Stepwise pesudopolyrotaxane nanostructure formation from supramolecular self-assembly by inclusion complexation of fast violet B with α- and β-cyclodextrins

Ramasamy Kandasamy Sankaranarayanan, Govindaraj Venkatesh, Jayashree Ethiraj, Mahesh Pattabiraman, Kandasamy Saravanakumar, Ganesan Arivazhagan, Ramasamy Shanmugam, Narayanasamy Rajendiran

Research output: Contribution to journalArticlepeer-review

Abstract

The current work deals with fast violet B (FVB) and cyclodextrins (α-CD and β-CD) inclusion complex into pesudopolyrotaxane nanorod by supramolecular self-assembly. FVB/α-CD forms 2:2 from 1:1 and FVB/β-CD forms 1:2 from 1:1 inclusion complexes, which further self assembled to form nanorod and nano cluster structures. The nanorods formed through step-by-step process after FVB encapsulation into cyclodextrins nano cavities. Wide angle powder X-ray diffraction exposed the crystallinity of the materials, thermal analysis, Fourier Transform Infrared Spectroscopy (FTIR) and Proton Nuclear Magnetic Resonance spectroscopy (1H NMR and 2D ROESY) confirmed FVB encapsulation into the CDs cavities. Amido functionality of FVB molecule is twisted when it is encapsulated within α-CD and β-CD cavities. Computational studies further divulge that the complex formation is an enthalpy-entropy driven process.

Original languageEnglish (US)
Article number133080
JournalJournal of Molecular Structure
Volume1262
DOIs
StatePublished - Aug 15 2022

Keywords

  • Cyclodextrin
  • Pseudo polyrotaxane
  • Self-assembly
  • Supramolecular

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Stepwise pesudopolyrotaxane nanostructure formation from supramolecular self-assembly by inclusion complexation of fast violet B with α- and β-cyclodextrins'. Together they form a unique fingerprint.

Cite this