Alternate stacking of transition metal ions and terephthalic acid molecules for the fabrication of self-assembled multilayers

Self-assembled multilayers consisting of transition metal ions and biscarboxyl acid molecules have been fabricated by a layer-by-layer chemisorption technique. As transition metal ion, zirconium (Zr(IV)) or titanium (Ti(IV)) was employed, while terephthalic acid (TPA) was used as biscarboxyl molecul...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2008-05, Vol.321 (1), p.249-253
Main Authors: Sugimura, H., Yonezawa, H., Asai, S., Sun, Q.-W., Ichii, T., Lee, K.-H., Murase, K., Noda, K., Matsushige, K.
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Layer-by-layer stacking
Metal–acid coordination
Self-assembled monolayer
Self-assembled multilayer
Surface physical chemistry
Terephthalic acid
Titanium
Zirconium
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Summary:Self-assembled multilayers consisting of transition metal ions and biscarboxyl acid molecules have been fabricated by a layer-by-layer chemisorption technique. As transition metal ion, zirconium (Zr(IV)) or titanium (Ti(IV)) was employed, while terephthalic acid (TPA) was used as biscarboxyl molecule. In the multilayers, two TPA monolayers were bridged by one monolayer of Zr(IV) or Ti(IV) most likely through coordination bonds between the metal ions and the carboxyl groups in the TPA molecules. Although the both transition metal ions were successfully applied to construct multilayers, the multilayer structure of the Ti–TPA system was more disordered than that of the Zr–TPA system as revealed by grazing incidence X-ray reflectivity.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2008.01.008