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Journal of the Mexican Chemical Society

Print version ISSN 1870-249X

J. Mex. Chem. Soc vol.51 n.2 Ciudad de México Apr./Jun. 2007

 

Article

 

Parallel Synthesis of Polystyrene Anchored Imine Sulfide Materials: Sorption and Metal Sensing Studies

 

Aristides C. Valdés, Georgina Pina-Luis, Ignacio A. Rivero*

 

Centro de Graduados e Investigación. Instituto Tecnológico de Tijuana. Apartado Postal 1166. 22000. Tijuana, Baja California México. E-mail: irivero@tectijuana.mx

 

Recibido el 15 de enero de 2007
Aceptado el 10 de abril de 2007

 

Abstract

In the present work we report the synthesis of a combinatorial library of 30 phenyl-ethyl based N-derivatives [nitro, amines and imines] bound to PS-thiophenol resin. The five step reaction sequence was characterized by 1H NMR, MS and fluorescence spectroscopy of resin beads. The imines were screened for those that exhibited a large sorption capacity for Cu(II) and Pb(II) ions and those exhibiting a large fluorescence change upon the metal binding.

Keywords: Combinatorial library, solid phase, sensors, fluorescence.

 

Resumen

Se reporta la síntesis de una biblioteca combinatorial de 30 N-derivados fenil etilo (nitro, aminas e iminas) unidos a una resina PS-tiofenol. La secuencia de 5 pasos de reacción fue seguida por 1H RMN, EM y espectroscopia de fluorescencia de la resina. Las iminas fueron monitoreadas para aquellas que mostraron gran capacidad de porción para iones Cu(II) y Pb(II) y aquellas que mostraron un gran cambio de fluorescencia por la unión al metal.

Palabras clave: Biblioteca combinatorial, fase sólida, sensors, fluorescencia.

 

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Acknowledgments

The authors gratefully acknowledge support from Consejo Nacional de Ciencia y Tecnología, México, (CONACYT, Grant No. SEP-204-CO1-47835), Dirección General de Educación Superior Tecnológica, México (DGEST, 2007), A. C. Valdes thanks COSNET and Instituto de Materiales y Reactivos de la Universidad de la Habana, Cuba, for their support and Dra Marta Elena Díaz García for technical assistance.

 

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