

    (University of Akron)

  • George R. Newkome

    (University of Akron)

  • Bingqian Xu

    (Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia)

  • Xiaopeng Li

    (Materials Science, Engineering, and Commercialization Program, Texas State University
    University of South Florida)

  • Pingshan Wang

    (College of Chemistry and Chemical Engineering, Central South University)

Abstract

Five- and six-pointed star structures occur frequently in nature as flowers, snow-flakes, leaves and so on. These star-shaped patterns are also frequently used in both functional and artistic man-made architectures. Here following a stepwise synthesis and self-assembly approach, pentagonal and hexagonal metallosupramolecules possessing star-shaped motifs were prepared based on the careful design of metallo-organic ligands (MOLs). In the MOL design and preparation, robust ruthenium–terpyridyl complexes were employed to construct brominated metallo-organic intermediates, followed by a Suzuki coupling reaction to achieve the required ensemble. Ligand LA (VRu2+X, V=bisterpyridine, X=tetraterpyridine, Ru=Ruthenium) was initially used for the self-assembly of an anticipated hexagram upon reaction with Cd2+ or Fe2+; however, unexpected pentagonal structures were formed, that is, [Cd5LA5]30+ and [Fe5LA5]30+. In our redesign, LB [V(Ru2+X)2] was synthesized and treated with 60° V-shaped bisterpyridine (V) and Cd2+ to create hexagonal hexagram [Cd12V3LB3]36+ along with traces of the triangle [Cd3V3]6+. Finally, a pure supramolecular hexagram [Fe12V3LB3]36+ was successfully isolated in a high yield using Fe2+ with a higher assembly temperature.

Suggested Citation

  • Zhilong Jiang & Yiming Li & Ming Wang & Bo Song & Kun Wang & Mingyu Sun & Die Liu & Xiaohong Li & Jie Yuan & Mingzhao Chen & Yuan Guo & Xiaoyu Yang & Tong Zhang & Charles N. Moorefield & George R. New, 2017. "Self-assembly of a supramolecular hexagram and a supramolecular pentagram," Nature Communications, Nature, vol. 8(1), pages 1-9, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15476
    DOI: 10.1038/ncomms15476
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