Synthesis and hollow-sphere nanostructures of optically active metal-free phthalocyanine

Wei Lv, Xiaomei Zhang*, Jitao Lu, Yuexing Zhang, Xiyou Li, Jianzhuang Jiang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Optically active metal-free phthalocyanine (1) decorated with four octyl chains linked through binaphthyl units to the phthalocyanine ring was designed and prepared. This compound was characterized by a wide range of spectroscopic methods in addition to elemental analysis. By employing a solution injection method, both the (R) and (S) enantiomers self-assemble into nanoparticles. Surprisingly, with the addition of a small amount of cetyltrimethylammonium bromide (CTAB), nanostructures with hollow-sphere morphologies were formed. The hollow-spherical structure was determined by transmission electronic microscopy and scanning electronic microscopy. X-ray photoelectron spectroscopy together with FTIR spectra indicates the supramolecular structures formed from the metal-free phthalocyanine molecules. Lowangle X-ray diffraction reveals the stacked phthalocyanine molecules with a face-to-face configuration in the nanoscale hollow spheres formed with the help of CTAB surfactant. The formation of H-aggregates in the nanoscale hollow spheres is further confirmed by electronic absorption spectroscopic result. This work, representing the first example of controllable organic nanostructures with a hollow sphere morphology fabricated from phthalocyanine provides an effective method towards phthalocyanine hollow nanospheres.

Original languageEnglish (US)
Pages (from-to)4255-4261
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number27
DOIs
StatePublished - Sep 1 2008

Keywords

  • Chirality
  • Hollow spheres
  • Nanostructures
  • Phthalocyanines
  • Self-assembly

ASJC Scopus subject areas

  • Inorganic Chemistry

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