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Giant regular polyhedra from calixarene carboxylates and uranyl

Author

Listed:
  • Sara Pasquale

    (Institute of Chemical Research of Catalonia (ICIQ))

  • Sara Sattin

    (Institute of Chemical Research of Catalonia (ICIQ))

  • Eduardo C. Escudero-Adán

    (X-Ray Diffraction Unit, Institute of Chemical Research of Catalonia (ICIQ))

  • Marta Martínez-Belmonte

    (X-Ray Diffraction Unit, Institute of Chemical Research of Catalonia (ICIQ))

  • Javier de Mendoza

    (Institute of Chemical Research of Catalonia (ICIQ))

Abstract

Self-assembly of large multi-component systems is a common strategy for the bottom-up construction of discrete, well-defined, nanoscopic-sized cages. Icosahedral or pseudospherical viral capsids, built up from hundreds of identical proteins, constitute typical examples of the complexity attained by biological self-assembly. Chemical versions of the so-called 5 Platonic regular or 13 Archimedean semi-regular polyhedra are usually assembled combining molecular platforms with metals with commensurate coordination spheres. Here we report novel, self-assembled cages, using the conical-shaped carboxylic acid derivatives of calix[4]arene and calix[5]arene as ligands, and the uranyl cation UO22+ as a metallic counterpart, which coordinates with three carboxylates at the equatorial plane, giving rise to hexagonal bipyramidal architectures. As a result, octahedral and icosahedral anionic metallocages of nanoscopic dimensions are formed with an unusually small number of components.

Suggested Citation

  • Sara Pasquale & Sara Sattin & Eduardo C. Escudero-Adán & Marta Martínez-Belmonte & Javier de Mendoza, 2012. "Giant regular polyhedra from calixarene carboxylates and uranyl," Nature Communications, Nature, vol. 3(1), pages 1-7, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1793
    DOI: 10.1038/ncomms1793
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    Cited by:

    1. Jiaqi Liang & Shuai Lu & Yang Yang & Yun-Jia Shen & Jin-Ku Bai & Xin Sun & Xu-Lang Chen & Jie Cui & Ai-Jiao Guan & Jun-Feng Xiang & Xiaopeng Li & Heng Wang & Yu-Dong Yang & Han-Yuan Gong, 2023. "Thermally-induced atropisomerism promotes metal-organic cage construction," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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