The impact of metal coordination on the assembly of bis(indolyl)methane-naphthalene-diimide amphiphiles

Bayindir S., Lee K. S., SARAÇOĞLU N., Parquette J. R.

DALTON TRANSACTIONS, vol.49, no.39, pp.13685-13692, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 39
  • Publication Date: 2020
  • Doi Number: 10.1039/d0dt02732d
  • Journal Name: DALTON TRANSACTIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), Chimica, Communication Abstracts, Compendex, EMBASE, MEDLINE
  • Page Numbers: pp.13685-13692
  • Ankara University Affiliated: No

Abstract

The self-assembly and coordination of amphiphiles comprised of naphthalenediimide (NDI) and bis (indolyl)methane (BIM) chromophores were investigated as a function of pH and metal. As observed by TEM, SEM and AFM imaging, the self-assembly of NDI-BIM 1 produced irregular nanostructures at neutral pH in CH3CN-H2O (1:1); whereas, well-defined nanotubes were observed at pH 2. Conversely, Fmoc-protected, NDI-BIM 2 formed nanotubes at neutral pH and nonspecific aggregates at pH 2. Upon coordination of Cu2+ ions to the bis(indoyl)methane moiety, a reorganization from nanotubes to vesicular structures was observed.