Ortiz-Frade L, Reyna-Cancino JA, Ruiz-Azuara L, Moreno-Esparza R, Martínez-García M, Klimova E, Altamirano M

Idioma: Ingles.
Referencias bibliográficas: 37
Paginas: 21-25
Archivo PDF: 124.86 Kb.

RESUMEN

Los derivados del Ferroceno han sido empleados en la síntesis de materiales poliméricos con resistencia térmica y con propiedades ópticas no lineales y en el campo de la electroquímica supramolecular como receptores de interruptores redox. Por estas razones los estudios electroquímicos de los derivados ferrocenil se han incrementado en los últimos años. Con la finalidad de caracterizar moléculas con potenciales usos en la síntesis de materiales poliméricos y entender su comportamiento electroquímico, este trabajo presenta estudios electroquímicos de derivados cis-diferroceniletenos (cis-2,3-Diferrocenilacrilato de isopropilo (1), Ácido cis-2,3-Diferrocenilacrílico (2), cis-2,3-Diferrocenilacrilohidrazida (3), Piperidina del Ácido cis-2,3-Diferrocenilacrílico (4), cis-3,4-Diferrocenil-2-metilbut-3-en-ol (5), cis-1,1-Difenil-2,3-Diferrocenilprop-2-en-1-ol (6). Todos los compuestos presentan dos procesos de oxidación (I-II), atribuidos a la oxidación de los dos ferrocenos , E_1/2(I), E_1/2(II), ΔE_1/2 (II-I). Se calcula la constante de desproporción K_com. De este valor se propone que las moléculas que contienen el grupo carbonilo (1-4) presentan una gran comunicación electrónica comparada con las moléculas que contiene un grupo hidroxil (5-6). El espectro UV-vis de todos los compuestos se obtuvo en butironitrilo. Se encontró también una correlación entre K_com y λ_max.

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