Aromatic-aromatic interaction between 2,3,5-triphenyl-2H-tetrazolium chloride and poly(sodium 4-styrenesulfonate)

Ignacio Moreno-Villoslada*, Felipe González, Luciano Rivera, Susan Hess, Bernabé L. Rivas, Toshimichi Shibue, Hiroyuki Nishide

*この研究の対応する著者

研究成果: Article査読

32 被引用数 (Scopus)

抄録

Aromatic-aromatic interactions are found between the cationic molecule 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) and the molecule poly(sodium 4-styrenesulfonate) (PSS) which makes the overall interaction of TTC with PSS more intense than the interaction with other polyanions containing sulfonate groups and produces a decrease on the redox ability of ITC. Diafiltration was used to compare the binding of TTC to PSS, poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly(sodium 2-(N-acrylamido)-2-methylpropanesulfonate) (PAMPS). The UV-vis spectrum of TTC is changed in the presence of the aromatic polyanion. The 1H NMR signals of TTC are broadened and shifted in the presence of PSS, suggesting the occurrence of π-π interactions. Moreover, nuclear Overhauser effects (NOE) between the TTC and PSS protons are found. Possible structures for the complex are proposed.

本文言語English
ページ(範囲)6146-6150
ページ数5
ジャーナルJournal of Physical Chemistry B
111
22
DOI
出版ステータスPublished - 2007 6月 7

ASJC Scopus subject areas

  • 物理化学および理論化学

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