Volume 26, Issue 3 pp. 236-248
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Synthesis of New Azole Phosphonate Precursors for Fuel Cells Proton Exchange Membranes

Fátima C. Teixeira

Corresponding Author

Fátima C. Teixeira

Laboratório Nacional de Energia e Geologia, I.P, Estrada do Paço do Lumiar, 22, 1649-038 Lisboa, Portugal

Correspondence to: Fátima C. Teixeira; e-mail: [email protected].Search for more papers by this author
C. M. Rangel

C. M. Rangel

Laboratório Nacional de Energia e Geologia, I.P, Estrada do Paço do Lumiar, 22, 1649-038 Lisboa, Portugal

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António P. S. Teixeira

António P. S. Teixeira

Departamento de Química, Escola de Ciências e Tecnologia, Centro de Química de Évora, Instituto de Investigação e Formação Avançada, Universidade de Évora, R. Romão Ramalho, 59, 7000-671 Évora, Portugal

Centro de Química Estrutural, IST, Universidade de Lisboa, Av., Rovisco Pais, 1, 1049-001 Lisboa, Portugal

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First published: 12 January 2015
Citations: 7

ABSTRACT

Herein we present the synthesis and characterization of new phosphonate-, bisphosphonate- and hydroxybisphosphonatebenzimidazole derivatives substituted at the N-1 position and new regioisomers phosphonate-, bisphosphonate-, and hydroxybisphosphonatebenzotriazole derivatives substituted at N-1 or N-2 positions. The compounds were characterized by NMR and IR spectroscopies, and mass spectrometry (low and high resolution) allowing the assignment of their structure, including the identification of regioisomers. These new azole monomers will be precursors for a mesoporous silica host to produce novel membrane materials with high proton conductivity for intermediate temperature proton exchange membrane fuel cells.

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