Ferrocenyl thiol

Scheme IV. Cross-sectional view of a two-terminal voltammetric microsensor based on the self-assembly of a hydroquinone thiol 5 and a ferrocenyl thiol 4 serving as reference and indicator respectively.

Electrodes modified by ferrocenyl polymers have been known for a long time.54,61,62 More recently, the Madrid group has extensively studied the derivatization of silylferrocenyl dendrimers.63 Nishihara s group has reported the first example of modified electrodes with AuNPs containing ferrocenyl thiol ligands, in which the stabilization of the modified electrodes is... 

Towards a Two-terminal Solid-state Sensor for CO The CO Dependent Electrochemistry of Self-assembled Ferrocenyl Ferraazetine and 11-Ferrocenylundecyl Thiol. 

Mixed monolayers can also be prepared by coadsorption of thiols and disulphides. Hydroxyl and methyl-terminated alkanethiols adsorb preferentially to the parent disulphides by a factor of ca 75119. However, formation of identical monolayers was reported by coadsorption of ferrocenyl and methyl-terminated derivatives regardless of whether they were both in the form of a thiol, or whether one of them was a disulphide165. 

FIGURE 9. Exposure of a mixed monolayer (a) to the solution of thiol A leads to partial replacement of ferrocenethiol (b). Further exposure to thiol B leads to the replacement of thiol A, but remaining ferrocenethiol is not replaced (c) (Fc = ferrocenyl)... 

Membrane-s )Anmn have been prepared. Tetraphenylpor-phyrins having jc-carboxy and jc-amino functionalities have been polymerized interfacially to produce chemically asymmetric membrane films.Mercaptoporphyrins have also been polymerized to form ultrathin films of a porphyrin homopolymer based upon 5,10,15,20-tetrakis-(Q -mercapto-j9-tolyl) porphyrin,and thiol-derivatized porphyrins for attachment to electroactive surfaces have been prepared and examined as means of information storage,including those having a ferrocenyl moiety appended in several ways. Various means of linking porphyrins to form arrays have been reviewed. Preparation and investigation of the physical properties of cyclic tetra-, hexa-, hepta-porphyrin and star-shaped multiporphyrin or star-shaped tetra- or octa-porphyrin, or monophthalocyanine arrays have been described and reviewed. As part of this work, methods of forming porphyrins in the presence of acid-labile metalloporphyrins that provide a new route to mixed-metal multiporphyrin arrays have been reported. ... 

Figure 10 A gold nanoparticle containing mixed dodecanethiol and amido(ferrocenyl)undecane thiol ligands.

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