Aromatic-Aromatic Interaction between 2,3,5-Triphenyl-2H-tetrazolium Chloride and Poly(sodium 4-styrenesulfonate)
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- 作者：Ignacio Moreno-Villoslada ; Felipe Gonzá ; lez ; Luciano Rivera ; Susan Hess ; Bernabé ; L. Rivas ; Toshimichi Shibue ; Hiroyuki Nishide
- 刊名：Journal of Physical Chemistry B
- 出版年：2007
- 出版时间：June 7, 2007
- 年：2007
- 卷：111
- 期：22
- 页码：6146 - 6150
- 全文大小：179K
- 年卷期：v.111,no.22(June 7, 2007)
- ISSN：1520-5207
文摘
Aromatic-aromatic interactions are found between the cationic molecule 2,3,5-triphenyl-2H-tetrazoliumchloride (TTC) and the molecule poly(sodium 4-styrenesulfonate) (PSS) which makes the overall interactionof TTC with PSS more intense than the interaction with other polyanions containing sulfonate groups andproduces a decrease on the redox ability of TTC. Diafiltration was used to compare the binding of TTC toPSS, poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly(sodium 2-(N-acrylamido)-2-methyl-propanesulfonate) (PAMPS). The UV-vis spectrum of TTC is changed in the presence of the aromaticpolyanion. The 1H NMR signals of TTC are broadened and shifted in the presence of PSS, suggesting theoccurrence of 
- interactions. Moreover, nuclear Overhauser effects (NOE) between the TTC and PSSprotons are found. Possible structures for the complex are proposed.
- interactions. Moreover, nuclear Overhauser effects (NOE) between the TTC and PSSprotons are found. Possible structures for the complex are proposed.