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Characterization of Composite Phthalocyanine-Fatty Acid Films From the air/water Interface to Solid Supports

Characterization of Composite Phthalocyanine-Fatty Acid Films From the air/water Interface to Solid Supports

G Giancane, D Manno, A Serra, V Sgobba, L Valli

J Phys Chem B. 2011 Dec 22;115(50):14956-62.

PMID: 22070128

Abstract:

A commercial vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPc) was dissolved in chloroform and spread on ultrapure water subphase in a Langmuir trough. The floating film was thoroughly characterized at the air-water interface by means of the Langmuir isotherm, Brewster angle microscopy, UV-vis reflection spectroscopy, and infrared measurements carried out directly at the air-water interface. All the results showed the formation of a non-uniform and aggregated floating layer, too rigid to be transferred by the Langmuir-Blodgett (LB) method. For this reason, a mixture of arachidic acid and VOPc was realized, characterized, and transferred by the LB technique on solid substrates. Interface measurements and atomic force microscopy analysis suggested the formation of a uniform arachidic acid film and a superimposed VOPc placed in prone configuration.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP109738218	Vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine		109738-21-8	Price

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