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May 6, 2026The Journal of Physical Chemistry B0 citations

Noncovalent Interaction of 1-Ethyl-4-(Methoxycarbonyl)Pyridinium Iodide with Conjugated Polymer-Wrapped Single-Walled Carbon Nanotubes: Dependence of Molecular Arrangement on the Nanotube Characteristics

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ZHZiyi HuHOHaddou OuradaMBMourad Boutahir

Key Points

  • The study investigates how molecular arrangement depends on the characteristics of carbon nanotubes during noncovalent interactions.
  • Characterized noncovalent interactions using steady-state and time-resolved spectroscopy
  • Analyzed 1-ethyl-4-(methoxycarbonyl)pyridinium iodide with single-walled carbon nanotubes
  • Studied effects of doping and filling on molecular arrangements in solutions
  • Demonstrated that adsorbed molecules showed different arrangements based on nanotube properties
  • Found excited-state radicals can outcompete ground-state ion pairs for surface sites
  • Confirmed that noncovalent interactions dominate between the adsorbed molecules and carbon nanotubes

Abstract

-doped or Se chain-filled SWCNTs in dichloromethane (DCM) was investigated based on steady-state and time-resolved spectroscopic characterization. A change in the arrangement of adsorbed molecules was found in solutions that were irradiated by the light beam at a wavelength close to the charge-transfer (CT) absorption band maximum of EMCPI, indicative of excited-state radicals outcompeting ground-state ion pairs for surface sites on PCz-wrapped SWCNTs. The interaction of either ions or radicals with PCz-wrapped SWCNTs was demonstrated to be noncovalent. It was also shown that the arrangement of adsorbed molecules was affected by doping or filling the SWCNTs.

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Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/69fa983604f884e66b531eechttps://doi.org/10.1021/acs.jpcb.6c02202
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