TY - JOUR
T1 - Stepwise pesudopolyrotaxane nanostructure formation from supramolecular self-assembly by inclusion complexation of fast violet B with α- and β-cyclodextrins
AU - Sankaranarayanan, Ramasamy Kandasamy
AU - Venkatesh, Govindaraj
AU - Ethiraj, Jayashree
AU - Pattabiraman, Mahesh
AU - Saravanakumar, Kandasamy
AU - Arivazhagan, Ganesan
AU - Shanmugam, Ramasamy
AU - Rajendiran, Narayanasamy
N1 - Publisher Copyright:
© 2022
PY - 2022/8/15
Y1 - 2022/8/15
N2 - 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.
AB - 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.
KW - Cyclodextrin
KW - Pseudo polyrotaxane
KW - Self-assembly
KW - Supramolecular
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U2 - 10.1016/j.molstruc.2022.133080
DO - 10.1016/j.molstruc.2022.133080
M3 - Article
AN - SCOPUS:85130940199
SN - 0022-2860
VL - 1262
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
M1 - 133080
ER -