Anion Receptor Electrochemical Sensing Properties of Poly(propyleneimine) Dendrimers with Ferrocenylamidoalkyl Terminal Groups
摘要:
A novel family of dendrimers with amidoferrocenyl units attached to diaminobutane-based poly(propyleneimine) surfaces through alkyl chains, DAB-dend-[NHCO(CH2)(10)HNCOFc](x) (3-6: x = 4, 8, 16, 32), Fc = [eta(5)-C5H5]Fe[eta(5)-C5H4], has been prepared by reaction of the novel functionalized ferrocenyl derivative [eta 5-C5H5]Fe[eta(5)-C5H4CONH(CH2)(10)COF] (2) with the corresponding amine dendrimers. Characterization of the synthesized dendrimers by H-1 and C-13{H-1} NMR and IR spectroscopy and mass spectrometry supports their assigned structures. The redox activity of the ferrocenyl centers in 3-6 has been characterized by cyclic voltammetry. These compounds showed electrochemical responses to the anions not only in organic solvents but also immobilized onto electrode surfaces in organic and aqueous media. Selective recognition for H2PO4- over other anions was observed.
Anion Receptor Electrochemical Sensing Properties of Poly(propyleneimine) Dendrimers with Ferrocenylamidoalkyl Terminal Groups
摘要:
A novel family of dendrimers with amidoferrocenyl units attached to diaminobutane-based poly(propyleneimine) surfaces through alkyl chains, DAB-dend-[NHCO(CH2)(10)HNCOFc](x) (3-6: x = 4, 8, 16, 32), Fc = [eta(5)-C5H5]Fe[eta(5)-C5H4], has been prepared by reaction of the novel functionalized ferrocenyl derivative [eta 5-C5H5]Fe[eta(5)-C5H4CONH(CH2)(10)COF] (2) with the corresponding amine dendrimers. Characterization of the synthesized dendrimers by H-1 and C-13{H-1} NMR and IR spectroscopy and mass spectrometry supports their assigned structures. The redox activity of the ferrocenyl centers in 3-6 has been characterized by cyclic voltammetry. These compounds showed electrochemical responses to the anions not only in organic solvents but also immobilized onto electrode surfaces in organic and aqueous media. Selective recognition for H2PO4- over other anions was observed.