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Influence of Subphase Parameters on the Nanostructures of 5,10,15,20-tetraphenyl-21H,23H-porphine Films at Air-Water Interface

Influence of Subphase Parameters on the Nanostructures of 5,10,15,20-tetraphenyl-21H,23H-porphine Films at Air-Water Interface

N Faria de Sales, H S Mansur

J Nanosci Nanotechnol. 2009 Feb;9(2):688-91.

PMID: 19441372

Abstract:

In this work, we have evaluated the influence of concentration of 5,10,15,20-tetraphenyl-21H,23H-porphine solutions on pi-A isotherms, varying the pH of subphase. The obtained pi-A isotherms indicated the existence of different aggregation states and the dependence of area/molecule with the pH was established. There is an increase in the area/molecule for both pH = 5 and pH = 8 in low concentrations with a marked increase for the acid pH. Such trend has given such clearly evidence that proton (H+) effect in the chromophore macrocycle is potentially indicated for the pH-sensitive gas sensors.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP917237	5,10,15,20-Tetraphenyl-21H,23H-porphine		917-23-7	Price

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